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Forum: Pentax SLR Lens Discussion 13 Hours Ago  
$89 for a T mount ring?
Posted By vonBaloney
Replies: 13
Views: 455
My post was addressed to the one above mine (sorry should have quoted) in which it seems to be suggested that knowledge of "how it works" will save you. It won't -- only removing the spring will. So just shouting for everyone to hear: NEVER USE A THIRD-PARTY ADAPTER OF THIS TYPE WITHOUT REMOVING THAT SPRING FIRST.
Forum: Pentax SLR Lens Discussion 14 Hours Ago  
$89 for a T mount ring?
Posted By vonBaloney
Replies: 13
Views: 455
Again, if you buy one of the cheaper third-party ones and don't take the spring out immediately before you use it, it doesn't matter one bit how it was "designed", YOU WILL HAVE A LENS GET STUCK. That will happen, guaranteed. (You will have no such problems with a genuine Pentax one though.)
Forum: Pentax SLR Lens Discussion 15 Hours Ago  
$89 for a T mount ring?
Posted By vonBaloney
Replies: 13
Views: 455
If you buy one of the cheaper ones and don't remove the little spring thing, you are guaranteed to lose your mind trying to get a lens unstuck. Otherwise, I prefer the cheaper ones (with the spring removed) as you can just leave them on the lens as an adapter.
Forum: Pentax SLR Lens Discussion 1 Day Ago  
$89 for a T mount ring?
Posted By vonBaloney
Replies: 13
Views: 455
There is no such thing as a T-mount Takumar. m42 and T-mount are different things (although they both have 42mm threads, the pitch is different). And yes the "genuine" Pentax-branded m42-K adapter (again, not t-mount) you are looking at is pricey, but you can get generic ones for much much less ($15-$20) or a used genuine one for maybe $40-$50
Forum: Pentax KP 1 Day Ago  
KP startup machine gun sound
Posted By vonBaloney
Replies: 16
Views: 825
What solution? (I've noticed no difference with firmware update.)
Forum: Mini-Challenges, Games, and Photo Stories 2 Days Ago  
Alphabet Race (a very quick game)
Posted By vonBaloney
Replies: 57,393
Views: 2,654,760
Locomotive Simulator Training Car

Forum: Mini-Challenges, Games, and Photo Stories 2 Days Ago  
Alphabet Race (a very quick game)
Posted By vonBaloney
Replies: 57,393
Views: 2,654,760
Jay (Steller's Jay)

Forum: Sold Items 4 Days Ago  
For Sale - Sold: Tamron 1.4x Pz-AF teleconverter (full-frame & SDM compatible)
Posted By vonBaloney
Replies: 3
Views: 483
sold the other one too
Forum: Troubleshooting and Beginner Help 4 Days Ago  
K-x Pentamirror issue. Craigslist steal or colossal fail (but what do I do now)?
Posted By vonBaloney
Replies: 10
Views: 386
focusing screens are incredibly easy to damage
Forum: Mini-Challenges, Games, and Photo Stories 09-16-2021, 08:03 PM  
Alphabet Race (a very quick game)
Posted By vonBaloney
Replies: 57,393
Views: 2,654,760
Antlers

Forum: Mini-Challenges, Games, and Photo Stories 09-16-2021, 07:12 PM  
"I Spy" Photo Challenge
Posted By vonBaloney
Replies: 34,830
Views: 1,969,156
I spy a bird

Forum: Sold Items 09-16-2021, 02:37 PM  
For Sale - Sold: Tamron 1.4x Pz-AF teleconverter (full-frame & SDM compatible)
Posted By vonBaloney
Replies: 3
Views: 483
bump. Teleconverter anyone?

---------- Post added 09-16-21 at 10:31 PM ----------

One is sold, one left.
Forum: Troubleshooting and Beginner Help 09-15-2021, 03:47 PM  
K-5 won't turn on - potential fixes already done without success...
Posted By vonBaloney
Replies: 15
Views: 627
Sounds broken, but move EVERY external switch and dial.
Forum: Pentax SLR Lens Discussion 09-15-2021, 12:43 PM  
Adapter Ring to convert Pentax K to M42 (yes that's right)
Posted By vonBaloney
Replies: 54
Views: 1,647
If you look up "Spiratone T-Flange for Pentax K" (which is the same thing Wheatridge has -- maybe he wants to sell his?), that's one version. (Must be the one that says "Flange", not T-mount adapter. I see at least one of those on ebay right now. You can also find often Vivitar "Lens Mount Adpater Ring" -- that's the same thing for their t-mount based bellows systems. (I don't see any of those for Pentax right now, but they come up once in a while.) With both of these, you can find Pentax K versions, but also Nikon, Minolta, etc as they are meant for universal t-mount based bellows (which uses standard t-mount adapters on the camera side for whatever body is used).

Then you find a generic T-mount-m42 adapter, not hard. (Or just buy one of the t-mount bellows systems.)

