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Forum: Pentax Price Watch 6 Days Ago  
Ebay 15% everything today
Posted By vonBaloney
Replies: 31
Views: 1,265
This very thread started by me needed manual approval -- thought everything on this subforum did.
Forum: Sold Items 07-03-2018, 04:05 PM  
Wanted - Acquired: Operating Manual For Pentax Q Camera
Posted By vonBaloney
Replies: 5
Views: 143
That's the idea.
Forum: Sold Items 07-03-2018, 02:57 PM  
Wanted - Acquired: Operating Manual For Pentax Q Camera
Posted By vonBaloney
Replies: 5
Views: 143
pm sent
Forum: Troubleshooting and Beginner Help 07-02-2018, 12:41 PM  
Need help identifying this mount
Posted By vonBaloney
Replies: 18
Views: 529
Doesn't really look complete. Looks like a bellows lens or enlarger lens -- does it have an aperture? Lets see the other side of it and the face ring if any.
Forum: Pentax Forums Giveaways 06-30-2018, 04:04 PM  
K-1 Raffle: Entry thread 2, 11pm UTC, June 30, 2018
Posted By vonBaloney
Replies: 49
Views: 13,769
This is a reply!
Forum: Repairs and Warranty Service 06-29-2018, 09:34 PM  
Another good job by dcshooter
Posted By vonBaloney
Replies: 9
Views: 1,443
No longer a member? Was he actually banned? I have a lens to send him. Please send contact info.
Forum: Pentax Price Watch 06-29-2018, 07:24 AM  
Ebay 15% everything today
Posted By vonBaloney
Replies: 31
Views: 1,265
Another Ebay coupon for everything today (US & Canada) -- 15% off (minimum purchase $25, maximum savings $100). Coupon code PERFECTDAY.


There was some confusion about these before -- you can buy more than one thing -- just "add to cart" several items and then check out once with the coupon.
Forum: Pentax Camera and Field Accessories 06-25-2018, 05:34 PM  
You CAN use the Pentax AF adapter on "adapted" Zeiss and Leica lenses!
Posted By vonBaloney
Replies: 17
Views: 678
You will find that the adapter sometimes needs AF focus adjustment and that the adjustment needed can vary from lens to lens. It is worth it to manually focus a few shots critically to see the potential of a combo. (Just turn off AF.) Like any TC, you need a pretty good base lens to get sharp results.
Forum: Pentax Camera and Field Accessories 06-25-2018, 03:19 PM  
You CAN use the Pentax AF adapter on "adapted" Zeiss and Leica lenses!
Posted By vonBaloney
Replies: 17
Views: 678
Yes, so of course the opposite is also true: focusing the base lens has no effect (no direct effect) on the adapter -- they are connected electronically if it is an 'A' lens, but not mechanically. (Which is the whole magic -- it provides AF to lenses without any AF mechanism.) And the position the adapter is in (internally) will affect where you need to focus the base lens. The official way to use it is to put the base lens at infinity and that's that, but in practice for lots of things you need to ballpark focus the base lens. (You can also just turn off AF and use it as a 1.7 teleconverter manual-focus only, but you should AF on something far away first to put the adapter in its best position.)

