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Forum: Contest Voting 10-07-2018, 03:44 PM  
Into the sunset together?
Posted By DAZ
Replies: 4
Views: 42
"At height of man!"?


DAZ
Forum: Contest Voting 09-09-2018, 12:54 PM  
Into the sunset together?
Posted By DAZ
Replies: 4
Views: 42
DAZ59738 -2 by Dean Zierman, on Flickr
Forum: Monthly Photo Contests 06-17-2018, 10:50 AM  
Sticky: Contest Rules, Procedures, & How to Submit
Posted By DAZ
Replies: 268
Views: 139,551
This is mostly just speculation on my part, but it could have something to do with JavaScripts. Javascripts, especially off-site Javascripts, have become the security bane of the Internet. They make it much easier for the writers of websites/forums to write more complicated things like polls and pull-down menus. They also allow the Internet sites to push down things like ads from off-site servers and thus alleviate both the server load and the sites bandwidth requirements. This is where the security problem starts to raise its ugly head. These off-site servers can, in turn, run a script that directs to an additional off-site server argumentum ad infinitum. I have personally seen sites call up between 30 to 60 other server sites in a chain. Anyone of these sites could end up running a malicious JavaScript. At my work, the IT department filters out many of these so that a great many sites will not even be displayed or run. The users at my level have no control over this filtering. Many sites will direct you to turn off your “ad-blocker” software. From their point of view, all you are trying to do is block ads. The blocking of ads may at one time been the primary use for such software, but this has not become the case anymore. Many, possibly most, are just trying to stop the security hole of running off-site JavaScript. That, for example, is what is happening at my work. On my home system, I have much more granular control over blocking these scripts. Pentaxforums is not near as much of a security hole as most other sites as Adam is much more conscientious about such things. But even so, my system tells me that Pentaxforums is running as many as 9 site/off-site scripts. Adam would know exactly which off-site scripts would need to be let through for things like the site itself, poles, and drop-down menus to work. Of the 9, I allow at least 6 to run but I suspect a minimum of 3 is needed for things like polls and drop-down menus.

DAZ
Forum: Post Your Photos! 02-03-2018, 10:23 AM  
Backyard Wild Animals Contest Crab apple squirrel.
Posted By DAZ
Replies: 5
Views: 428

Thanks, it truly was inspired by Rupert.

Normally yes, they aresomewhat difficult to shoot but in this particular case no. When I took this photo, it also helped solve a minor mystery. In my yard,there is a crabapple tree. Every year Iwould see it grow if you crabapple’s, butI would never see them on the ground. Not that I one of the crabapples but the mystery was what was happeningto them? Part of the reason for metaking this photo is I wanted to see what it was eating. When I got the photo blown up on my computer screen, I could see that it was one of themissing crab apples. Otis and hisfriends were eating them all!

Rupert liked to point out that the best way to get Otis tohold still and not act so “squirrely” was to give him something to do,preferably by bribing him. A lot ofpeople use something like peanuts, but Iwouldn’t recommend that as it’s not good for Otis. Just about anything that can hold theirattention for a moment or 2 and make them predictable can be used. Something like dried corn or fruit may be preferable to something like nuts. The corn or the fruit they’re more likely towant to eat immediately whereas the nuts they may just scamper off and squirrelaway for later.

DAZ
Forum: Post Your Photos! 02-02-2018, 08:12 PM  
Backyard Wild Animals Contest Crab apple squirrel.
Posted By DAZ
Replies: 5
Views: 428
DAZ_2595 by Dean Zierman, on Flickr
Forum: Mini-Challenges, Games, and Photo Stories 01-21-2018, 10:46 AM  
Thematic A Flair for Flare
Posted By DAZ
Replies: 703
Views: 58,019


