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

Subject: Re: [OM] "Cheap" 25mm Automatic Extension Tube
From: "George M." <george@xxxxxxxxxxxxxxxxxx>
Date: Mon, 22 Mar 1999 21:56:37 -0800
Joel Wilcox wrote:
> 
> At 05:50 PM 3/22/99 -0600, you wrote:
> >On Mon, Mar 22, 1999 at 04:15:06PM -0600, Joel Wilcox wrote:
> >> What are you finding in the prairie these days?  Wasn't too bad a couple
> >> weeks back with that heavy snow on the tall grass. Spring beauties will be
> >> here before long, and dutchman's breeches.
> >
> >Hm. I'm gonna be in bluebonnet country this coming weekend...oughtta take
> >the 50/2 Zuiko Macro and the 90/2.5 Tamron SP Macro out for a shootout, so
> >to speak. Does the 50/2 want 25mm of extension to get to 1:1 too?
> >
> 
> No. I believe that for 1:1 you'd need 50mm of extension.
> 
> Joel
> 

Right. And 25mm of that 50 is built into the lens. That's how it gets to
1:2 w/o tubes.

George

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