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  1. #1

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    Canon AE-1 AE setting not working

    I picked up a very nice looking AE-1 a while back on a whim because I've never owned a Canon. Came with a breech lock 50mm f/1.8 lens. Battery is new, meter works, DOF preview works, manual mode works as far as aperture is concerned.

    My problem is with the lens aperture set to "A" I cannot get the aperture to do anything but stay in the f/1.8 position. With the back opened (or closed) and the camera set to a low shutter speed, pointed near an overhead light source, the aperture never changes. When the meter says it should be F/11 it just stays wide open.

    I've tried moving the aperture ring back and forth through the range before putting it in "A" as I realized that this camera has a memory, but it doesn't help.

    Any suggestions, or just shoot in manual and be happy?

  2. #2

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    Do you mean the lens doesn't stop down when the shutter is tripped? Is it beyond the first couple frames?
    In life you only get one great dog, one great car, and one great woman. Pet the dog. Drive the car. Make love to the woman. Don't mix them up.

  3. #3

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    Quote Originally Posted by Wolfeye View Post
    Do you mean the lens doesn't stop down when the shutter is tripped? Is it beyond the first couple frames?
    Yup, but only in auto mode. Works fine otherwise. The little pin on the back of the lens that pops out when the aperture is set to "A" is popping out and the little switch it contacts with moves. I'm guessing an electrical disconnect somewhere internally.

  4. #4

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    replace with a FM2, problem solved.

  5. #5
    benjiboy's Avatar
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    Try it with another lens.
    Ben

  6. #6

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    I think the lenses have a two position setting on the aperture. My FD 50 1.4 was not stopping down and when I pushed one of the arms on the back side of the lens over to another position, then it started working. Perhaps yours is the same way. Also, make sure your DOF slider on the camera near the bottom left of the lens is not pushed in.

    I like the original AE-1 cameras more than the AE-1 Programs, even though the P cameras have a substantially better focus screens and a lot more features. Since this is your first Canon, at some point try one of the older FTb or TX cameras some time. They're bigger and heavier, but the build quality is really something. Your lens will fit fine on those.

  7. #7

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    I'm confused by something. You said that it has a breech lock lens but as far as I know those all have a green circle on the aperture ring and not a button. Most of my breech lock lenses are FL lenses, so I could be wrong there. Breech locks do have a peg that swap from A to M. Any chance that is what you have?

  8. #8
    Thomas.Goehler's Avatar
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    No, you are wrong here. Only the oldest breech lock lenses with chrome noses as well as the FL lenses have a green circle, all others have a button or rather a knob for the "A" position.
    The A to M peg does no longer exist in FD-land.
    Canon FD &EF, Mamiya AF, Nikon, Pentax, Praktica, Minolta

  9. #9

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    I may not have any breech locks with the button then. All I have with the button are bayonet mounts.
    "If its not broken, I can't afford it."

  10. #10
    Thomas.Goehler's Avatar
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    Just to show you: breech lock FD with button:

    Click image for larger version. 

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    Canon FD &EF, Mamiya AF, Nikon, Pentax, Praktica, Minolta

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