That is correct WPRESTO; it is the Barringe crater. For those that don’t know it is named Barringe crater after the man who 1st correctly identified it as a meteor crater. And when I refer to it as “really really big” it was not my intent to say it is the biggest. One of the things that is lacking in a photo,without something in the photo to give it a sense of scale, is the size of something. Other craters are larger and older, but this is considered the best-preserved crater. In this case, it comes down to that it is easiest to see that it is a crater. But even standing on the rim viewing it with your own eyes you don’t even get a sense of its scale then. I used a Sigma 8-16mm at 8 mm on an APS C camera to try to capture the crater. And even at 8 mm (about 120°), I couldn’t get it all in one frame. I’ve never had that problem before with this lens (said with a slightly sad and puzzled expression). Using your own eyes, you need to turn your head quite a bit to see the whole thing, and that is still not giving you a sense of scale. A few things to possibly help you put this into perspective. To the left of the lens flare on the crater rim is a large boulder. This is called “house boulder” because is said to be the size of a standard American house. But even that only helps a little bit. If you look extremely carefully at the crater floor, you will see that there are a few abandoned structures. Near one of those, they have placed an American flag the same size as the flag that was placed on the moon. Next to this flag is a life-size (6 foottall) white plywood cutout of an astronaut. Without this being pointed out most people (without optical aids) can not identify these objects nor even notice them.



DAZ
Forum: Mini-Challenges, Games, and Photo Stories 01-19-2018, 05:55 PM  
Thematic A Flair for Flare
Posted By DAZ
Replies: 703
Views: 58,019
DAZ58860 -1_stitch by Dean Zierman, on Flickr


Crater. Really really big.



DAZ
Forum: General Talk 11-01-2017, 07:57 PM  
The Joke Thread
Posted By DAZ
Replies: 1,165
Views: 89,301
So 1+1=10?

DAZ
Forum: Mini-Challenges, Games, and Photo Stories 08-25-2017, 03:08 PM  
Contest 2017 Solar Eclipse Challenge!
Posted By DAZ
Replies: 99
Views: 9,469
About everything I took for the eclipse of interest is in this album.

Eclipse2017 | Flickr

DAZ
Forum: General Talk 08-23-2017, 05:27 PM  
The Joke Thread
Posted By DAZ
Replies: 1,165
Views: 89,301
I decided to go see the eclipse. As it was predicted that so many people would be going to see this eclipse I decided to go 2 days early so I could be rested on the day of the eclipse. After driving most of the day I finally set up camp just before the sun was setting. Too tired to do almost anything else I crawled into my sleeping bag and looked up at my tent thinking I would at least have all day tomorrow to relax and rest.

In the middle of the night as the wind was lightly blowing across my face I looked up and saw the most glorious sight. It was so dark I could not see my hand in front of my face but I could see the sky was full of stars. I could see the Milky Way and all the constellations.

With all the awe-inspiring splendor above me, one and only one all-encompassing question came to my mind. Where did my tent go?































The answer, to this important and relevant question, was the gentle breeze had blown the tent flap back that I’d forgotten to zipper and my head was hanging out the door.

DAZ
Forum: General Photography 08-23-2017, 12:25 PM  
So you wanna photograph the Eclipse - what you need to know in (sorta) a nutshell
Posted By DAZ
Replies: 80
Views: 6,590
All that driving, the 3 days of waiting, the heat, the dust, the noisy neighbors so I couldn't sleep (not to mention sleeping on the ground for 3 nights), to top it all off a sunburn on the top of my feet (I forgot to put the sun screen on the top of my feet and I was wearing sandals) and all I have to show for it so far as this one photo. I think I'll take a break and see if I can come up with anything else later.

StarEclipse by Dean Zierman, on Flickr

DAZ
Forum: Pentax DSLR Discussion 08-13-2017, 09:41 AM  
Are we really THAT rare?
Posted By DAZ
Replies: 5,359
Views: 669,712
Don't get me started on purchasing furniture.

A little more on topic, let me get this straight, photographing photographers is a “thing”. And I thought it was just me.


DAZ



Photographers | Flickr
Forum: General Photography 07-30-2017, 12:04 PM  
On Crowd Candids & Etiquette OR How to Not Aggravate a Stranger
Posted By DAZ
Replies: 19
Views: 1,237
I have been out and about taking pictures of people for ongoing of 3 decades now. In my experience there mostly 5 kinds of people in regards to having their picture taken in public.

