topic Re: Auto focus not working in EOS DSLR & Mirrorless Cameras

Auto focus not working - Canon AE-1 Program

Afzski — Tue, 31 Oct 2023 23:14:16 GMT

My AE 1 P will focus but not take picture when lens is switched to AF, in MF it will take picture. I have 2 lens and works the same with either

Re: Auto focus not working

jrhoffman75 — Tue, 31 Oct 2023 23:12:34 GMT

Must be spam. AE-1 Program is not an AF camera.
https://global.canon/en/c-museum/product/film103.html

Re: Auto focus not working - Canon AE-1 Program

Afzski — Tue, 31 Oct 2023 23:21:14 GMT

Funny - i've had this camera for 15 years and it always worked

Re: Auto focus not working

kvbarkley — Wed, 01 Nov 2023 03:15:07 GMT

While the AE-1Program was not an AF camera, Canon made 4 self-focusing FD mount lenses.

https://en.wikipedia.org/wiki/Canon_FD_lens_mount

Re: Auto focus not working

Afzski — Wed, 01 Nov 2023 04:11:43 GMT

So would the body be the problem since it acts the same with either lens??

Re: Auto focus not working - Canon AE-1 Program

FloridaDrafter — Wed, 01 Nov 2023 05:21:09 GMT

@Afzski wrote:
My AE 1 P will focus but not take picture when lens is switched to AF, in MF it will take picture. I have 2 lens and works the same with either

Which lens are you using? Please be specific with the name.

Re: Auto focus not working

jrhoffman75 — Wed, 01 Nov 2023 10:23:33 GMT

I used, and still have, an AE-1P.
While that is correct,

“Before the FD mount was obsoleted by the EOS system, Canon built four autofocus lenses. Of these, only the FD 35-70mm f/4 AF was capable of autofocus on all FD cameras. The others, known as AC lenses, offered autofocus only on the T80 camera.

The FD 35-70mm f/4 AF contained an entirely independent autofocus system and was among the world's first autofocus zoom lenses (the Pentax ME F was the first[7] ). The autofocus system was activated by a button on the side of the lens, and involved no communication with the camera body. It was reasonably accurate with still subjects, but was too slow to be a practical solution for moving subjects such as sports.”