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Forum: Troubleshooting and Beginner Help 08-02-2022, 07:26 PM  
K-x eating batteries fast
Posted By THoog
Replies: 17
Views: 747
Could the camera have been off so long that it forgot the battery type? I vaguely remember a similar issue with a K-x and "known good" NiMH batteries, and IIRC it had reverted to auto-detect and was auto-detecting wrong.
Forum: Pentax K-30 & K-50 07-05-2022, 05:51 AM  
Pentax k-50 - issue with Pentax 18-250 lens
Posted By THoog
Replies: 9
Views: 682
Looking at the HTML, it appears the author copied the file for a previous posting and edited the body but didn't change the title tag.
Forum: Pentax K-30 & K-50 07-04-2022, 05:36 PM  
Pentax k-50 - issue with Pentax 18-250 lens
Posted By THoog
Replies: 9
Views: 682
I was going to suggest jiggling the zoom lock and/or twisting the zoom ring while holding the lens in different orientations to try to shake loose the whatever-it-is in the helical. The problem in swanlefitte's link (a loose screw) could be it. I have the Tamron-badged version of the 18-250, and have never had a problem, but I have had issues with loose screws in other Tamron lenses of that era.
Forum: General Photography 06-30-2022, 06:51 AM  
I Wonder...
Posted By THoog
Replies: 10
Views: 1,839
Asahi Glass is a dozen years older than Asahi Optical; unless AOCo was a subsidary of AGC all along and Pentax lore has been hiding it, I don't think you can find a relationship. The one possibility I can think of is if AGC bought the filter manufacturing bits when Hoya broke up Pentax, but it seems unlikely Hoya would facilitate a major glass maker to start competing with one of their core businesses.
Forum: Pentax K-01 05-24-2022, 05:55 AM  
All black K-01?
Posted By THoog
Replies: 6
Views: 552
Of course it's possible - anything assembled can be disassembled and reassembled - but getting the knobs off will require breaking glue bonds and may not go well. It would be cheaper and MUCH easier to just paint the parts. Also, having both, I can tell you that the black parts on the white/silver bodies have a smooth, bluish-black finish, while the yellow/black bodies have a textured finish that is a slightly "warmer" black. It's just different enough to look "wrong".

Painting it would also be following the tradition of Henri Cartier-Bresson, who painted the silver parts of his Leicas.
Forum: Pentax K-01 04-24-2022, 06:14 PM  
Reasons you love the K01 ?
Posted By THoog
Replies: 31
Views: 1,795
Some found that the "terrible ergonomics" of the K-01 actually made it easier to operate with thick winter gloves on. I remember the first time I picked one up (it was actually a dummy display unit), my only negative thought on the ergonomics was "they should have swapped the red and green buttons". Other than that, I didn't really have a problem with it. Because I grew up with a film SLR, I wasn't locked into the all-the-controls on the fat-right-grip format.

The problem I *did* have was after I bought one and I tried to use it like a regular camera, with a neck strap, I realized that my eyes were no longer young and I couldn't hold it far enough away to focus properly. So I tried a wrist strap - and that is when I fell in love with the K-01, because I could just shoot from the end of my arm, whether it be high, or low, or off to the side. It opened up a lot of creative opportunities. With a DSLR, I tend to shoot from one viewpoint - six feet off the ground - because squatting or kneeling can be a hassle when there are crowds around (and/or because I am old and out of shape, whatever). Also, to get those shots with a DSLR, I have to put the camera in LiveView, flip the neckstrap over my head (probably knocking my hat off in the process), set up and take the shot, switch the camera back to viewfinder mode, and put the neckstrap back over my head (knocking my hat off again) -- either I will just decide the shot isn't worth the bother, or the opportunity will be gone before I get set up. Yes, shooting at the end of my arm means trying to frame the shot with the LCD at some near-unviewable angles, but you learn and adapt.

And being relatively small and light, I have no problem bolting a K-01 onto a travel-tripod and carrying the whole rig around shoulder-arms for things like Christmas lights. I'd hesitate to do that with a K-5/3/1.
Forum: Flashes, Lighting, and Studio 03-31-2022, 01:17 PM  
Using a Metz Pentax flash at a museum
Posted By THoog
Replies: 12
Views: 737
The vast majority of my picture-taking* over the years has been in museums, and while most are strict about flashes and tripods, train museums are usually an exception.
Aviation/aerospace museums are usually okay with flashes, too - with similar challenges due to the size of the subjects.