1. Those who don’t care or generally don’t care because they realize being out in public they can have their picture taken at any time.
2. Those who are out in public and are acting in such a way as to expect that their picture will be taken. Public performers, people in parades, or just acting in a way that they could anticipate that their picture might be taken.
3. People that for some personal reason don’t want their picture taken in public and mistakenly believe that they have a right to not have their picture taken in public.
4. General nut jobs that have some weird barely comprehensible idea in their head about photos, what you are doing, how the world works, what your motives are, etc. etc.
5. People who seriously don’t want their picture taken mostly because they are misbehaving (illegally for example) or are going to misbehave.

I will go with this from the reverse order of likelihood mostly because it’s the most serious even though unlikely and incidentally more interesting.

For number 5. Mostly these people won’t bother you if they haven’t already misbehaved because they don’t want to attract attention to themselves. At least not yet anyway. But if they did misbehave and they believe that you have caught a picture of this you now have a serious problem. Essentially no amount of talking is going to get you out of this. Nor will deleting the photo after the fact help you even if you are willing to offer such. You have become a witness (with or without the photo) and they are now going to treat you in one of 2 possible ways. The 1st would be to run away and hope that they will not be identified. The 2nd is they are going to take your camera (they wouldn’t believe that the photo was deleted anyway) and in the process are most likely going to at a minimum beat the holy’s snot out of you. That would be the lucky outcome. The unlucky outcome would be that you are dead and/or permanently maimed. So your options at this point are run and if that doesn’t/isn’t going to work defending your life. So if you are going to an event, where there is a likelihood of this happening and this is not part of your profession, seriously take this into account.

Number 4. I was in California with a friend of mine taking some photos at a cliffside beach. I was using a super zoom lens at the time which is not a particularly long lens but it is a very large looking lens. I call it a cliffside beach because this is precisely what it was. A cliff, which about 200 feet below it was a small strip of beach. To get down to the beach you had to take a winding trail. It was at the head of this trail that is the only place you could see that there is a beach down below. I and my friend were standing at the very top of the cliff. From there off in the distance, you could see the surfers but no part of the beach at all without seriously risking falling onto the beach. Mostly what I was taking pictures of were the seagulls that were catching the lift off the cliff and were only about 10 to 20 feet away. While I was doing this a man approached us and accused me of taking pictures of some woman which I at 1st presumed was his wife down on the beach in her bathing suit. As this guy was ranting and raving about supposedly violating her privacy we started to understand that this woman was not his wife. In fact, he did not even know this woman. He did not even have any particular woman in mind. It The fact that I had not been taking a picture of this imaginary woman nor could not have taken a picture of her even if she not been imaginary really did not matter to him. It occurred to both myself and my friend almost simultaneously that I was being accused of an imaginary crime to which there was not even an imaginary defense. At this point, the only real option was to smile politely, apologize, and move on. So if you run across a nut your best option is to just extricate yourself as quickly and painlessly as possible.

Number 3. These are people who have an almost pathological irrational fear of photos and photographers. The fact that you are taking these pictures in public and thus they have no legal right to complain doesn’t really come into their worldview. Sometimes it might be an extremely insecure woman in which case my answer is usually “sorry ma’am I did not take your photo but if that bothers you so much I will of course gladly take a photo of you and send it to you”. This usually confuses them and they will usually respond with “no I’m trying to say I did not want my photo taken” and I will respond with that I am so sorry I will then move along. This usually satisfies them that they have vented their spleen and accomplish their goal. The next is those that have a totally irrational fear of having their children’s photos taken. To them, I will say that I am sorry but their children are in a public space and if they believe a crime is been committed they are free to call the police and I will stay and personally talk to the police. If they threatened to get violent then I will offer to call the police myself. Many may disagree with this point of view as they believe that there are “children involved” and that this somehow makes it different. In reality, it does not, they are still behaving irrationally. This can be shown that these people are in fact irrational (and the rarity) that I have been taking photos for over 30 years in all kinds of situations and nobody has yet called the police on me. If you go to just about any public park in America there are people with children and people with cameras wandering all over the place. People with cameras in the parks are not the people that have children need to worry about. The police are well aware of this. The people they have to worry about are usually the people without cameras, like their coaches, teachers, babysitters, daycare workers, or other people that they would entrust their children with. And although this is a rarity that those people are a risk to their children that is the primary risk to their children. By the way, I’ve even been approached by people in the park and they have asked me to take photos of their children. There is a small subgroup of people who do have some personal and rational reason for not having their picture taken. Some religious belief for example. If this is the case they are bothered by your picture taking they will usually approach you and politely ask you to not take their picture and give you that rational reason. The polite thing, of course, at that time is to say “I understand, thank you very much for informing me of this” and point your camera in some other direction.