There are also reversing rings, i.e. 49mm -> T-mount from Vivitar in order to reverse mount a normal lens by the filter threads to a T-mount bellows, if that's interesting to you. (search for "vivitar reverse adapter ring")
Forum: Pentax SLR Lens Discussion 09-15-2021, 10:05 AM  
Adapter Ring to convert Pentax K to M42 (yes that's right)
Posted By vonBaloney
Replies: 54
Views: 1,647
You can buy a PK->Tmount (made for T-mount bellows) and a Tmount->m42 off ebay right now for $30 or so.
Forum: Troubleshooting and Beginner Help 09-15-2021, 07:27 AM  
Is the focus on the Takumar SMC 50 mm THAT soft?!
Posted By vonBaloney
Replies: 27
Views: 1,002
Actually I have seen that -- with soft-focus lenses and certain very fast lenses that have "dreamy" looks when they are wide-open, i.e. it looks pretty normal through the optical viewfinder, but once you take the picture the dreamy qualities are way more pronounced. So I have to use live-view in those situations to see what I'm really getting. Somehow the focusing screen is "sharpening" that certain kind of glow (separate from whether something is "in-focus" or not). Anyway, stating again that this lens really looks like it has a reversed element (or something like that). I've got one with a reversed rear element that gets results just like that (different lens, same effect). I also have a lens where the front section (with the front element attached) can be unscrewed fairly easily and discovered I can use the amount of unscrewing to generate more or less soft focus effect. So something is up with that lens.
Forum: Pentax SLR Lens Discussion 09-14-2021, 08:55 AM  
Teleconverters - Pentax v Kenko v Tamron
Posted By vonBaloney
Replies: 18
Views: 940
The Kenko & Tamron are indeed the same. I actually just compared the Tamron (two of them) vs the Pentax yesterday and couldn't find a difference in quality other than the Pentax is slightly more magnified. The Pentax has the advantage of weather-sealing and it transmits the proper adjusted focal length to the camera so the shake reduction works better. The Kenko/Tamron is full-frame however, and the Pentax is not.
Forum: Sold Items 09-13-2021, 06:01 PM  
For Sale - Sold: Tamron 1.4x Pz-AF teleconverter (full-frame & SDM compatible)
Posted By vonBaloney
Replies: 3
Views: 483
PentaxForums.com Marketplace Listing

Item for Sale
Tamron 1.4x Pz-AF teleconverter (full-frame & SDM compatible)

Asking Price
60.00 USD

Item Location
Savannah GA (United States)

Item Description
Tamron 1.4x Pz-AF teleconverter

High-quality TC, very well-regarded. This TC allows auto-focus "passthrough" with both screwdrive and SDM/DC lenses. (Sigma HSM lenses can be finicky though -- depends on the lens. They are also finicky on the Pentax TC.) But like all TCs besides the Pentax one, it reports the original focal length of the base lens rather than the new effective focal length (x 1.4) when using autofocus lenses. (Manual lenses you enter it yourself, so you can still do that.) So shake reduction is somewhat less effective if you have that turned on.

Ok, I've actually got two of these. Both with the same "issue", but that issue isn't really a problem. Which is -- they both have some internal haze on the elements. It is one of those things that you can see only with an LED flashlight but not when you hold it up to the window (in which case it looks totally clear). However, I can't detect any optical problems caused by this whatsoever (which is usually the case when it is only detectable via flashlight) -- I tested them side-by-side and also compared with the Pentax HD 1.4x and I can't tell the difference between any of the results (actually the Pentax version has a slightly different magnification, but other than that). My tests are all on APS-C, so I'm not seeing the edges. Anyway, I believe these perform equivalently to any other copy of this TC, but realize this still dings the value somewhat and these are priced accordingly.


$60 each (that includes shipping)

Otherwise, both are in very good shape and work fine -- only difference is I've got an original Tamron body cap for one of them -- the rest of the caps are generic.

I take PayPal (I pay the fees), and am shipping to USA only.

Pics of TC #1: (THIS ONE HAS BEEN SOLD)








Pics of TC #2 (THIS ONE STILL AVAILABLE)







Are you the original owner of the item being sold?
Yes

Are you selling or trading this item?
Selling

Item Condition (Key)
Used
Good

Shipping Destinations
United States

Shipping Charge
free in USA

Shipping Services
USPS Priority

Accepted Payment Types
PayPal

Return Policy & Additional Details
returns accepted if not as stated -- please let me know of any problems within 3 days of delivery