*I hesitate to call what I do "photography" :p
Forum: Flashes, Lighting, and Studio 03-31-2022, 07:31 AM  
Using a Metz Pentax flash at a museum
Posted By THoog
Replies: 12
Views: 737
My issue with flashes in railroad museums is that the subjects are so large
(and usually painted dark colors) that if you use an on-camera flash, all you get is the nearest part with everything else lost in the dark. I would also lean towards a tripod, unless you can do off-camera flash with a wireless trigger.
Forum: Troubleshooting and Beginner Help 03-24-2022, 06:39 AM  
Old flash new flash what's the issue?
Posted By THoog
Replies: 31
Views: 1,521
In some older flashes, yes, the flash absolutely does pass 400 volts back through the camera. This is because all an SLR did to trigger the flash was close a metal contact in the camera, completing the circuit between the flash's capacitor and the strobe. Later flashes added electronics so that the trigger voltage did not have to be the full flash voltage. In either case, modern DSLRs have replaced the metal contact with a transistor, which may not be able to handle the trigger voltage.

This also partly answers the question of why are flashes so expensive compared to the good old days. We've gone from the only communication being a completed circuit to all sorts of settings negotiation between the camera and flash, in some cases wirelessly. You can still get a good manual flash for much less than a hundred bucks, if you shop carefully - but you will have to do more of the work that the expensive flashes do automatically.
Forum: Pentax SLR Lens Discussion 02-25-2022, 02:52 PM  
Newbie lens question
Posted By THoog
Replies: 6
Views: 625
Glad you figured it out! If the adapter ring is a genuine Pentax, then (1) congratulations - those are highly prized, and (2) you should be able to remove it just by inserting a fingernail in the notch, pulling the locking spring away from the mount, and gently twisting counter-clockwise. If it isn't a genuine Pentax, you will probably need a tool, but a small screwdriver should work. Some of the cheap 3rd-party adapter rings are machined so badly that they are hard to remove even with the tool, and the locking spring is worse than useless. For those, I usually clean up the machining with a file, remove and discard the spring, and try to avoid twisting the lens out of the mount when focusing.
Forum: Pentax SLR Lens Discussion 02-25-2022, 08:01 AM  
Newbie lens question
Posted By THoog
Replies: 6
Views: 625
Neither the aperture guard nor the Ricoh pin should have any effect on a manual-focus film camera like the Program Plus. Can you give us more detail on how the lens does not mount? Does the bayonet not insert all the way, or at all?
Forum: Pentax SLR Lens Discussion 01-15-2022, 06:15 AM  
My broken Tamron SP 17-50mm F/2.8 XR Di II LD Aspherical [IF]
Posted By THoog
Replies: 5
Views: 543
I think the answers have to be 'yes' and 'yes'. There are no K-mount lenses in the Tamron catalog, and Tamron has not introduced a new K-mount lens in years (unless you count Pentax-badged versions of some of their full-frame lenses). Their efforts appear to be pivoting towards mirrorless and full-frame.

The 17-50/2.8 "Workhorse" was introduced in 2008 - it is very unlikely they would still be making such an old design and just not listing it in their catalog.
Forum: Troubleshooting and Beginner Help 01-12-2022, 07:47 AM  
P/K A lens wont fit my KM
Posted By THoog
Replies: 14
Views: 777
It is meant for early 1980s Ricoh or Pentax auto-exposure manual-focus K-mount SLRs. Unfortunately, when Pentax implemented autofocus later on, they put the autofocus sprocket where Ricoh had put their auto-exposure data pin (the "Ricoh pin"), and the pin can catch on the sprocket hole, locking the lens in place. It isn't a problem for manual focus bodies, and some (but not all) lens makers used a rounded pin that doesn't catch. Most DSLR shooters remove the pin to be sure.
Forum: Troubleshooting and Beginner Help 01-11-2022, 08:53 AM  
P/K A lens wont fit my KM
Posted By THoog
Replies: 14
Views: 777
It looks like it might have the longer aperture arm shield that bumps into the SDM contacts. Some third-party lens have this, and you have to remove the shield or file/cut away the extra metal. This sounds a more dramatic than it is - I have done the mod in less than five minutes. There are a number of threads on the forum showing how to deal with this issue.
Forum: Pentax DSLR Discussion 12-01-2021, 07:12 AM  
ML-60 for K200D?
Posted By THoog
Replies: 6
Views: 441
The ML-60 fits the K-7/5/5ii/5iis/3/3ii/30/50/70/500/K-S1/K-S2/KP.