Number 2. This group is the ones you are most likely going to take a picture of. If you have a large DSLR they will sometimes approach you and ask you if you are a professional. Most often this is because they wish to separate you from a possible amateur. If you are professional they may want money for a signed photo release. They could also possibly want free photos for publicity. If you are possibly a photojournalist they are most likely interested in the publication so they can post in their social media network that they have been published. When they find out that you are just an amateur the mostly just relax and have fun with it. Getting attention out in the public is after all why they are doing this in the public in the 1st place. This group is the ones that are most likely to approach you and also less likely to have a problem with you.

Group number 1. This is the most boring group of all. They are for the most part just part of the background and as such won’t bother you or approach you. Not much to be said unless you need a photo release from any of them in which case you most likely have to make this just journalistic B footage of the background. And by the way chasing after somebody to get their “permission with all the associated information required” for a photo is more likely to be perceived as the weird guy with the camera than just letting them go. Unless you really “need” a photo release as part of the job it is usually not practical nor necessarily even desirable to chase after these people. This group, by the way, is the ones that most often approach me. They see my big camera and lens and assume that I know how to take good photos. I know this is kind of silly but that’s their perception. So more often than not they are asking me to take their camera to take a photo of them. I always politely agree and try to take the best photo I can.

A lot of people have made an issue out of taking photos of people in public. Truthfully this is rarely an issue. In 30 years I can barely count on both hands the number of times I’ve been approached by somebody that had an issue. In most of the time when I was approached it was just a friendly conversation about photography in general or because they did want me to take their picture and somehow get it to them later.

I’ve used most of the techniques described in this thread. Sometimes I’ve tried to have smaller wide-angle lenses with unobtrusive cameras. This usually does mean that you do have to get in their face. It is usually very difficult to get candid photos this way because of the observer effect. I’ve also used very long lenses. You can sometimes get very good candid portrait type photos that are isolated from the background this way. But my favorite technique is to use a medium length zoom lens and hang around the edges of the event. If you hang around long enough almost everybody starts to perceive you as just part of the background. This allows you to keep your head up, on a swivel, and your situational awareness at its maximum. You’re much more likely to see any trouble coming this way and simultaneously see a photo opportunity developing. You can take test photos to get your exposure, framing, and your focusing correct before the photo that you are anticipating. This allows you to get the snap photo much quicker and more assuredly. You can also usually get much more pleasing perspectives and perspective distortions.

If anybody does have a problem (which in my experience is extremely rare) then just point them to your very plain and benign Flickr site. This is one of the reasons I have a Flickr account. If someone wants the photo I just promised to put them up on Flickr and let them go get it. If someone needs to know what I do for my hobby I show them the Flickr account. This at the very least will usually bore them into a coma and people in a coma are usually harmless.

DAZ
Forum: General Photography 07-09-2017, 09:24 PM  
So you wanna photograph the Eclipse - what you need to know in (sorta) a nutshell
Posted By DAZ
Replies: 80
Views: 6,590
This is probably my final solar eclipse set up.


