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[OM] Re: (OM) E-1 with Zuiko 100/2

Subject: [OM] Re: (OM) E-1 with Zuiko 100/2
From: Moose <olymoose@xxxxxxxxx>
Date: Sun, 17 Feb 2008 14:54:27 -0800
Wayne Harridge wrote:
>
> This sounds a bit like the problem I have had with the Tamron 90/2.5 on
> digital.
>   
Wow, that's quite strong. You didn't have a filter on the lens, 
perchance? I've heard that can cause strong reflection spots.

Do you have a filter on your 24-40, Brian? I had assumed from what you 
said that the problem was on film, but now am not sure.

Moose
> If you get a chance try shooting a plain wall at various apertures and focal
> lengths to see what happens with the round patch.  It could be related to
> light reflecting off the sensor.  With my 90/2.5 it is seemed to become
> apparent at about f11.  Check the following link for some examples:
>
> http://lrh.structuregraphs.com/test/tamron_90_re_reflect.htm


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