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Forum: Pentax Camera and Field Accessories 12-01-2017, 02:39 AM  
Struggling to find a cheap, good large backpack
Posted By rrstuff
Replies: 26
Views: 914
oh but that's too easy! I can just walk into the store and pick up a tamrac anvil 17. There's no fun in that. I need to get a BGN grade of a previous year's model on keh with 20% sale. Preferably on a card with cashback.

---------- Post added 12-01-17 at 03:40 AM ----------



Thanks. How did they grade it? Do you think their conservative rating for lenses holds up for accessories?

---------- Post added 12-01-17 at 03:43 AM ----------



What did you end up getting? There is always the cotton carrier.
ref.














You Tube





---------- Post added 12-01-17 at 03:47 AM ----------



The padding looks pretty good on the escape 2.0. With 50% discount that's actually very reasonable for this kind of backpack. is there a code for 50% off or did I miss the sale?
Forum: Pentax Camera and Field Accessories 11-25-2017, 09:51 PM  
Struggling to find a cheap, good large backpack
Posted By rrstuff
Replies: 26
Views: 914
I like the ruggards, particularly the harness. My pointof concern is the tripod mount. It seems that the fasteners only reach to about 50% of the height, so I am worried it might fall out.
Forum: Pentax Camera and Field Accessories 11-24-2017, 11:33 AM  
Struggling to find a cheap, good large backpack
Posted By rrstuff
Replies: 26
Views: 914
Guys, thanks. This is helpful. Also I appreciate the picture with 150-450, and the information on which dividers come out from the backpacks. I saw many people mentionining lowepros flipside, the tamrac 5x and manfrotto off road hiker are new to me, I will check them out.

- am doing some 5-6 mile hiking with it, so water space would be nice.
- with 200-500, 12-24, 50/1.8 kit, with water, headlamp, vanguard 263ab tripod

---------- Post added 11-24-17 at 12:35 PM ----------




Thanks! I was looking at the canon, but it seemed to small. For the off road hiker 30l - it seems that there is just a small padded divider for the dslr + lens, and the rest is just a regular backpack?

---------- Post added 11-24-17 at 12:37 PM ----------



Thanks! I like that tamrac line, I am looking into the video reviews right now. I found a used ex condition 8x for $75.
Forum: Pentax Camera and Field Accessories 11-24-2017, 03:12 AM  
Struggling to find a cheap, good large backpack
Posted By rrstuff
Replies: 26
Views: 914
hi,

has anyone spotted good deals on a large camera backpack for hiking? I am trying to hold a 200-500mm lens (27cm long) attached to a camera body, and one that has a solid tripod mount.
Any suggestions?
Forum: General Photography 10-21-2017, 02:07 AM  
NASA released the Hubble Messier catalog on Flickr and wow, amazing
Posted By rrstuff
Replies: 10
Views: 606
Show it to anyone who says equipment doesn't matter in photography.
Forum: Pentax Q 10-10-2017, 10:52 PM  
Anybody hear about this metabones adapter? f/0.666???
Posted By rrstuff
Replies: 4
Views: 711
There were a lot of tests when they first came out a few years ago. Reviews were good.
Lens Rentals | Blog
Forum: Accessory and Memory Articles 10-10-2017, 10:46 PM  
3D drawing of FA 24-90 lens hood
Posted By rrstuff
Replies: 5
Views: 646
3D printing will not give you the same quality, especially one that is cheaper than buying a hood from ebay, or a third party manufacturer, e.g. JJC.
Forum: Post Your Photos! 10-06-2017, 12:18 PM  
Landscape DXO Prime noise reduction is incredible
Posted By rrstuff
Replies: 1
Views: 273
Same shot, with 30s, ISO 2000 and standard noise reduction. There are some smaller stars lost, but it wouldn't be obvious if the pictures weren't side by side. this must be the only usable image at ISO 51200 I ever got.
Forum: Post Your Photos! 10-06-2017, 12:14 PM  
Landscape DXO Prime noise reduction is incredible
Posted By rrstuff
Replies: 1
Views: 273
ISO 51200, 5s exposure. I am pondering a full frame, but I am getting more and more convinced that APS-C is just good enough...