Please send me a private message if interested in the item!
Forum: Photographic Equipment for Sale 09-13-2021, 10:42 AM  
For Sale: Ricoh Rikenon P macro 105mm 2.8 Pentax K mount manual focus.
Posted By vonBaloney
Replies: 7
Views: 702
Surprised this is still here -- this legendary macro lens is more commonly found under the Lester Dine or Vivitar Series 1 names, but it is the same lens.
Forum: Pentax SLR Lens Discussion 09-11-2021, 12:11 PM  
Adapter Ring to convert Pentax K to M42 (yes that's right)
Posted By vonBaloney
Replies: 54
Views: 1,647
Are you sure that it isn't a T-mount thread (not a true m42)? (The Spiratone "T-Flange for Pentax K" is not too hard to find, which is K -> Tmount and made for the Spiratone Macrobel T-mount Bellows system I think.) I don't think I've seen an m42 one, but that would be useful. The Vivitar Bellows system was a similar T-mount system, and you can find Vivitar branded K-Tmount adapters also. (As well as Nikon, Minolta, etc to T-mount for the same bellows)
Forum: General Photography 09-09-2021, 07:57 PM  
Poll: How large does everyone here print?
Posted By vonBaloney
Replies: 33
Views: 914
We use White House CC or Bay Photo -- they are pro labs. It has nothing to do with using the right profile, etc etc. We've done exhaustive tests with the labs. Doing the best they can do with the best we can do, it is just better at home. They just don't have the options. Also home printing is faster and more reliable. We are super picky -- most people apparently don't care about little white specks that might have flaked off an inkjet print (which they almost always have, so we generally don't get inkjet prints from the lab), creases from careless handling during packaging, etc. It is annoying if you have to have something reprinted once (or twice, or even three times or more) because it isn't perfect -- I'm not sending something with a visible flaw to a customer.
Forum: General Photography 09-09-2021, 07:36 PM  
Poll: How large does everyone here print?
Posted By vonBaloney
Replies: 33
Views: 914
Anything larger than 13x19 we order from a lab, but I'll quibble with the "they look better" part of your statement. The prints we make ourselves are very much nicer than anything we can get from the lab at the same size (and with a vastly greater choice of papers that we can use), which is the main reason we still have a printer for the smaller sizes. But printing big in the home would just be too big of a hassle and expense, so we rely on the bigness itself for much of the "wow factor" at the larger sizes and the exquisite fine detail, richer color tones, and texture we get from printing them ourselves at the smaller sizes. (Of course you have to have a decent photo printer and know what you are doing in terms of prep, but you need at least the second part to get good results from the lab as well.)
Forum: General Photography 09-09-2021, 03:18 PM  
Poll: How large does everyone here print?
Posted By vonBaloney
Replies: 33
Views: 914
At home prints up to 13x19 on our printer, bigger than that depends on the source image and the lab, but we've sold plenty that are 40-45 inches on the long side and once in a blue moon a really big one (e.g. 6 feet across).
Forum: Pentax SLR Lens Discussion 09-09-2021, 02:13 PM  
Adapter Ring to convert Pentax K to M42 (yes that's right)
Posted By vonBaloney
Replies: 54
Views: 1,647
There are K-mount to T-mount adapters (made for bellows), which coupled with a T-mount to m42 will get you there (with some significant extension leaving you only macros on any non-telephoto focal length lens). Possibly there is a direct to m42 version somewhere, but again the extension will be significant.
Forum: Pentax DSLR Discussion 09-09-2021, 09:08 AM  
Trouble with using Pentax Auto Extension Tubes
Posted By vonBaloney
Replies: 16
Views: 618
main points:

-- You paid a little extra for the name but also the quality. There are no better all mechanical tubes you can get. (There are plenty of worse ones)

-- However, those tubes are not suitable for your lenses since your lenses have no aperture ring.

-- But... really, NO tubes are really suitable for those lenses as they are just poor choices for macro work (even if there are tubes out there that would technically work)

-- If you do find tubes with electrical contacts, expect to pay at least $100, and maybe double that. (And some are crap, so might wanna check in with the forum before purchase)

So, if you want to pursue macro, you have choices. The easiest is to buy a cheap old manual K-mount 50mm (almost any brand will do if it is at least as fast as f/2 (f/1.7 or f/1.8 more common and preferable though). You can find many for $30-$50. Then you can use your tubes with that.

Another option, probably better, is to forget about those tubes -- return them if you can -- and buy a real macro lens. If you don't mind using manual lenses (no auto-aperture, no autofocus), then something like the Vivitar 55mm f/2.8 macro (which can be found in K-mount and also m42 screw mount) is by even modern standards one of the sharpest lenses around and can often be found for $100-$150 (I see one on ebay in PK for $100 + shipping right now). Other underrated lenses are old Sigma 50mm and 90mm manual focus macros, which DO have auto-aperture ('A' setting on the aperture ring). (Just make sure the rings and rubber aren't falling apart as the Sigma's from the age can be that way if they haven't been kept well.) Again, I see a Sigma 90mm macro on ebay right now for only $80 -- totally worth it. And if you've got a bigger budget, of course there is a whole world of more modern and expensive lenses to choose from. Please note that many old lenses will throw around the word "macro" quite a bit when they aren't truly macro lenses (especially zooms). Look for a real macro lens that gives you at least a 1:2 macro ratio. (1:2 is half lifesize, 1:1 is "full" lifesize macro.) There are plenty of crappy not-really-macro-lenses-that-say-macro (although a few of these are quite good), but almost any true macro lens will be pretty good quality as they just have to be.
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