Adaptall 1 to Pentax K - no adapter available?

Snakeisthestuff · Joined: 14 Sep 2010 Posts: 6

I have bought recently an old 300mm f5.6 Tamron Adaptall lens and acquired an adaptall 2 adapter because there are no adaptall 1 adapter and i thought of backward compatibility.

But the adapter won`t fit! Anyone got a suggestion where to find an fitting adapter for my Pentax K10D?

As you can see the Adaptall 2 has some sort of screw mount inside whereas the adaptall adapter is only pushed inside and screwed with the loose ring.
Also the Adaptall 1 adapter has a big lever which controls the shutter in the lens, the adaptall 2 adapter has only a small lever which cant do anything for this lens.

Due to the screw mount of the adaptall 2 adapter it won't even fit in the lens mount.

Hope someone can help me Crying or Very sad

Here are some pics of the ebay adaptall 2 pentax adapter the lens mount and the adaptall 1 konica adapter which came with the lens:

mo · Expire: 2016-07-30

Hi
Post your photos in the 2nd post as they will not show in the first post...it is an anti spam feature... Very Happy

Snakeisthestuff · Joined: 14 Sep 2010 Posts: 6

Thx man, i thought i was too stupid to link a picture xD.

The Adaptall 2 pentax adapter i bought on ebay:

The lens mount:

The Adaptall 1 konica adapter which came with the lens:

Scheimpflug · Expire: 2011-11-18

mo · Expire: 2016-07-30

Can you post a bigger photo of the lens itself as I think it is an earlier Auto Tamron adaptamatic lens...which is another mount altogether.

Snakeisthestuff · Joined: 14 Sep 2010 Posts: 6

Sry for the "man" Embarassed

.
Indeed its an old Auto Tamron 300mm f5.6 no coating probably.

mo · Expire: 2016-07-30

No worries,I have been called worse.. Rolling Eyes

and it's the internet how were you to know!! Wink

Yes that is an adaptamatic,Not sure if you get a k mount in that age group.You may have to buy an M42 adaptamatic mount and then buy the m42 to k mount adapter(I have the original one for my K200D..just because I like the original types and it fits nicely in the camera)...not a bad investment as then you can use a whole lot more m42 lenses on your K10D Very Happy

Snakeisthestuff · Joined: 14 Sep 2010 Posts: 6

M42 adapter is no problem, I also bought an genuine in Japan for my 50mm Takumar. Unfortunetly ebay doesnt list any adapt-a-matic adapters for pentax only nikon F mount Crying or Very sad

Maybe buying an Konica to pentax adapter is on option, as i have already an adapt-a-matic Konica adapter?

Univer · Joined: 30 Jun 2009 Posts: 282

Hi,

I don't think Konica-to-Pentax is a viable option, because of the difference in registration distance. (Actually, if memory serves, Konica is difficult to adapt to anything, because its registration distance is so short.)

My recommendation would be to pick up another Adaptamatic lens, this time one that's already fitted with an M42 adapter. Then you can swap the adapter between lenses as needed. Adaptamatic adapters, sold separately, are infrequently encountered. I think I have five or six Adaptamatic lenses, and only two or three adapters for them. In practice, that hasn't proven to be much of an inconvenience.

And since many of the Adaptamatic-era Tamrons are very nice lenses, it's really not such a bad thing to have to buy another one.

Cheers,

Jon

PS I don't believe a K-mount Adaptamatic adapter exists. The Adaptamatic system had come and gone by the time Pentax abandoned the M42 mount.

Snakeisthestuff · Joined: 14 Sep 2010 Posts: 6

Yeah I think you are right. But how to check if the lens is adapt-a-matic and not adaptall? I checked ebay and there are very few adapt-a-matic lenses.

But there are many Tamron m42 lenses, but it`s hard to recognize the adapter. Are there any m42 adaptall lenses at all?

Univer · Joined: 30 Jun 2009 Posts: 282

Hi,

If you're searching eBay, then you need to be aware (as you've already discovered) that very few lenses are listed as "Adaptamatics." A seller would have to have independent knowledge that a lens belongs to that series; it's not like the term "Adaptamatic" appears on the lenses themselves.

That doesn't mean that the lenses aren't there. I suggest that you head over to this site, click on the Adaptamatic link, and familiarize yourself with the lenses. There aren't that many of them, and they do have rather distinctive styling. Then search for Tamrons (maybe restricting the search to used lenses, just to make things easier), and identify the Adaptamatics among them.

The lenses are there to be had, and often at fair prices, if one is patient and watchful.

Good luck!

Jon

Snakeisthestuff · Joined: 14 Sep 2010 Posts: 6

Thanks very much to all of you. I will do my best Smile

Lloydy · Expire: 2022-01-01

SRB Griturn in the UK sell a big range of adaptors, and can make specials. They might be able to help.

http://www.srb-griturn.com/camera-adaptors-306-c.asp

I've used this company for a long time and their stuff is good quality and they ship internationally.

visualopsins · Expire: 2025-04-11

I have Adaptall-1 for Canon FTb, Olympus OM-1, Konica EE f/3.5, and Konica EE f/4.5. New old stock, with boxes & plastic cases. Would any of those be of use? Probably not, but maybe somebody else reading this thread will need one.

mo · Expire: 2016-07-30

Maybe search using Auto Tamron...not sure if the later series use that name..I have the 135/2.8 and I like it.

Scheimpflug · Expire: 2011-11-18

Univer · Joined: 30 Jun 2009 Posts: 282

Hi,

Yes, there are a few search strategies that can help. But I honestly believe there's no substitute for learning to recognize the distinctive Adaptamatic styling - even in an eBay thumbnail image.

For some reason, I also seem to see a non-trivial number of cameras sold with Adaptamatic lenses fitted to them. You have to wonder where the original normal lens went.

Note, too, that the Tamron-F lenses, which can look very much like Adaptamatics at a glance, were fixed-mount lenses - no adapter. Those, at least, are identified on the beauty ring, so (as long as there's a decent listing photo) the risk of misidentification isn't terribly high.

Cheers,

Jon

mo · Expire: 2016-07-30

Hi Jon
Do you have any Tamron-F lenses?

Univer · Joined: 30 Jun 2009 Posts: 282

Hi Mo,

Just one: a 200/3.5 in M42 mount.

I'm embarrassed Embarassed

to admit that I haven't yet done any shooting with that one.

Cheers,

Jon

mo · Expire: 2016-07-30

I was wondering could you post an image of it as I have read on the Adaptall site about the coming soon page for "F mount" but it has never been finished and put up.
I would like to know what it looks like, it seems to be a little known or not easily found model of a Tamron...would that be true?