wildestseas Posted June 7, 2010 Share Posted June 7, 2010 <p>I picked up a Canon AC 75-200mm f/4.5 zoom lens used, thinking it was an EOS mount. It turns out that it is only compatible with the T80 and a few other FD bodies in manual focus mode. <br> The lens looks like it's in great condition - but I've noticed that the aperture blades are closed down to about f/8. I can't control them by any of the levers on the back of the lens mount. This strikes me as a bit odd as most lenses stay wide open until you fire the shutter. <br> The AC lenses do not have aperture controls on the lens. You have to control this electronically from the camera body, so there's a chance that it is normal for the lens to stop down a bit when you take it off the camera. <br> Can any of you with AC lenses tell me if this is normal for the aperture to stay stopped-down a bit when it's off the camera? It could save me an enormous headache in the future if I try to sell it again. Thanks in advance! </p> Link to comment Share on other sites More sharing options...
awahlster Posted June 7, 2010 Share Posted June 7, 2010 <p>perfectly normal it will open to max when mounted on a body. Nothing wrong with it. It's normal with ALL FD mount lenses</p> Link to comment Share on other sites More sharing options...
wildestseas Posted June 7, 2010 Author Share Posted June 7, 2010 <p>Thanks Mark - I really appreciate it! </p> Link to comment Share on other sites More sharing options...
bsharpe411 Posted June 8, 2010 Share Posted June 8, 2010 <p>While it's not a very practical combination, the AC lenses can be used with any Canon FD camera that has shutter priority exposure capability...for instance AE-1, A-1, T-90, or EF. Manual focus is ackward but is possible and the lenses aren't outstanding examples of FD lens design.</p> <p>I have a T-80 along with the 50mm & 35-70mm lenses. As Canon's first (and only) attempt at entering the auto-focus FD market, I figured it was worth being in my collection. The focus mechanism is well below modern EOS standards, but it usually works and I've shot many rolls with this combo.</p> Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now