Pentax HD PENTAX D FA 150-450mm f/4.5-5.6 DC AW mounted on a Zeikos 77" 3-Section Heavy-Duty Aluminum Tripod with 3-Way Pan Head. On the front of the lens is Cokin Z-Pro Series 100mm Filter Holder with the LEE Filters 100x100mm Solar Eclipse Filter. The camera is a Pentax K5 attached via the HDMI port out to a Lilliput 7" Field Monitor mounted on a Sirui T-025x Travel Tripod positioned near the lens tripod. 2-foot cable release and shake reduction turned off. I did not use mirror lockup as it seemed to be steady enough without it and would be one more thing to screw up when I switched in totality to bracket exposures.

I experimented with multiple different setups before I came to this final set up. The following are some of the things I’ve tried:

Crossed polarizers. Crossed polarizers can be used as a variable (kind of like a neutral density) filter. The problems that led to this being rejected were, not nearly enough stops of filtering and a blue tint that was almost impossible to get rid of.

Stacked neutral density filters. With my 3 darkest neutral density filters I could get up to about 16 stops. This was minimally adequate but still, has several significant limitations. The 1st being 16 stops is near the minimum needed. It still makes it very hard to not only focus but totally washes out live view. This is also not adequate (as in not safe) to use the optical viewfinder. Stacking the filters also resulted in image degradation.

Trying to use the live view on the back of the camera was very difficult as you are facing into the sun. Even if you had an articulated screen it would still be very difficult as you want the tripod to be lower and it is still very awkward to view. Additionally, live view from the screen on the back of the camera eats up battery power extremely quickly.

Trying to mount the field monitor any place on the tripod that the lens was mounted on was very awkward and difficult. Essentially wherever I would try to mount it would always seem to get in the way. Mounting the field monitor onto the camera no matter which method I seem to use (tried several from mounting on top of the camera to using an additional bracket) was also awkward and caused additional problems that every time I would move the lens would also require a change in the field monitor. Also, the field monitor was too close to really view it while trying to move the lens-camera combination. Mounting the field monitor on a small tripod near the larger tripod worked much better and also reduced any wind sail affects/vibrations that the field monitor would produce onto the lens tripod.


Using the LEE Filters 100x100mm Solar Eclipse Filter was nearly ideal. This filter produces 20 stops of filtering. This allowed the lens to be stopped down to only f/5.6 at 450 mm with a shutter speed of 1/180 and ISO of 80. This produced an excellent exposure. I was able to photograph very small sunspots that were clear enough to make out and were approaching only a few pixels across.

Using the Cokin Z-Pro Series Filter Holder allows the filter pack to be taken off quickly and smoothly during totality. It can also be placed back on just as quickly and easily. The Lee solar filter also had an additional feature to the filter that helped with this. Around the backside of the filter on the edges is a little black foam gasket. This not only keeps out any stray light from the edges but also helps act like a little bit of a spring. The Cokin Filter Holder has a little bit of a spring action to it but this is mainly to hold the various filters snugly. Once you tighten up the screws there is very little additional spring action.

Some observations:

The Lee solar filter will get quite warm to the touch even in the anemic Northwest morning sun. I do not believe this will in and of itself hurt the filter but if you’re not aware you could be surprised and accidentally drop the filter when you pull it out of the filter holder pack. Additionally, it would probably not be wise to set it on a very cool surface until it has a chance to cool off.

Even with 20 stops of filtering the sun is so bright that there is still detectable reflective flair. This could be from 2 possible sources. The 1st being reflection of the front of the lens to the back of the solar filter and back in. As Pentax has put some of their best coatings on this lens I do not believe that this is the most likely source of the flair.


The next likely source for this a reflection is off the sensor to the back of the lens and back into the sensor. As even with these 20 stops the live view is still overexposed, I believe this is most likely the source of the flair. What this means is that it is best (in my opinion) to not shoot absolutely center of the frame. If all of the sun circle is off to the side of the center then the reflection will appear on the opposite side. This means that it will not only not interfere with the direct exposure but being off to the side can be dealt easily in PP if necessary.

