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Forum: General Talk 2 Days Ago  
Just Got Progressive Lenses
Posted By dlhawes
Replies: 11
Views: 717
Can't stand'em, myself. I rely heavily on my peripheral vision, and "progressive" lenses give the effect of looking through a little porthole. I've got one pair of glasses without any extra magnification at all to correct astigmatism & mild myopia, just for use with the OVF - glass lenses, not plastic, because of the difference in the refractive index. And for general use, a separate pair of bi-focals. Only problem with bi-focals is that you have to crane your neck looking down to see where your feet are when you're on steps, rocks, etc. - of course that's not a problem with my special photography glasses.
Forum: Pentax K-1 & K-1 II 3 Days Ago  
"Card is not formatted", except it is/was
Posted By dlhawes
Replies: 19
Views: 512
As I recall, "eject" comes from the 3.5" floppy drives and Windows 98. That "mount" and "dismount" (inappropriately coined) terminology comes from IBM mainframes that used nine track tape drives that were as big as refrigerators. The tapes had to be physically mounted in the drives. There was always a running battle between the linguistic purists who pointed out that no one had actually mounted themselves on top of the drives, and hence, could not "dismount" - and those who thought "dismount" was easier to say. A lot of systems programmers in those days (before the invention of "computer science") had a bit of a warped sense of humor, being mostly social deviants, and liked to misuse words in a way that gave them the feeling of being members of an exclusive group of insiders who knew the secret codes. By the way, the 5.25" (really floppy) floppy disks didn't need an "eject" command because there was no buffering of data that needed flushing.
Forum: Post Your Photos! 4 Days Ago  
Landscape The Blue Ridge living up to it's namesake.
Posted By dlhawes
Replies: 8
Views: 142
Howdy, neighbor! (from Fauquier Co.)
I noticed that haze, too, coming back from W.Va. the day before that - wildfires' smoke from out west, they say on the news.
Forum: Pentax DSLR Discussion 07-18-2021, 07:23 AM  
Best Pentax Outfit for Landscapes?
Posted By dlhawes
Replies: 55
Views: 1,918
I couldn't help wondering whether you've gone through the autofocus fine adjustment ("calibration") procedure? If it works great on the KP but not on the K-1, that suggests that it's the relationship between the camera and the lens that's at fault, not either one specifically.

Also, have you considered the use of a teleconverter?

By the way, having similar interests, myself, I'll tell you what I use. I ditched the KP for landscape use - I mostly use it for birds, flowers, bugs (macro) and indoor use, though it's formidable with the 11-18 DA* on it. But for mountains, woodlands, and such, I use the K-1 (original) with the following:
Irix 11mm f/4.0;
HD Pentax-D FA 15-30mm F2.8 ED SDM WR;
HD Pentax-D FA 24-70mm ED SDM WR Lens;
HD Pentax D FA* 70-200mm f/2.8 ED DC AW;
HD Pentax D FA 150-450mm; and
Pentax DA 560mm F/5.6 ED HD AW.
Obviously, I would be fairly selective depending on where I'm going, and seldom take more than three lenses with me at a time, only one of which would be one of the longer jobs (too much weight otherwise).
Forum: Post Your Photos! 07-18-2021, 07:16 AM  
Landscape There be Monsters
Posted By dlhawes
Replies: 21
Views: 610
Yes, I was always told that when you cross the line into No'th Ca'lina, you got to watch out for the bonsters. "Stay in Vahdjinnia, bwah, so's you don' git et!", they said.

Great picture, by the way. I mean, a really, seriously good picture. I especially like it because it doesn't follow standard "rules" of composition - the "leading lines" take you to the edge of the picture, and it's chaotic. At the same time, it represents a natural process really well, since, as you observe, Rhody branches don't obey the rules of composition, and all those twisty, turny branches have a way of sucking your attention into the background, which is interesting in itself. I really love the contrasting tones from front to back.
Forum: Pentax DSLR Discussion 07-18-2021, 07:08 AM  
Do you ever take off your CPL filter?
Posted By dlhawes
Replies: 50
Views: 1,316
I use UV filters all the time and almost never take 'em off. I have a CPL for a couple of lenses, but, echoing what others have said, rarely find a good use for it and I find that its effects are not worth the bother. The only time I've found it really useful was when I was taking pictures in a parking lot full of antique cars with all sorts of shiny stuff on 'em in harsh sunlight. Even then, it didn't do that much.
Forum: Lens Clubs 07-18-2021, 04:45 AM  
300mm plus Lens Club: discuss your long lenses
Posted By dlhawes
Replies: 36,571
Views: 3,773,331
I've been all through Roger Peterson's bird book, and I'll be dogged if I can find anything that looks like that one. I've got pictures of some I've seen in my own yard in Virginia that I think are the same kind of bird, but I have no idea what they are.

