Can't mount an FD lens to a A1

[Odot]

My GF inherited an A1 and for some odd reason it wont mount any FD lenses, Canon or third party. You can "turn it" to a point but it won't click like it usually does. This is probably some real rookie shit but i really dont know what the issue may be.

Heres an images of the 50 FD and the camera - any idea?

 

[Mackinaw]

It won't click. This is a breechlock FD lens. You turn the ring until it's tight. Later FDn lenses (with no ring) will click when mounted. but not FD lenses.

Jim B.

 

[Odot]

It won't click. This is a breechlock FD lens. You turn the ring until it's tight. Later FDn lenses (with no ring) will click when mounted. but not FD lenses.

Jim B.

The aperture rings are also not moving, on any of the lenses. Wasnt there a lever to be pushed or something? Its a change her Dad used it for his digital camera as well and i think this is where you have to press someting

 

[Odot]

I just found this, not sure how this could help but it made the aperture blades move again

 

[Willyekerslike]

The ring is not supposed to move unless you mate the lens to the camera or rear lens cap. When you do this the lock will be released and you can turn the ring to lock the lens.

 

[gone]

Something is not right w/ your camera. Look at the lil arm on the right inside the lens opening, it's supposed to be up. Yours is down, and a lens probably won't mount like that. Try firing the camera a few times and see if that arm will go down. Look at the pic below and you'll see what I'm talking about.

https://www.ebay.com/itm/Vintage-Ca...361375?hash=item46c554851f:g:CF8AAOSwH8ZgdgQC

 

[Odot]

Something is not right w/ your camera. Look at the lil arm on the right inside the lens opening, it's supposed to be up. Yours is down, and a lens probably won't mount like that. Try firing the camera a few times and see if that arm will go down. Look at the pic below and you'll see what I'm talking about.

https://www.ebay.com/itm/Vintage-Ca...361375?hash=item46c554851f:g:CF8AAOSwH8ZgdgQC

Thanks for pointing this out. The arm on the right hand side was able to go up, not sure why and how it went down in the first place since it has been up the whole time. Now its even more odd.

 

[AgX]

The aperture rings are also not moving, on any of the lenses. Wasnt there a lever to be pushed or something? Its a change her Dad used it for his digital camera as well and i think this is where you have to press someting

Canon FDold lenses typically got an arresting pin that needs to be pressed before being able to twist their aperture ring off the A(utomatic) setting.

 

[AgX]

It won't click. This is a breechlock FD lens. You turn the ring until it's tight. Later FDn lenses (with no ring) will click when mounted. but not FD lenses.

With FDnew lenses their barrel is held tight by springs, with FDold lenses their barrel is held tight by a nut.
As you say this nut has no arrest.

 

[John Koehrer]

It's an earlier breech lock. Newer breech locks had a lock on the ring that held the locking ring in alignment with the
notch on the lens mount. Looking at the back of the lens, the pin has to be fully exposed(centered more or less)
so the notch and pin line up. Obviously it won't mount if it ain't lined up.

 

[AgX]

It's an earlier breech lock. Newer breech locks had a lock on the ring that held the locking ring in alignment with the

The latter have an automatic closing mechanism, that twists the breech-lock ring a tiny bit, so that the lens is provisionally fastened and just have to be tightened by hand.

But this is only a tiny advancement in handling and does not affect the basic breech-lock handling. Typically extenders, extension tubes and non-Canon lenses lack this automatic feature. It is not a matter of new or old.

 

[John Koehrer]

The latter have an automatic closing mechanism, that twists the breech-lock ring a tiny bit, so that the lens is provisionally fastened and just have to be tightened by hand.

But this is only a tiny advancement in handling and does not affect the basic breech-lock handling. Typically extenders, extension tubes and non-Canon lenses lack this automatic feature. It is not a matter of new or old.

Sort of. The older lenses didn't have the convenience of the "tiny advancement"
and the OP was dealing with a lens not mounting.
FWIW the on newer lens if it wasn't taken off properly would cause the breech to not line up with the notch
on the mount causing the same problem.

No big thing.

 

[tballphoto]

Some FTBn QL cameras will only work with the old or the new style mount.