Return my 35 Summicron M ASPH?

B

Berliner

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Apr 1, 2005
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I got this from KEH last week. It was EX+ condition. However, when I look at the front of the lens. It appears that there is a 'secondary' aperture blade 'stuck' open-in the widest position , in front of the actual aperture. It looks like I can see the points of this secondary aperture from the front of the lens. They do not show from the lens mount side, so they are not intruding on the image area, and the aperture clicks thru every stop accurately. Has anyone seen this before? Is it normal, or should I exchange it? Does anyone have a picture to post of the front of the 35 Summicron M ASPH?
 
I think I know what you are referring to. I bought mine new and its supposed to look like that, but post a picture if you can.
 
Thanks Oddball. I wish I could post a picture. I am on a biz trip with no access to a digicam. With the lens set on any aperture, these 'points' 'circle' the rim of the actual aperture--looking from the front. I think I have seen this in pictures of the lens I have seen online, but it is so hard to tell from an online picture.
 
It's just part of the diaphragm mechanism. Perfectly normal.

Berliner said:
Thanks Oddball. I wish I could post a picture. I am on a biz trip with no access to a digicam. With the lens set on any aperture, these 'points' 'circle' the rim of the actual aperture--looking from the front. I think I have seen this in pictures of the lens I have seen online, but it is so hard to tell from an online picture.
Click to expand...
 
My 35 cron ASPH is like that, too, and I've wondered that myself. Glad to hear it seems to be normal. Mine certainly shoots normally and the images look good.
 
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