Photo in arches NP. Utah.
Forum: Pentax SLR Lens Discussion 05-05-2017, 03:00 AM  
The Neptune Convertible Art Lens System
Posted By rrstuff
Replies: 20
Views: 2,080
Why not just get a real deal soviet lens? ebay is flooded with them for a significantly lesser price. There is a polish service, allegro.pl, which is an ebay like auction site and it should have a lot of soviet lenses too.
Forum: Pentax SLR Lens Discussion 05-04-2017, 11:38 PM  
The Neptune Convertible Art Lens System
Posted By rrstuff
Replies: 20
Views: 2,080
I could see a point if the fact these three share component would make very good lenses very inexpensive. At $600 there are some good competitors with autofocus, especially on the used market, so I will pass. Then again, I don't think I liked a single product by this company, so I am clearly not a target.
Forum: Pentax K-1 05-04-2017, 11:28 PM  
K-1 Auto-focus issue?
Posted By rrstuff
Replies: 25
Views: 2,654
Were you changing lenses in dusty conditions?

If you have dust on the AF sensor or the mirror, it could refract the light and throw the focus sensor consistently. Do a test and see if some points work and others don't. Then take a look at the mirror and AF sensor and see if you see any dirt on it. Similar thing happened to me on a k-3 where at some point off center focus points didn't work very well. I later found out some of the off-center AF points work well other don't. Then I read that dirt on the sensor could be a reason, after long long research. I will be cleaning the camera this weekend to confirm this hypothesis.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 05-01-2017, 12:33 AM  
A cheap long telephoto setup with good autofocus, options.
Posted By rrstuff
Replies: 5
Views: 729
Guys, thanks for all the suggestions and sorry about the delay. I had to catch up on some work and didn't login here for 3 weeks.

I decided to struggle a bit with da-l 55-300 and see what are the limitations. My conclusion is that it can work, although I would like something ~2x longer, and something sharp wide open. But 55-300 will do for now.

Once I figure out what are the most important factors in birding I will jump for a super telephoto lens and maybe a body to match. What I learned that K-3+55-300 can work, although there will be some missed shots. I might get better with time. As of now it seems important factors in, rough order, seem to be: lighting, focal length, steady hands, AF depth-tracking, buffer size, FPS, lens sharpness, high ISO noise, AF tracking, sensor resolution. I will spend a few more sessions and see if the list will get reshuffled.

Here are some shots from my first-day birding, K-3 + 55-300 DA-L, mostly 300mm F8, iso 400-1600, shutter 1/2000-4000, hand holding, but in low position.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 04-10-2017, 01:41 AM  
A cheap long telephoto setup with good autofocus, options.
Posted By rrstuff
Replies: 5
Views: 729
Hi all,

I am thinking of what are the options for getting a camera with good tracking AF. I typically shoot pictures of static subjects, but I am running into trouble with using k-3. Every review on the internet says that canon and nikon are ahead in AF tech. I am looking for a 300mm F4 options, but given pentax pricing, it's actually cheaper to buy an old canon/nikon body and a comparable lens.

Here are some things I am considering, all around $750, or a price of a used DA* 300mm F4:
- E-M1 + 50-200 f2.8-3.5 (already have the adapter), apparently very solid with new firmware
- 1d mk ii + 300mm f4 L non is
- D7000 + sigma 100-300 f4
- D300s + sigma 100-300
- 7D + 55-250 STM

Any thoughts? Am I missing some better options for the price?
8mpix and 1.3x crop won't be a problem, since I will keep k-3 for everything else.
Forum: Pentax SLR Lens Discussion 04-08-2017, 12:45 PM  
To 3D print a PK mount?
Posted By rrstuff
Replies: 34
Views: 1,440
btw. if anyone wants really high quality lens elements for projects, i stumbled upon this:

Olympus Zuiko Digital 50-200mm f2.8-3.5.
Forum: Pentax Camera and Field Accessories 04-06-2017, 12:47 PM  
Tripod under 200$ suggestions
Posted By rrstuff
Replies: 19
Views: 1,046
I got a vanguard 263AB, which works very well and has macro arm, for example. It's quite heavy though.

MeFoto has their daytrip tripods that are very small. You might like that one.
Forum: Pentax SLR Lens Discussion 04-06-2017, 12:06 PM  
To 3D print a PK mount?
Posted By rrstuff
Replies: 34
Views: 1,440
You could print anything, if you choose all the dimensions correctly. M42/M39 mounts would be difficult in plastic, because the threads wouldn't last very long, and they would need to be produced after printing. CNC milling and metal would be a better choice, because plastic shards will likely chip off over time and land inside the camera, on the sensor etc. Not to mention that support material is kind of hard to get rid of. I am always left with a thin layer that I have to remove manually.

