Archived posting to the Leica Users Group, 2010/03/19

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Subject: [Leica] How does one check the size of the image circle?
From: imagist3 at mac.com (George Lottermoser)
Date: Fri, 19 Mar 2010 09:08:35 -0500
References: <eb6799211003182210y5914d6e5hbc1a3d4f9971788a@mail.gmail.com>

hold the lens in front of a ground glass
if you wish to "see" the circle.

find a chart of numbers
if you wish to have a precise measurement of the circle

Regards,
George Lottermoser
george at imagist.com
http://www.imagist.com
http://www.imagist.com/blog
http://www.linkedin.com/in/imagist

On Mar 19, 2010, at 12:10 AM, Richard Man wrote:

> I am playing with some ideas. How does one check the actual image  
> circle of
> a lens? This would be smaller format lens (e.g. Leica and the like)  
> and not
> large format lens.
>
> Thanks
>
> -- 
> // richard <http://www.imagecraft.com/> blog: <
> http://imagecraft.wordpress.com>
> // portfolio: <http://www.imagecraft.com/pub/PICS/AnotherCalifornia2>
> // mailing lists: <http://www.imagecraft.com/contact.html>
> [ For technical support on ImageCraft products, please include all  
> previous
> replies in your msgs. ]
>
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In reply to: Message from richard at imagecraft.com (Richard Man) ([Leica] How does one check the size of the image circle?)