question about FD lenses

If I were to use a Tamron adaptal teleconverter with an FD telephoto, could I connect the adaptall to an eos body and achieve infinity focus?

The issue with an FD lens with EOS camera is that the lens lies too far away, so you would need a "neagtive" mount, i.e. a converter that sets the lens inside of the chamber, relative to the normal mount. So adding an adapter to an adapter doesnt seem like it will work, with me knowing any details of what a adaptal TC is.

Ed Mika makes replacement mounts for many FD lenses that allow infinity focus. Check his stuff on ebay.

There is no permanent modification required.

It's actually pretty simple.

Attach the adapt all tele-converter to the lens, then pick up an adapt all adapter with a mount that will achieve infinity on a EOS body(pentax K,Nikon F, M42). Then use the correct EOS adapter from there.

savoirferret wrote in post #16436399
Ed Mika makes replacement mounts for many FD lenses that allow infinity focus. Check his stuff on ebay.

There is no permanent modification required.

I use one of these with a FD600 and a 1.4TC and I can focus to infinity no problem.

Ed Mika only supports Canon lenses, he doesn't make anything for third party ones.

maverick75 wrote in post #16441168
Ed Mika only supports Canon lenses, he doesn't make anything for third party ones.

Good point since I don't own or buy anything other than Canon I never thought about it.
If you go to his site he is into the 600 and 800 L series lens more than anything else.

His adapter makes it possible to have a long reach lens for about 10Grand less than a new AF 600mm.

I was planning to get his 50mm 1.4 adapter, but then the M went on sale.

Thankfully the adapter for that camera was just $12 Main reason I picked up that little camera.

If it's an adaptall, why not get an AdaptAll Nikon, then a simple Nikon to EOS?

KirkS518 wrote in post #16443539
If it's an adaptall, why not get an AdaptAll Nikon, then a simple Nikon to EOS?

Hey im open to anything as long as I can get infinity focus. I am really wanting one of the old fluorite 300mm f2.8 or 5.6's

I think my suggestion would do that. If you get the Adaptall to Nikon mount (eliminating the FD mount all together), you can then use a Nikon to EOS adapter which requires no additional optics. You could also go with Pentax, Yashica, Olympus, or even Ricoh. Any of those won't require additional glass to achieve infinity focus.

That was the original purpose of the Adaptall series - allow retailers to stock one lens, and a number of different mounts, so they didn't have to have an inventory of the expensive lenses with corresponding mounts for their potential customers. A Nikon guy walks in, slap on a Nikon mount, a Canon guy? Canon mount, and so on.

calypsob wrote in post #16443706
Hey im open to anything as long as I can get infinity focus. I am really wanting one of the old fluorite 300mm f2.8 or 5.6's

The question is, do you really want to use the lens with that adapter/teleconverter, or do you just want to be able to use the old FD lenses? I have an FD 300 2.8L and an FD 600mm 4.5. I use both of them with the Ed Mika adapter. They achieve infinity focus just fine on my 5D2. I also have the FD 1.4 and 2x teleconverters. All work just fine.

Scatterbrained wrote in post #16443956
The question is, do you really want to use the lens with that adapter/teleconverter, or do you just want to be able to use the old FD lenses? I have an FD 300 2.8L and an FD 600mm 4.5. I use both of them with the Ed Mika adapter. They achieve infinity focus just fine on my 5D2. I also have the FD 1.4 and 2x teleconverters. All work just fine.

I think the Ed Mika conversion would be ideal if it were a true FD lens. But an adaptall FD lens is not an FD lens. It's a generic, no-mount lens, that accepts various mount adapters, with the FD mount attached. From a cost perspective, a Mika conversion would be about 5x (or more) what it would cost to get a Nikon Adaptall and then a Nikon-EOS adapter. If this were true FD mount, then the Mika would be the way to go to maintain IQ, but in this case, the IQ can be maintained without the cost.

EDIT - I am only using Nikon as a representative mount that can be used, as I stated earlier, there are others.

KirkS518 wrote in post #16444040
I think the Ed Mika conversion would be ideal if it were a true FD lens. But an adaptall FD lens is not an FD lens. It's a generic, no-mount lens, that accepts various mount adapters, with the FD mount attached. From a cost perspective, a Mika conversion would be about 5x (or more) what it would cost to get a Nikon Adaptall and then a Nikon-EOS adapter. If this were true FD mount, then the Mika would be the way to go to maintain IQ, but in this case, the IQ can be maintained without the cost.

What I get from what the OP said in the first post and his follow up is that he wants to use the old FD telephoto lenses and is wondering if using the adapt all will cure the lack of infinity focus. His primary concern seems to be using an FD telephoto and getting infinity focus. With the EdMika adapter you can use the old FD telephotos and have infinity focus.

Whoops!

You're right. I thought it was a Tamron with an FD mount.

Ignore my previous posts, OP!!!