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Re: [OM] "Cheap" 25mm Automatic Extension Tube

Subject: Re: [OM] "Cheap" 25mm Automatic Extension Tube
From: "Terry and Tracey" <foxcroft@xxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 19 Mar 1999 18:22:14 +1000

>At this point, I have only tried the "tubes" with a 50mm 1.8 and can see no
>vignetting.   I will check this out further and keep you informed.  But,
>from what I see initially, this will work out fine.
>Now, let's see, I still have a 2x teleconvertor coming through eBay...


You shouldn't get vignetting with tubes. I think it actually decreases any
already there.

Stacking lenses is the opposite. I need to go to 150mm + tubes or 200mm to
stop vignetting with a reverse mounted 50mm.

Foxy

Foxy





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