One thing I discovered only a couple days ago is that the adapter doesn't like Sigma AF lenses (Pentax AF lenses work fine) -- if will give you shifted aperture readings (which isn't so bad, just annoying) but more importantly wrong aperture physical settings (depending on the lens it will close down several stops too far making it effectively impossible to for instance stop down to f/4 on an f/2.8 lens -- it will go straight from wide open to something like f/6.3. So if you're using it just as a 1.7x teleconverter on AF lenses, third-party lenses may be a problem. (Problem is known on Sigma, I don't know about Tamron.)
Forum: Pentax Camera and Field Accessories 06-25-2018, 01:52 PM  
You CAN use the Pentax AF adapter on "adapted" Zeiss and Leica lenses!
Posted By vonBaloney
Replies: 17
Views: 678
Huh? It doesn't move anything on the base lens whatsoever, nor is there any linkage to do so. (What would it move on a manual focus lens?) The adapter just moves its own internals forward and back to focus.
Forum: Pentax Camera and Field Accessories 06-25-2018, 10:39 AM  
You CAN use the Pentax AF adapter on "adapted" Zeiss and Leica lenses!
Posted By vonBaloney
Replies: 17
Views: 678
Not sure what you mean about the "adapter moving it". The adapter doesn't move anything on the lens -- just moves itself back and forth -- that's why main lens has to be in the ballpark focus-wise. So doesn't matter how big the lens is. (What would it move anyway if they aren't AF lenses?)
Forum: Digital Processing, Software, and Printing 06-24-2018, 09:21 AM  
Why clean your sensor when you can...
Posted By vonBaloney
Replies: 20
Views: 1,157
I very much doubt that's sensor dust. It is either on or just behind the front element or as suggested actual particles in the air you've photographed.
Forum: Pentax SLR Lens Discussion 06-24-2018, 09:19 AM  
M42 adapter with flange for aperture pin
Posted By vonBaloney
Replies: 28
Views: 780
I take the springs out immediately, except on the real ones from Pentax. They are a nightmare, plus I want the mount adapter to stay on the lens, not the body.
Forum: Troubleshooting and Beginner Help 06-22-2018, 08:58 AM  
Sigma 50-500mm f/4-6.3 APO EX DG HSM Optical Stabilised Zoom Lens Canon Fit-
Posted By vonBaloney
Replies: 6
Views: 377
Not with a Canon mount it won't. Put it on a Canon body.
Forum: Pentax SLR Lens Discussion 06-21-2018, 09:04 AM  
M42 adapter with flange for aperture pin
Posted By vonBaloney
Replies: 28
Views: 780
Yeah, I've got the ones with the external flange. If I tell myself I won't need to focus too far out, somehow I'm always wrong that day. The washer works good for the Meyer/Pentacon 135 & 200 (see here: M42 Adapter - Lenses turning - PentaxForums.com), but is a bit clumsy on some other "baseless" lenses like the tiny Jena Tessar 50mm. If there was an adapter that blocked the light with its internal flange without the need for extra external stuff, that would be great.
Forum: Pentax Camera and Field Accessories 06-21-2018, 07:53 AM  
Thinnest arca-swiss compatible tripod plate available
Posted By vonBaloney
Replies: 33
Views: 1,170
The Joby Ultra Plate is about 9mm thick in total, but the top 1-2mm of that is a bit of rubber on the top of the plate -- the metal part is actually rather thin. The rubber is set in a slightly recessed area on the top of the plate -- if you removed it (or sanded it down so it was flush or replaced with some other thinner material) you'd have a 7-8mm thick plate. It has a 30mm center track for a screw (or two) plus two fixed 1/4" holes on the edges. I have one semi-permanently attached to my A*600/5.6 as a spacer. It was the only one I could find with the right hole configuration that would allow me to strongly attach a much longer plate below it using the two fixed holes.
Forum: Pentax SLR Lens Discussion 06-20-2018, 07:35 PM  
M42 adapter with flange for aperture pin
Posted By vonBaloney
Replies: 28
Views: 780
I get light leaks with my Meyer 200/4 (and similar narrow base screw-mount lenses) with a regular non-pin-depressing m42 adapter (especially a generic one where I've removed the spring) -- does it take care of that problem? On the Meyer, I've solved it with a big rubber washer which I've detailed on this forum before, but some smaller lenses that doesn't work as well. A more light-tight but flush adapter would be welcome for those narrow lenses.
Forum: Digital Processing, Software, and Printing 06-19-2018, 10:14 AM  
The Just Released $49.99 New/Improved Version Of NIK Collection Is A Rip Off!
Posted By vonBaloney
Replies: 36
Views: 1,744
I've heard of lots of troubles using the Google Nik collection with the newest Photoshop versions -- we're still using PS CS6, and have had freeze-ups with that sometimes when doing control point stuff. Still been afraid to go to CC lest it stop working altogether. I'm glad somebody is giving it a go and presumably will keep it running, it was tragic to see Google just abandon it. We bought the full suite a long time ago, even $99 sounds way too low -- pretty sure we paid hundreds for it and felt it was well worth it.
Forum: Pentax Camera and Field Accessories 06-18-2018, 10:16 AM  
Thinnest arca-swiss compatible tripod plate available
Posted By vonBaloney
Replies: 33
Views: 1,170
We're talking about the height of the plate? Can you really have a plate only 5mm thick and still have a usable bevel for the clamp? Or are you just referring to height above and beyond the clamped part? And how is that extra 4mm really getting in your way?
Forum: Pentax SLR Lens Discussion 06-15-2018, 08:47 AM  
M42 adapter with flange for aperture pin
Posted By vonBaloney
Replies: 28
Views: 780
Please post back here when you get it and tell us if it is any good.
Forum: Pentax SLR Lens Discussion 06-15-2018, 06:42 AM  
The DA 18-250mm ED AL (IF) for close ups?
Posted By vonBaloney
Replies: 5
Views: 310
It is a fine lens, especially on the wide-to-middle end, and since it the minimum focus distance is about a foot through the whole range, yes it can be quite good for close-ups.
Forum: Pentax SLR Lens Discussion 06-15-2018, 06:25 AM  
M42 adapter with flange for aperture pin
Posted By vonBaloney
Replies: 28
Views: 780
I know some find it scary but superglue works and you don't have to open up the lens. Easily removable with a dab of acetone. (As long as the mount is not plastic -- acetone will melt that.) Some are easy to fix from the inside, some are difficult to open up and I'd rather just glue them. Never had a problem.


Which lens is it? It doesn't have a auto/manual switch on the side?
Forum: General Photography 06-14-2018, 09:50 AM  
Shake Reduction when using a tripod?
Posted By vonBaloney
Replies: 42
Views: 1,216
Yep.


Yep.

Like I said above, test in the field under real conditions, get to know what happens: what helps, what hurts, what doesn't matter.
Forum: General Photography 06-13-2018, 08:50 AM  
Shake Reduction when using a tripod?
Posted By vonBaloney
Replies: 42
Views: 1,216
Doesn't it really depend on the user and the conditions? If you are using IR remote, timer, or MLU, it will be off anyway. So the only time it would be on when using tripod is manual shutter release with your hand on the camera or possibly wired remote. And if you are using manual focus lenses or panning/tilting around (maybe on a gimbal head), you may also have a hand on the lens itself. Some simple tests in the field under actual conditions will tell you whether it is better or worse right now in those conditions. I've seen it help, I've seen it hurt, and I've seen it make no difference. Under ideal fixed conditions, yeah it probably makes no difference, but if you are under ideal fixed conditions that would probably include some sort of hands-off trigger where it wouldn't be activated anyway. So it just depends, there are a million variables. But just generally, the longer the focal length, the more likely it will be to make a difference (for better or worse). (Shutter speed also very important, obviously.)
Forum: Pentax SLR Lens Discussion 06-07-2018, 11:51 AM  
Pentax 28mm f2 rare lens -- cloudiness INSIDE a lens element?
Posted By vonBaloney
Replies: 9
Views: 491
The outer outer is painted black, but the inner edge on one side of that notch is visibly unpolished, but the other side of the notch on the inside the edge is darker/smooth. So it is kind of strange. I would think an internal reflection might appear differently depending on the angle of the light (or appear to move around) -- this looks like an unchanging thing when you can see it.
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