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Classic Camera Repair » Maintenance & Repair » Canonet QL17 Change in shutter speed doesn't change aperture in A mode « Previous Next »

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Cashonly
Tinkerer
Username: Cashonly

Post Number: 1
Registered: 06-2011

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Posted on Sunday, April 22, 2012 - 02:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

I have a Canonet QL17 G-III. It appears that in A mode the shutter speed ring has no effect on the aperture reading. The needle in the viewfinder will show, for example, F4 at 1/500 and 1/4 and all speeds in between. I'm new to rangefinders, but as I understand it the QL17 is shutter speed priority, right? So changing the shutter speed should affect the automatically selected aperture, right?

Changing the ASA does change the meter reading as expected. The shutter speed ring acts as expected in manual mode. When the Canolite D is attached the focus ring also affects the meter reading.

I've searched this site and elsewhere, but can't find anything relating to this problem. Any help would be greatly appreciated. Thanks in advance.
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Old_school
Tinkerer
Username: Old_school

Post Number: 147
Registered: 04-2011

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Posted on Saturday, April 28, 2012 - 03:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Check the Repair manuals section at the top of the page for more information on your camera. The iris should stop down if the meter is activated as the needle swings there is a step clamp that allows for the variance in diameter. Check your energy cell & contacts too. If meter swings free than either the clamp mechanism or the iris ring is gummy & inop. or blades are oiled.
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Mr_flibble
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Username: Mr_flibble

Post Number: 64
Registered: 10-2011

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Posted on Tuesday, May 01, 2012 - 03:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

I might be preaching to the choir here, but the aperture doesn't change until the shutter is tensioned on the QL-17.

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