FD adaptor do they work the autofocus

[Corsa]

Right then canon FD lens on a 20d if I was to buy an adaptor would the autofocus etc work


Dave

 

[HoppyUK]

No chance. Canon AF mechanism is in the lens, and FD lenses do not have any mechanism. Focusing is strictly manual. Lens aparture control is also manual, with stop-down metering on Av only.

Even worse, FD lenses will not focus on infinity with an EOS camera, without an extra lens in the adapter, which not only increases focal length but also reduces image quality.

Here's an adapter - £55 http://www.srb-griturn.com/canon-fd-lenses-on-canon-eos-cameras-1204-p.asp

 

[MartynK]

I believe some people in the US are machining the FD lens mounts to fit the EOS cameras without an adapter, but I've no idea how much this costs, and it won't give you AF. Very few FD lenses had it anyway.