Adapter Advice

Defer to rmpsrpms when he reads this, but I think I have this right.

Yes, FD to EOS at the camera end, should be easy.

At the lens end, don't quote me but I think those Spiratones came in a T-mount (same diameter as standard M42 - M42x1 - but different thread pitch - M42x0.75 - so they're not interchangeable), which means you'll find that yours already has an adapter that you don't need (T-mount to PK is common too), screwed on. If I'm right, it'll unscrew and then you need T-mount to FD which is as easy as the other end.

Oh, and welcome to Coin Community.

Welcome soundlover! I look forward to seeing your pics.

SD got it all right...only thing I want to add is that there are two types of FD-EOS adapters available. Get the type without glass.

No, that's the wrong adapter - where you see "M42" used as a descriptive term, it refers to the M42x1.0 thread which enjoys such wide popularity that it's become a generic label. You're looking for something specifically described as "T-mount."

The Spiratone should be male-threaded, so the adapter will be female-threaded for it. I don't know which to describe the FD as; I don't know enough about the mount to judge male/female from images of it. Here is an example of what you'll want, understanding it's just the first that I found and I know nothing about the seller or quality of the piece:

http://www.ebay.com/itm/T-2-T-Mount...370444063201