Anybody have any clue?

---------- Post added 2021-07-18 at 04:47 AM ----------



I thought you had to go to Baldy-mo to see that one.
Forum: General Talk 07-18-2021, 04:26 AM  
OO-sumo
Posted By dlhawes
Replies: 3
Views: 332
I thought T'fuji did as well as either Kisenosato or Kakuryū up against Hakuho. I'm betting he gets his Yokozuna after this.
Forum: Digital Processing, Software, and Printing 07-16-2021, 07:26 AM  
RAW processing
Posted By dlhawes
Replies: 31
Views: 1,056
I don't do a lot of super-artistic stuff in post processing, so some of the time, I find the Pentax version of Silkypix does everything I need. I've tried a whole lot of different software packages, free and unfree, including from Cyberlink, Corel, basically everything I could find other than anything from Adobe whom I do not patronize. My go-to software is Affinity Photo, mainly because it does as well as anything else functionally, but is easiest to use and least cryptic. (It will do all those artsy-fartsy things, I just don't bother with 'em.)
Forum: Pentax K-3 III 07-16-2021, 02:20 AM  
Practical Impacts of new K3-III capabilities on Lens Selection - Coatings & Apertures
Posted By dlhawes
Replies: 6
Views: 552
Seems a shame to get rid of the FF lenses; I've found they work just as well on APS-C, so I've only got a couple of APS-C lenses, and routinely use FF lenses on the KP. On the one hand, it's a waste for all that light coming in that won't hit the sensor; on the other, you can't sell used lenses for an amount of money that really represents their true value, which means if you sell them at a loss, you've wasted your money. The only way you're going to get your money's worth out of a lens will be to use it. I don't have or use most of the lenses you've listed, but those I do have are terrific lenses. Why not at least identify some favorites and only liquidate the ones you never actually use?

By the way, I certainly approve the purchase of the DA*11-18 - that's one of my sharpest, and worth having just because it's a terrific lens. As is the 100mm macro, but you know that's an FF lens, right? And I'd certainly keep the 300mm. The use of focal length to describe a lens is somewhat anachronistic, all that really matters is the angle of view a lens will give you on a particular camera, and any 300mm lens is still a 300mm lens on any camera. And whether the crop factor of an APS-C lens is restricting the light received or the outer circle of that received with an FF lens makes no difference in defining what light hits the sensor. Either 300mm lens will give you a viewing angle of 5.4 on the APS-C camera, I think. I'd keep the faster lens, myself.
Forum: Pentax SLR Lens Discussion 07-15-2021, 12:48 PM  
Conversion to screwdrive seems to have fixed SDM (?)
Posted By dlhawes
Replies: 43
Views: 1,954
Update on the 55mm SDM lens - it happens that I've got an older 1.7x TC that was also sold as a "manual focus lens adapter" - get the lens "tuned in" pretty well by eyeball and manual focus, then hit the AF button and the TC does some "fine tuning". Also get macro capability out of that combination. And, since I wouldn't be using a 55mm lens for birds in flight or sporting events, the time it takes to execute the preliminary manually focus isn't a problem.
Forum: Pentax DSLR Discussion 07-15-2021, 12:43 PM  
Any birth photographers have advice?
Posted By dlhawes
Replies: 23
Views: 766
Ah, so that's it - suppression of evidence supporting a claim of malpractice. The "legal reason" isn't that there's some law that could be violated in the event of birth photography, but a reaction out of fear of lawsuits against negligent physicians. I still don't think they've got the authority to do so, because it's not just a real-property issue but a question of who's in charge? Most of the legal principles I'm aware of say the patient is in charge - he's the employer, after all. I can imagine the lawsuit that would result from a hospital trying to tell a father that he can't take pictures of his wife and child-to-be at birth-time when they call "security" to have him removed from the premises. No longer practicing law, myself, but it almost makes me salivate, just thinking about it.
Forum: General Talk 07-15-2021, 12:28 PM  
Got vaccinated today. Anyone??
Posted By dlhawes
Replies: 1,176
Views: 48,284
Thanks for the article, "The quest to find genes that drive severe COVID", @Rondec, that's really interesting and something I hadn't known about.
Forum: Pentax DSLR Discussion 07-14-2021, 02:09 PM  
Any birth photographers have advice?
Posted By dlhawes
Replies: 23
Views: 766
I'd be interested to know what kind of legal reasons they could possibly have - my first thought is that the legality goes the other way, and that they don't have the power or authority to do that in violation of the client's wishes.
Forum: General Talk 07-14-2021, 01:57 PM  
Got vaccinated today. Anyone??
Posted By dlhawes
Replies: 1,176
Views: 48,284
All very good points, thank you, though I think there are problems with the article you cited. First, there have never been any long term studies of the sort that could either prove or disprove the hypothesis. I have explained why it can take a really long time for symptoms to become noticable. Secondly, aluminum salts is the only adjuvant they discuss, and omit references to the neurotransmitter amino acids that are usually included. It does mention the fact that people vary a lot in the degree to which their immune system may be hyper-aggressive, which as it states, will make it very difficult to sort out what's really going on.