With 20 stops of filtering, you may feel that you could use the optical viewfinder. Lee recommends against this and I concur. You might be able to get away with this for a few seconds but you won’t be doing this for just a few seconds. You will have to do this repeatedly for upwards of an hour. 20 stops are just not enough for this. Additionally, there still might be some leakage of ultraviolet light which you wouldn’t detect until it has damaged your eyes.

With this set up with shutter speeds of 1/180 or 1/250 exposures appear to be very good. Exposures of 1/125 and 1/90 also appeared to be good and did not give any blinking warnings in the live view. Reviewing these later on the computer I could see that they had at least one blown color channel. Even one blown color channel will make it next to impossible to set your white balance lie for white. Additionally, you want a little bit of head room for later PP adjustments of things like contrast and brightness. So it’s definitely better (if not imperative) to be a little underexposed.

I did consider going with a longer focal length than 450 mm. Early on I did experiment with an X1.4 and a 500 mm lens but concluded that the field-of-view was just too narrow on APS-C. It is too hard to keep the sun in the frame all the time and more difficult to have it off to the side and still in the frame (see above). Additionally, in totality, you probably will want to see much more around the sun so 450 mm appears to be about ideal.

When I mounted the lens on the tripod I found it worked much better to have the elevation handle forward. This not only kept it out of coming in contact with the center pole (in fact I didn’t have to raise the center pole thus increasing stability) but I found I had much more leverage. Having a three-way pan head was also much better than a ball head. I could much easier control one thing at a time instead of having to control all of them simultaneously. This was very important as you needed to continuously track the sun.

Having the field monitor on its own tripod allowed both tripods to be set very much lower and more stable. They were also easier to handle and you could sit in your chair and watch the monitor. One word about this. Is probably best not only from the point of view of batteries (for both the field monitor and the camera) to stay in live view continuously. Normally there is a limit of approximately 10 to 15 minutes before the sensor starts to heat up in the camera wants to shut itself down. Even though most of the heat is attenuated by the solar filter is probably getting more heat than normal which probably exasperates this problem. I do not believe that this will necessarily harm the sensor but you might be stuck having to wait for the camera to cool down at a critical time. With this in mind, it is probably better to set yourself up on a schedule of on and off (say 5 minutes on 5 minutes off for example).

LEE Filters 100x100mm Solar Eclipse Filter
Pentax HD PENTAX D FA 150-450mm f/4.5-5.6 DC AW
Pentax K5.
Zeikos 77" 3-Section Heavy-Duty Aluminum Photo & Video Tripod with 3-Way Pan Head
Sirui T-025x Travel Tripod
Cokin Z-Pro Series Filter Holder
Lilliput 7" Field Monitor

Linked below is the camera set up and an example full frame full resolution sun photo. Seeing was fair to good. There were a few high thin clouds in the area that I had to wait to pass but there was also forming a thin overall layer. This is why the seeing was only fair to good.


DAZ57187 -1 by Dean Zierman, on Flickr

Solar setup. by Dean Zierman, on Flickr

DAZ
Forum: General Photography 07-08-2017, 07:28 PM  
So you wanna photograph the Eclipse - what you need to know in (sorta) a nutshell
Posted By DAZ
Replies: 80
Views: 6,590
I've been practicing and trying different techniques. This is about my best so far, about a 50% crop. It really is annoying when you're subject won't hold still! Definitely still need to do more work. There won't be time to work out anything on the day it happens.


DAZ57163 -1 by Dean Zierman, on Flickr
Forum: Monthly Photo Contests 07-02-2017, 06:19 PM  
Ghosts Anew.
Posted By DAZ
Replies: 0
Views: 149


This is guerrilla art titled Anew. It appeared overnight in the park and was only there for a couple weeks before it was removed. The ghosts are those who came to view the sculptures and are from an in camera blend of 9 exposures.

Ghosts Anew. DAZ_4493 on Flickr.
Forum: General Talk 04-29-2017, 07:40 PM  
The Joke Thread
Posted By DAZ
Replies: 1,165
Views: 89,301
2 medical students were standing on the corner, waiting to cross, when they noticed an old man shuffling across the street toward them.

