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11-04-2023, 06:55 PM   #1
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adaptall 2 usage

so back in ancient days, Tamron had the bright idea of creating lenses with interchangeable mounts. They did several versions of this. The one I use is the adaptall 2 with the aperture contacts ie PKA. The question is do people have an adapter per lens or one adapter for all lenses?

11-04-2023, 07:09 PM   #2
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QuoteOriginally posted by betchern0t Quote
so back in ancient days, Tamron had the bright idea of creating lenses with interchangeable mounts. They did several versions of this. The one I use is the adaptall 2 with the aperture contacts ie PKA. The question is do people have an adapter per lens or one adapter for all lenses?
I used one adapter per lens. The PKA adapters can be a bit finicky so the less I messed with them, the better.

So many good Adaptall lenses...
11-04-2023, 07:10 PM   #3
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QuoteOriginally posted by betchern0t Quote
so back in ancient days, Tamron had the bright idea of creating lenses with interchangeable mounts. They did several versions of this. The one I use is the adaptall 2 with the aperture contacts ie PKA. The question is do people have an adapter per lens or one adapter for all lenses?
I like to have one for each. I'd like to anyway. They're somewhat fragile and finicky, less chance of breaking a tab or something. Problem is I have 6 pka's and only 2 work correctly. Tab fell off one, other three are glitchy and often relay wrong data. There's an adaptall lens club on here where you can find good information and some experts with a lot of experience.
11-04-2023, 07:13 PM   #4
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Finicky is right. I have one on a Tamron 90mm macro lens that I can't seem to get right.

11-04-2023, 07:50 PM   #5
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hmm that is what I thought. I have a 90mm sp macro/telephoto. To get the adaptor I bought a 28mm f2.6 with it on. Now I am wondering whether to get another adaptor for it. but they are getting hard to find. I am not prepared to pay around $au200. The only one i have seen was up here cheaper was up here.
11-05-2023, 01:35 AM   #6
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I do have sufficient Pentax PKA adaptors to suit my needs for my Pentax system, but I also run Exa and Miranda film cameras (for that waist-level viewfinder experience) and I've only got one adaptor for each of those systems, so the mounts get swapped regularly.
No problem at all, if the mounts are kept clean and lubricated and the manufacturer's fitting instructions are followed
As with many things, after what well may be 30+ years, the rotating mechanisms, in the PKA adaptors especially, have dried out and become sticky.
FWIW, the last PKA adaptor I bought cost 8 (GBP) s/h in a local photographic repair shop (now closed, unfortunately!) ... $au200 does seem rather excessive!
Depending on which camera you've got, and your subject matter and style of shooting, using a non-PKA adaptor with the camera in Manual Mode, relying on the magic Green Button for your exposure readings, can be perfectly adequate

See my posting here Adaptall Mount Club (Tamron). - Page 301 - PentaxForums.com and subsequently for more details.
Good luck
11-05-2023, 02:40 AM   #7
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QuoteOriginally posted by kypfer Quote
Depending on which camera you've got, and your subject matter and style of shooting, using a non-PKA adaptor with the camera in Manual Mode, relying on the magic Green Button for your exposure readings, can be perfectly adequate )
With a K-3 III you don't even need to worry about the green button anymore. But you still need PKA for P-TTL flash...

11-05-2023, 04:45 AM   #8
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QuoteOriginally posted by luftfluss Quote
I used one adapter per lens. The PKA adapters can be a bit finicky so the less I messed with them, the better.
Same for me. I sold all of my adaptall lenses but I keep one PKA adapter "in case of", I would not sell it because this one works fine (which is not the cas for all of them).

I owned two Tamron adaptall 90mmmacro lenses (52B and 72B), they were great, I sold them when I bought newer macro lenses.
11-05-2023, 10:09 AM   #9
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I have a couple of them.

---------- Post added 11-05-23 at 09:10 AM ----------

QuoteOriginally posted by MikeNArk Quote
Finicky is right. I have one on a Tamron 90mm macro lens that I can't seem to get right.
Amen to that. It's a PIA
12-14-2023, 03:37 PM   #10
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Ideally one per lens, but I am a couple of adapters short
12-15-2023, 02:42 PM   #11
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I think I have two adaptall lenses and three mounts... Nikon, M42, and PK... I might have a PK-A, so it might be four mounts and two lenses...
I should get rid of that Nikon one...

I keep hoping I'll find some crazy awesome deal on an Adaptall lens I want in some mount I don't

-Eric
12-15-2023, 04:22 PM   #12
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I have just two Adaptall lenses:
Tamron SP MF MACRO 1:1 (72B) 90mm F2.8
Tamron Adaptall-2 SP (52B/52BB) 90mm F2.5

But only one PK-A Adapter (and a standard PK Adapter)

Since I own the 72B (was hard to find) I hardly use the 52B anymore, so it doesn't matter.



12-15-2023, 04:51 PM   #13
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The Tamron P/K adapter works far more reliably than the P/KA version.
It is also less expensive. So if you don't need the "A" setting...

Chris
12-15-2023, 05:14 PM - 2 Likes   #14
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I have only two Adaptall-2 lenses -- a 90/2.8 macro (72B) and a 35-70 f/3.5-4.5 (09A). I only use the 72B and have one PK adapter.


QuoteOriginally posted by kypfer Quote
No problem at all, if the mounts are kept clean and lubricated and the manufacturer's fitting instructions are followed
A good point.

While some PK/A adapters may have electrical or mechanical issues, adapters in good condition may cause issues if they are not installed properly. The mount should be used in accordance with the instructions published originally by Tamron in various Adaptall-2 Owner’s Manuals (readily available online). In particular, it must be mounted and dismounted carefully with the lens set to its maximum (widest) aperture, and the mounting tabs need to be aligned and seated in their slots.

- Craig
12-16-2023, 07:57 AM   #15
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QuoteOriginally posted by betchern0t Quote
so back in ancient days, Tamron had the bright idea of creating lenses with interchangeable mounts. They did several versions of this. The one I use is the adaptall 2 with the aperture contacts ie PKA. The question is do people have an adapter per lens or one adapter for all lenses?
I have one adaptor per lens.

PKA on 200-500/5.6, and 90/2.5
PK on 28/2.5
M42 on 28/2.5
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