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Itsreallydarren
Tinkerer
Username: Itsreallydarren

Post Number: 1
Registered: 01-2008

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Posted on Monday, January 14, 2008 - 06:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

I picked up a G-III QL17 not too long ago and I noticed a strange issue with the aperture blades when I was messing around with it.

The shutter and aperture blades work fine (save for this problem). When I set an f/ stop manually the blades come down, but when I press the shutter button two of the bottom left blades move slightly. The other three blades show no movement at all.

I dont know if I should just leave it be or consider having it CLA'd. Or if its do-able try cleaning out the aperture blades, like the article found here.

I included a link to a short video I made recording the problem.

http://s10.photobucket.com/albums/a143/ItsReallyDarren/?action=view&current=P103 0762.flv

http://s10.photobucket.com/albums/a143/ItsReallyDarren/?action=view&current=P103 0761.flv
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Sillyconguru
Tinkerer
Username: Sillyconguru

Post Number: 3
Registered: 12-2007

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Posted on Tuesday, January 15, 2008 - 04:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

My QL19 does this also. The difference in aperture size is quite small, I wouldn't worry about it.
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Lucas
Tinkerer
Username: Lucas

Post Number: 54
Registered: 07-2006

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Posted on Wednesday, January 16, 2008 - 11:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

My QL19 also has some movement of the blades, although less than yours. I would leave it alone.
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F16sunshyn
Tinkerer
Username: F16sunshyn

Post Number: 33
Registered: 05-2007

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Posted on Thursday, January 24, 2008 - 11:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Both my ql17's do this. I noticed it years ago. It has no effect that I can notice. Of course I have not compared results with a cam that does not have this condition (if there is one?).

Andy
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Wernerjb
Tinkerer
Username: Wernerjb

Post Number: 245
Registered: 07-2006

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Posted on Friday, January 25, 2008 - 02:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Whether in auto or manual mode, the blades somehow have to be activated, and part of the leverage is "active" even in manual mode, this is what causes the movement, this is a feature, not a fault. If you open up a Canonet for finding out how all the internals go together the mechanism turns out to be rather complex, almost over-engineered linkage system, so don't worry, W.

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