Eric Weir wrote:
On Jun 4, 2015, at 6:44 PM, Brian Walters<[email protected]>  wrote:

Quoting Eric Weir<[email protected]>:

Picked up my 16-45/4 from KEH today, put it on the camera, and I’m totally 
baffled. When I look through the viewfinder it’s very dark, almost black. With 
the lens wide open I can barely make out objects in the field of view only when 
pointed directly at a strong light source. And I can’t actuate the shutter. 
Replacing the 16-45 with a 35/2.4 I have absolutely no problem.

I feel really stupid, but i have no idea what’s going on. Any clues?
I sounds as if the pin on the back of the lens mount that opens the aperture 
(as the lens is mounted) is either broken off or bent in some way.  Can you 
compare it with the 35/2.4?

Actually, I’m responding here to several of the suggestions. And first, thanks 
to everyone who responded.

I double checked mounting. Still have the problem. With the lens off the 
camera, pushing the lever the aperture opens and closes smoothly. When I 
compare the levers on the 16-45/4 and the 35/2.4 the one on the 16-45/4 is ben 
in towards the center of the lens. It almost comes into contact with with metal 
shield just inside it.

Should I try bending the lever back to a position similar to that on the 
35/2.4? Or should I just take it back to KEH?

I would try gently bending it back to position and save the time and money of shipping it back. You could also call and ask. There is a small, but non-zero chance that bending it back could break off the lever.

It would also depend on whether you have pliers that are appropriate to the job of grabbing it so that it bends back at the point that it was bent in the first place.



------------------------------------------------------------------------------------------
Eric Weir
Decatur, GA  USA
[email protected]

“...we are a form of invitation to others and to otherness..."

- David Whyte



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Larry Colen  [email protected] (postbox on min4est)

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