I think the problem here is that some folks may have rushed through what I actually said and assumed that I'm "anti-vaccine". While I agree that the majority should get one of the available vaccines, there is a limited group of people who should not have the vaccine for medical reasons. I think that the fact that almost all the "side effects" that have been reported are autoimmune disorder symptoms is telling. People who have that genetic characteristic have way too aggressive an immune system already and (1) don't need the vaccine, because their immune systems are already more than capable of producing the antibodies needed to allow them to remain asymptomatic (which is all the vaccine does, by the way, it doesn't keep the virus out of the body, what it does is provide a method of dealing with it when it does penetrate the outer defenses); and (2) the immune system triggering event the vaccine represents can be dangerous to such people (e.g., people with autoimmune disorder coming down with Guillian-Barre as a result of that triggering event). That may not apply to people who are taking various drugs and monoclonal antibodies designed to suppress their immune responses generally (e.g., things like Humira and methotrexate), who probably ought to be treated as normal people for vaccination purposes.

Oh, and the real killer isn't the aluminum salts, which do have a deleterious effect on metabolism of calcium (which is obviously an issue for autoimmune people, or it wouldn't have been used as an adjuvant). The real killer is glutamate or salts of glutamic acid. I noticed that not all the various flavors of vaccine contain glutamate, and I would predict that those will result in fewer serious side effects overall.

One more observation: the fact that I cited two articles doesn't mean that's all the reading I've done. I've done quite a lot of research on this topic over the past ten or fifteen years, since I happen to be afflicted with autoimmune disorder, myself.
Forum: Pentax DSLR Discussion 07-14-2021, 02:52 AM  
Any birth photographers have advice?
Posted By dlhawes
Replies: 23
Views: 766
Having participated in five such events (not involving surgery), myself, my observation is that the picture you want is the one where the mother has fully recovered from the anaesthesia, has the sheets pulled up, has the baby on her breast, and everyone looks happy. You don't need pictures of a bloody half-groggy woman. Surgery is not pretty.
By the way, I aways avoided the use of a flash when photographing children. I don't like it flashing in my eyes, and I'm thinking they won't like it much either, although too young to complain.
Forum: General Talk 07-14-2021, 02:40 AM  
Got vaccinated today. Anyone??
Posted By dlhawes
Replies: 1,176
Views: 48,284
Let's see... I'm "anti-science" because I rely solely on refereed papers published by professors and scientists who actually do the studies they're reporting on, as published by the National Institutes of Health, rather than the popular media. Hmmm.
Forum: Pentax SLR Lens Discussion 07-14-2021, 02:28 AM  
Conversion to screwdrive seems to have fixed SDM (?)
Posted By dlhawes
Replies: 43
Views: 1,954
That's the most plausible hypothesis I've seen, but I reckon we'll never know. But my decision isn't solely based on that particular failure. There's also the repeated incidents of refusal to honor warranties based on false claims of "probable impact damage", and the fact that it took me two years (and serious threats of legal action) to get them to deliver a working copy of the 560mm. I don't want to do business with a company whose attitude toward customer service is, "Make me."