The K200D used the same screen as the K100D/K100D Super/K-m/x/r. I don't remember if Pentax made optional screens with lines for those bodies; I expect they would be pretty hard to find now, unless you went with a 3rd-party screen.
Forum: General Photography 10-29-2021, 04:14 PM  
Photographer Followed Home, Robbed of Gear at Gunpoint
Posted By THoog
Replies: 44
Views: 2,104
I would not call 5 out of 53 stores "all their locations". Competitor CVS only has 22 stores in the city. While theft is a serious issue, I suspect market saturation is also a factor.
Forum: Pentax SLR Lens Discussion 10-16-2021, 01:25 PM  
Is there any way to mount a filter adapter to the 10-17 Fisheye?
Posted By THoog
Replies: 35
Views: 1,640
IIRC, image size in PTLens stays the same, unless you crop smaller to remove the black bulges that appear when you de-fish.

And just to throw some chaos into the original discussion, the ridges on the inner surfaces of the DA 10-17's built-in hood are exactly the right size/spacing to grip 58mm filter threads. Vignetting will be a problem.
Forum: Lens Sample Photo Archive 10-14-2021, 11:15 AM  
Coastar 28mm f/2.8 No. 440222
Posted By THoog
Replies: 10
Views: 606
For old glass with no/poor coatings, I found using the deepest hood I could find that did not vignette would help with the haze.

As to sharpness, while cheap 28mms are common as sparrows, sharp ones can be hard to find (by today's standards of sharpness).
Forum: Pentax DSLR Discussion 08-24-2021, 09:47 AM  
K-5 II Question - How does it compare to the K-70 (any red flags due to its age)
Posted By THoog
Replies: 37
Views: 2,027
I still prefer that 16MP sensor for shooting holiday lights and things like that. One quirk I can think of is a tendency to blow out on blue lights, especially blue LEDs.
Forum: General Photography 08-19-2021, 08:02 AM  
Ni-Tec Inc camera lens
Posted By THoog
Replies: 11
Views: 719
I agree with Wasp - I have a number of preset MF lenses from that era and the ring on the rear end screams "T-mount" at me.
Forum: Pentax Camera and Field Accessories 08-10-2021, 08:57 PM  
DSLR plus an extra lens (sometimes) in a "normal" backpack
Posted By THoog
Replies: 13
Views: 1,216
For years, my preferred travel kit has been an ordinary backpack with a small camera bag (an old Tamrac superlight) holding my spare body and lenses, with the main body in a Lowepro toploader case and any teles in Op/Tech neoprene pouches. The toploader can serve as cushioning in the backpack, or I can attach the shoulder strap for a very light shoulder bag (or a ready-use pouch for a second lens). I've used various Op/Tech neoprene jackets for my camera bodies, but I really only do that for cushioning these days as the toploader is more flexible.
Forum: Pentax SLR Lens Discussion 08-09-2021, 02:46 PM  
Why the heck Ricoh didn't include a tripod collar with the D-FA 70-210?
Posted By THoog
Replies: 39
Views: 3,282
:D Kidding aside, I recall a thread on an old lens forum where a guy in Indonesia/Malaysia had some fantastic bird photos, despite handholding telephoto lenses in forest conditions. His secret: arms like a blacksmith.
Forum: Pentax K-01 08-05-2021, 05:56 AM  
Changing K-01 rubber panels?
Posted By THoog
Replies: 3
Views: 1,068
The old articles I found by people taking one apart (google "Pentax K-01 disassembly instructions") say glue or double sided tape.
Forum: Troubleshooting and Beginner Help 07-13-2021, 11:22 AM  
Got my lens wet. Now aperture doesn't work.
Posted By THoog
Replies: 19
Views: 1,043
Craft stores may have desiccant in larger amounts somewhere around the floral section (sold for DIY dried flowers). I bought a couple tubs of the stuff.
Forum: Pentax DSLR Discussion 06-30-2021, 06:59 AM  
SD Write Protection
Posted By THoog
Replies: 17
Views: 896
I've used dozens of SD cards in multiple Pentax cameras and multiple Windows PCs for well over a decade, and the Windows system files have never been a problem. Since they aren't in the the DCIM folder, the camera is unlikely to care about them. I think you would be more likely to break the write protect tab trying to lock it every time you put it in a PC, rather than prevent "corruption".

That said, you should not allow Windows to attempt any auto-repairs on SD cards, and of it asks if you want to format the disk, the answer is always NO.
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