A fun project I keep wondering about is printing the entire lens with a off the shelf components from thorlabs. This could be a very nice, light lens if designed correctly. The problem is that off-the shelf lens elements are quite pricey and the process is not cost effective.
Forum: Pentax DSLR Discussion 03-28-2017, 12:27 PM  
Any possibility of a 'K100' full frame prosumer body in the near future
Posted By rrstuff
Replies: 71
Views: 5,949
"K-70/50/30 >>style<< dials" i.e. cheaper dials and buttons, not the one found in K-3 or KP

I never said they will be making a mirrorless out of dSLR parts. I happen know a thing or two about engineering, having two engineering degrees from MIT and Caltech.
The development of mirrorless full frame camera has been rumored from a few sources, starting around mid 2016, also mentioned here on the forum.
More on the rumored Pentax mirrorless camera | Pentax Rumors
Forum: Pentax DSLR Discussion 03-28-2017, 12:02 PM  
Any possibility of a 'K100' full frame prosumer body in the near future
Posted By rrstuff
Replies: 71
Views: 5,949
I bet they could make a full frame mirrorless for around $1000. With K-70/50/30 style dials and buttons, 1/6000 shutter. dSLR would probably be more expensive due to the extra parts. Website on the matter:

"This is rather amazing. The completely disassembled Sony A7R consists of about a dozen major pieces, held together with 29 screws of just three different sizes. A typical DSLR has around 120 screws of 11 different sizes."
Lens Rentals | Blog
Forum: Photographic Industry and Professionals 03-18-2017, 02:43 AM  
Amateur shooting sons wedding
Posted By rrstuff
Replies: 33
Views: 2,625
Pentax forums would be a good place to start... I bet there is someone who would be happy to help out for either a symbolic fee or some good wedding food.
Forum: Photographic Industry and Professionals 03-17-2017, 04:44 PM  
Amateur shooting sons wedding
Posted By rrstuff
Replies: 33
Views: 2,625
First off, congratulations!

Do you think you could get a friend to do it? Perhaps someone here on the forum? In my opinion you shouldn't have to shoot your son's wedding, it's a lot of work, and you won't be able to focus and have this moment in memory. Unless you really want to of course.
Forum: Pentax Price Watch 03-15-2017, 09:10 PM  
DA 15mm F4 - $447 (lowest price in almost a year)
Posted By rrstuff
Replies: 5
Views: 2,713
I can't believe i got this lens for $359 during 2015s black friday (from kenmore camera). I think this must have been some sort of global and temporal minimum.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 03-15-2017, 08:57 PM  
Olympus Officially Ending the 4/3 Product Line
Posted By rrstuff
Replies: 31
Views: 1,933
I really liked four thirds. I had five of their cameras:
E-300, E-500, E-510, E-3 and E-1

And four lenes:
14-45, 40-150 F3.5, and later 11-22 and 14-54, when the prices went down.

I only shot the E-300 and E-510, the rest were bought recently out of nostalgia, and because they costed pennies. I got some of the best shots using their kit lenses (14-45, 40-150), because I simply couldn't afford more when I was in college.


E-3 with 40-150mm F3.5-4.5


E-300 with a 14-45mm kit lens:


E-300 with a 14-45mm kit lens:


I am seriously considering getting an E-3 for $150 and filling up on SHG zuikos just for fun, now that they are third-of-a-price and I can actually consider buying them, instead of just hoping.
Forum: Troubleshooting and Beginner Help 03-14-2017, 12:59 PM  
Pentax K-30/K-50 Aperture Problem
Posted By rrstuff
Replies: 14
Views: 925
If you want something slightly better than the kit lens, the 16-45 F4 can be bought for around $150 and is pretty good optically. Probably a bit better than 16-50 DA* actually.
Forum: Troubleshooting and Beginner Help 03-14-2017, 01:32 AM  
Pentax K-30/K-50 Aperture Problem
Posted By rrstuff
Replies: 14
Views: 925















You Tube




If you are handy, you could try to fix the camera yourself.
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