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Re: [OM] 135 4.5

Subject: Re: [OM] 135 4.5
From: WKato@xxxxxxx
Date: Tue, 21 Mar 2000 02:37:16 EST
In a message dated 00-03-21 01:43:08 EST, you write:

> Great to know that shade works on the 90 also. More shade trivia, does the 
> metal shade for the 50's / 35 / 28/3.5 also work with the 28/2.8? I've 
> thinking of trying it and this would save a roll of film if someone knew 
the 
> answer.
>  
>  Thanks
>  
>  Bill Biesele

You don't really need to waste any film to test a hood. Put a hood (the test 
subject) on the lens, open the back, and sight through the corner of the 
shutter opening on "B".  If the light is suddenly occluded as you get closer 
and closer to the corner then you will have vignetting.  As another list 
member pointed out, you can sight through the lens with hood on, through the 
open shutter against a bright background and try to visualize the corner.  If 
you can't, then there is vignetting.  Also, made sure the lens is racked to 
infinity to do this test as the image cone on the film will be the smallest. 
This said, I don't think the hood will work on the 28/2.8.

Warren

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