When I pay for a product, it is not my intention thereby to buy into a wrestling match with the manufacturer, and that's all I've ever gotten from Ricoh, with one exception. (They did fix the K-1 I'd bought that had a manufactured-in problem right quick and without any argument, but that's an isolated case.)

I vote with my dollars, and I don't buy things from people who rip me off repeatedly. Once, I can forgive and assume "probable user error", but two or more looks to me like a pattern of intentional misconduct.
Forum: Pentax SLR Lens Discussion 07-13-2021, 09:07 AM  
Conversion to screwdrive seems to have fixed SDM (?)
Posted By dlhawes
Replies: 43
Views: 1,954
Never mind, it was not a permanent solution, the lens' AF system is now dead, apparently. I agree about spending money on SDM lenses. Since this lens was repaired by Precision as Ricoh's agent, and they apparently replaced a defective part with another, it confirms my earlier decision never to trust Ricoh at all about anything ever again - they're on my "do not buy" list.
Forum: Pentax K-5 & K-5 II 07-12-2021, 12:29 PM  
How to extract firmware from SD card
Posted By dlhawes
Replies: 8
Views: 459
"Extract the binary" means to use a program like WinZip to decompress the file structure encoded within the firmware distribution file.

---------- Post added 2021-07-12 at 12:32 PM ----------



No need for all that, just start off by downloading the distribution file to a disk in your computer and unzip it there. Then stick the SD card into the computer's port and copy the binary file to the parent directory of the SD card (e.g., "L:/" or some such - should have a folder called "DCIM" in the same parent directory). Just leave the original on the computer in case you ever need it again.
Forum: General Talk 07-11-2021, 04:14 AM  
Got vaccinated today. Anyone??
Posted By dlhawes
Replies: 1,176
Views: 48,284
I tend to be suspicious of "articles" containing pre-digested information. And some are paraphrasing what other articles said - it gets to be like the children's game, "telephone".

However, the main issue discussed in these is the credibility of the researcher (if people don't like the message these days, they don't attack the message, they assail the credibility of the messenger. If he's a bad person, then the information must be suspect.) So I don't form opinions based on "articles".
That said, there are two issues I think ought to be considered. First, I'd point out that there are adjuvants and then there are adjuvants. They don't all work the same way. The worst ones for people with autoimmune disorders are salts of glutamic acid, an amino acid that functions as a neurotransmitter. Aluminum salts work because they affect the metabolism of calcium and magnesium, metals that play a role in the immune system functioning (people with autoimmune disorder are often plagued by muscle cramps due to the failure to metabolize calcium and magnesium correctly - the solution is to take supplements of these minerals). Since glutamic acid is the primary excititory neurotransmitter in the brain, the effects can be immediate and serious. Which gets me to point number two: all adjuvants that are added to vaccines are designed to over-stimulate the immune system in a localized and controlled way in order to make sure the immune response is triggered. Thus, though they work differently, they all can create problems for a person with autoimmune disorder. And here's the kicker: autoimmune diseases start off by the "killer T-cells" attacking individual cells in an organ that have certain attachments to the cell wall (most commonly caused by a complex polysaccharide found in red meat). The immune system learns to identify that kind of cell as "non-self" or "foreign protein", and begins systematically destroying the organ that contains that kind of cell. If it's the pancreas, the result is diabetes. But you can see that this is a gradual process that starts out with an attack on one cell and eventually "snowballs" as more and more cells are attacked. Thus, a person may have an autoimmune disease and not know it for thirty years because it takes a long time for the symptoms to be noticable, much less severe enough to raise a concious need for medical care.


So isolating aluminum salts for study seems to me to be a way of dodging the issue because that's not the most dangerous (and probably the least dangerous) adjuvant, and it ignore the long term effects of such chemicals in the formation of autoimmune diseases.

---------- Post added 2021-07-11 at 04:31 AM ----------



How many people do you know who wear N95 masks routinely? I only know two such persons, one is my dentist and the other my regular physician. And keep in mind that a "mask" is not the same as a "respirator". I use a respirator fitted with N95 filters to mow my grass. I don't know anyone who uses one other than that. So I'm sure you're correct about that.

