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Successfully mounted Tamron Adaptall to SD14

Hi Folks,

I posted this over on dpreview, but I figured you guys would like to know here as well. I got a Tamron SP Macro 90mm f/2.5 lens to mount to my SD14 beautifully. It's like it was made for the camera. To do this, I bought an Adaptall-2 to M42 adapter, and mounted that against the M42 to SA adapter I already had on my camera. The aperture ring even lines up perfectly. It focuses to infinity and takes some lovely shots. I haven't got any worth posting yet because it's still raining, but I just wanted to show that there is a HECK of a deal to be had on these. It is a great alternative to the 70mm and 105mm EX macros. This cost me a total of $138 in near new condition for everything.

If anyone is interested in doing this and has questions, I'm always happy to help.



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Well-Known Member
Thanks for posting with images....I converted my SD14 to Nikon F...I wish I would have thought of that first...LOL

Tony C.


Well-Known Member
Very cool,
thanks for sharin!
I can't wait to see some pics from it.
Well, I've been dying to take some pictures, but the weather here has been crummy. Today, I brought my gear to work and I'm going to head out a bit early to go try and shoot some macro pictures. It just rained, so maybe some nice water droplets and things of that nature. I'll definitely post some samples if I make it out today!

Okay, I got out for some shots finally! Still pretty overcast here, but what the heck.

1 and 2 were shot at f/5.6.

3, 4 and 5 were shot wide open (f/2.5)

6 was shot at f/8 to compare with 5.

7 and 8 were shot wide open.

Needless to say, I'm in love with this lens and I find it quite superb. My manual focus still needs some honing, so blame any lack of sharpness on user error. This lens is, and I really hate to be cliche, "tack sharp." Any comments welcome unless they in any way, shape or form, belittle my photographic skills. Just at will.




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Hi Collin,
thanks for sharing.
To me the overall performance looks very good.
I think you got a superb lense.
Work with it and your focussing problems,if there any at all,are gone.:)
Thanks Uwe. The pleasure is all mine for sharing. I figured that alternatives to the usual Sigma SA mount would be welcome. :)

I will continue to shoot and see what this lens can do.




Well-Known Member
Looks like you've got a winner there. I'll definitely have to keep the adaptall lenses in mind now.

I'll agree, it's tough to get used to these manual-focus lenses.


Well-Known Member
Very beautiful images Collin,
An excellent lens! But as always, it's got to be in capable hands to bring out it's potential. I think there's going to be a run on adaptall lenses now, lol.
Number two is my favorite. And comparing the shots 5 and 6 I like the bokeh on 6 better. But all the images are "tack sharp" I don't think you're having any focus issues.
Thanks for sharing!
Thanks, Gentlemen.

I just purchased another Adaptall-2 lens for what I thought was a steal! It was one of the best zooms back in the day.

For $23, I won an auction on a like-new Tamron SP 28-80mm f/3.5-4.2 with the BBAR multi-coating. This zoom outperformed many manufacturers' zooms, even if it is a tad slow. Can't wait to post how that one works out!

Next on the list? The 80-200mm f/2.8 SP :)



Well-Known Member
Can you post a picture of what the adaptall mount looks like? I have no idea what to look for when I go around to the antique/flea markets :)
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Hi Jason,

Not sure if I'm allowed to link to other forums, but here is a thread located on mflenses that shows how to modify the Adaptall-2 to M42 adapter. While that may not be necessary in your case, there are some good images of it.

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By the way, I am having some issues stopping down my lens beyond f/8. It seems to go from f/2.5 to f/8 flawlessly, but the adapter is not pushing the pin far enough to allow it to close further. I am investigating as to whether or not the Adaptall-2 to Pentax-K mount might be a better solution or not. Only one way to find out. :)

Do you have any Adaptall lenses? If not, I've done quite a bit of research and can tell you some nice ones to look for.



There are several perfectly working ADAPTALL mount adaptors for SIGMA SD14:
Pentax K
Pentax KA

You have to try if the small pin for the aperture value alignment on the adaptor has to be shortened or not. In my case with the SD14 everything works as is and could be used on a Pentax camera too.
Especially the TAMRON SP lens range is worth mentioning as you can find them for bargain prices nowadays - used to be the premium range in the manual focus days...

greetz !