One medical student says to the other, “See how that old man is walking as he crosses the street. I bet he needs hip replacements.” The other medical student watches the old man for a moment and replies “No, from the way he’s keeping his knees together he most definitely needs knee replacement.”

About that time the old man had finally finished crossing the street to where the 2 medical students were standing. The 1st medical student says to the old man “Sir, we are 2 medical students and in the interest of furthering our medical educations would you please help us answer a medical question regarding your condition?” The old man nodded yes and the medical student said, “We couldn’t help but notice the way you were crossing the street, my friend here believes that you are in need of knee surgery but I, on the other hand, believe your problem is hip related. Could you please tell us what the problem really is?”

The old man looked at the 2 medical students and said, “Let me get this straight, you think it is a hip problem while the other one thinks it was a knee problem. Well, it looks like we are all wrong because I thought it was a fart!”

DAZ
Forum: General Talk 04-23-2017, 10:25 AM  
The Joke Thread
Posted By DAZ
Replies: 1,165
Views: 89,301
Patient goes in to visit his doctor for a physical at 60. After the physical, the patient asks, “Well Dr., do you think I’ll live to 80.”

Dr. looks at the chart and says “I see from your chart that you don’t smoke”.

Patients says “Oh no, I have never smoked”.

Dr. says to patient “Do you drink?”.

Patient says “I definitely don’t do that”.

Dr. asks “Then do you chase women?”.

Patient answers “I most definitely would never do that”.

Dr. studies chart and then looks up at the patient in says “well, if you don’t smoke, don’t drink and don’t chase women then why do you want to live to 80?”.


DAZ
Forum: General Talk 03-26-2017, 04:27 PM  
Questions on Pepper Spray
Posted By DAZ
Replies: 23
Views: 1,150
Below are some links pertaining to pepper spray. There are links on how to compare them, how to use them, some of the drawbacks of the use of them, and where to buy them. Because of the significant drawbacks pertaining to the use of pepper sprays I don’t carry or use them. But then again I also live in a place where I can choose from a plethora of options. Considering that pepper spray may be the best available option it is still probably recommended to carry a backup option on your belt in addition to just the pepper spray. I lean toward a tactical defensive flashlight. They can be small and unobtrusive and used in a similar fashion as a coup baton. This is in addition to being very handy is just a flashlight. By the way, just because someplace like Amazon sells it in no way proves that it is legal in the location that you live. Please check the laws where you live that not only for the possession of but also on how to legally use these items.


Police Tested | DefenseDevices.com

Keychain Batons - The Home Security Superstore

What is the Best Pepper Spray You Can Buy in 2017? Our Top 3 Recommendations

Cheaper Than Dirt

Why You Want to Avoid Self-Defense Sprays - USA Carry

Non-Gun Weapons: Carried and Improvised

Use of Lethal and Non-Lethal Force

Use of Lethal and Non-Lethal Force


DAZ
Forum: Monthly Photo Contests 02-09-2017, 04:20 PM  
Into the light. Where the camera looks and lives.
Posted By DAZ
Replies: 5
Views: 358
Thanks. I hadn't thought about all the people. I thought it was the camera that made it different.
Forum: Post Your Photos! 01-28-2017, 11:50 AM  
Best of 2016 Oregon sunset
Posted By DAZ
Replies: 4
Views: 469
Sunsets and sunrises are like are like eye candy. Good as long as you don't stare at (or eat too much) too long.

DAZ
Forum: Post Your Photos! 01-27-2017, 04:18 PM  
Best of 2016 Oregon sunset
Posted By DAZ
Replies: 4
Views: 469
It is amazing the differents just 12 minutes can be.