However, Lots of people are wearing things like bandannas and home-made masks. I submit that the popular usage is similar to the behavior of people who wear amulets - they think some magic is going to protect them from harm. And even if they work to some degree (the best estimates I've found for the popular choices puts it at three percent effectiveness), they don't protect the wearer, but do keep the wearer from sneezing or coughing on other people's faces. The same effect as what one used to be taught by parents as a child, take your handkerchief with you and remember to cover your mouth and nose when you cough or sneeze. Actually, given the difference in pressure applied to the cloth protectant, the handkerchief is probably a whole lot more effective than what most people are wearing. I recall what Arthur C. Clark said (reinforced by L. Ron Hubbard's views) that the average person can't distinguish between magic and science.
Forum: General Talk 07-10-2021, 01:35 PM  
Got vaccinated today. Anyone??
Posted By dlhawes
Replies: 1,176
Views: 48,284
Here's an example of the information available from the experts:
'ASIA' - autoimmune/inflammatory syndrome induced by adjuvants - PubMed
The autoimmune/inflammatory syndrome induced by adjuvants (ASIA)/Shoenfeld's syndrome: descriptive analysis of 300 patients from the international ASIA syndrome registry - PubMed
People always complain about other people rejecting the information from MSNBC and CNN using the phrase, "ignoring the science", as though the broadcasters had some kind of handle on that. I find I get better information from actual scientists who have actually studied what they write about. PubMed is a very good source of information. I get bullied a lot by the mask enthusiasts because I don't buy CNN's version of "science". I'll bet there are people wearing jade amulets to ward off the evil spirits, who think that's "science", too.
Do a "google search" (I prefer duckduckgo) on the phrase, "asia vaccine autoimmune" and see what pops up from legitimate scientists.
Forum: Pentax Medium Format 07-10-2021, 07:09 AM  
Buying a Pentax 645Z in 2021
Posted By dlhawes
Replies: 176
Views: 7,997
"Mega pickles"!!! I'll get some mileage out of that one!

You're right, of course, but things like convenience, price, and availability of good lenses are factors to be considered, too. Everything's a compromise of some sort, I reckon. Just a matter of personal priorities.
Forum: General Photography 07-10-2021, 07:03 AM  
comments and opinions needed ASAP Phoenix trip Grand Canyon and Ball Games - thanks
Posted By dlhawes
Replies: 111
Views: 2,079
1. I don't fly at all, though I'm sure I wouldn't have any trouble getting her OK'd for it. Last time I looked it up, the Fed Regs don't recognize animals other than dogs and miniature horses as "service animals", and allow airlines to do what they want with "comfort animals". But I'm kind of likely not to survive an airline flight, as my medical condition can change rapidly. I need to stay on the ground in case I need to get to a hospital quickly.

2. I tell people she's a "pit-fox bull-hound"; the sign at the spca said, "mixed terrier". Her only real problem is that she's a bit too friendly and too excited to meet new people. Probably the hardest thing for her to learn was to sit still by my side and wait for the command, "go say hi" when we encounter dog lovers at Petco. And she wants to be a lap-dog, but is too big and heavy for that. Pit bulls are probably the friendliest, most loving, and gregarious dogs I've ever encountered. Now, I probably lucked out in my choice, as I got her as a small puppy, and she's turned out to be a wonderful dog, and I think the genetic admixture is a bonus, because a full-blooded pit bull would probably be too headstrong to be a useful service dog.

3. Absolutely, the humans need the training probably more than the dogs do. The only way to control a dog is to have self control, and the only way to discipline a dog effectively is to have a lot of self-discipline. Two characteristics that most people seem to lack. I'm thinking of Woodhouse's "No Bad Dogs" - just bad owners. And working a working dog requires more self control and self-discipline than managing an ordinary pet. Well illustrated in the TV show, "Dog Whisperer" with Cesar Millan.
Forum: Pentax Medium Format 07-10-2021, 06:49 AM  
Buying a Pentax 645Z in 2021
Posted By dlhawes
Replies: 176
Views: 7,997
As the medium format camera the thread is about. The 5DS-R is basically a medium format cameras in a DSLR, 50+Mpx.
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