DAZ56579 -1 by Dean Zierman, on Flickr
Forum: Post Your Photos! 01-27-2017, 03:53 PM  
Best of 2016 Oregon sunset
Posted By DAZ
Replies: 4
Views: 469
DAZ56592 -1 by Dean Zierman, on Flickr
Forum: Monthly Photo Contests 01-08-2017, 11:45 AM  
Into the light. Where the camera looks and lives.
Posted By DAZ
Replies: 5
Views: 358
Forum: Photographic Industry and Professionals 12-14-2016, 07:40 PM  
Call For Encryption
Posted By DAZ
Replies: 23
Views: 1,417
The photographers who wrote this open letter on more right than they realize. Not only are features like encryption desirable but ultimately they are going to be absolutely necessary in ways beyond belief today.

Many have pointed out various problems from a technical standpoint but these are just minor nuances that can and ultimately will be overcome. Things like key management have and are now being worked out. The concept that quantum computers will instantly render all encryption obsolete is untrue. Quantum computers can be used in theory to attack certain public/private encryption systems. This mostly has to do with key management and key sharing. Encryption systems used on files and for the actual data that is being transmitted are really not any more susceptible to quantum computer attacks than general computer attacks. It is the key sharing part where the key is shared using public/private encryption systems that is vulnerable. Having said that new public/private encryption systems are already in the works and will likely be in use before quantum computers are widely used.

Encryption gives you many things beyond someone prying into your information. It gives you authentication and protection against outside influences.

At one time encryption was thought to be local. That is to say you would encrypt the file locally and if you wished you could transfer the files. You would then have to share the key via some secure means. This is the key management part of the problem. Public/private encryption systems have helped alleviate this problem. Today they are talking about end to end encryption. The concept here is someone would send a file from point A to point Z that this information would be secure from point B to point Y for many outside intrusions. This is an old model that is already outdated by the concept of “the Internet of things”. The mantra in the future will need to be “encryption all the time at all levels for all things”. This will be required to stop the entire system from collapsing from outside influences.

As more and more things become interconnected there becomes more and more points of possible intrusion. For example if your photo files are encrypted and somebody does take your SD card if you do get the files back (assuming you have a good encryption system) you can be assured that your files have not been manipulated. In addition if the operating system on your camera is encrypted when you get your camera back you would be confident that no back doors have been planted in your camera. In turn you could also be assured that no back doors would be finding their way onto your computer. In this particular case the reason for taking your camera had nothing to do with the pictures you might have taken but only as a means to get to your computer.

For the Internet of things to work encryption will have to be universal, embedded in all things, and essentially invisible to the user. Everything that is connected to the Internet of things even something as unimportant as your doorknob on your house could be a means to get access to something else that is much more important. This may all sound paranoid but I can assure you that it is not. The attacks might not even be against you personally but some organization you work for or have some contact with. It would not necessarily even need to be state-sponsored as somebody may want to get access to some bank account for example.

There are some in law enforcement and government intelligence organizations that believe that encryption is the beginning of the end and what will follow is chaos. This is obviously untrue as their ability to look at the world electronically and so brightly is a relatively new phenomenon in history. The world worked before and as this temporary brightness of their ability to observe fades the world will continue to work as before. But if there is not universal encryption at all levels for all things at all times the Internet of things will collapse in chaos without it. So as the Internet of things is most likely inevitable (and only possible without collapsing in the chaos with encryption) than much more security in encryption is also inevitable. The sooner and more thoroughly this is embraced and accepted the less likely organizations will be drowned by the incoming tide. Some at many levels of government believe they can hold back this tide but not only will he not be able to hold back the inevitable but there attempts are doing severe damage (Sony, Yahoo, etc.) to those they say they are trying to protect.

At the time most companies do much of this in-house. But with it becoming more universal many companies/open-source organizations will spring up and will produce essentially modular products that can relatively easily and cheaply dropped into just about any product. To some extent this is already happening. Eventually there will be so many levels of encryption that nobody will even bother to try to crack it. They will of course attempt the rubber hose and lead pipe methods but even these will ultimately fail is the end user won’t even have access to the keys that they desire.

So most definitely encryption is coming, (and a heck of a lot of it) but no matter how fast it comes it can’t come fast enough.

Dean
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