Re: Seitz Roundshot 220VR lenses "circle of coverage"

[Jook Leung <jook@xxxxxxxx>]

>>Try this site for exact measurements of lens focal lengths, it may be of
>>some help
>>
>>http://www.photodo.com/lens/
>>
>>Glenn
>
>Glen,
>
>thank you for the info, this helps a lot! But I could not find any info
>info on
>the "circle of coverage". Any tips in this case?
>
>Michael

Photographers for work with view cameras and view camera lenses are
familiar with image circles or "circle of coverage".

If you position a piece of frosted acetate (ie the groundglass) behind the
lens and bring the image into focus, you'll get an idea of how big the
image circle is.

Pinhole cameras have great image circles, anyone try a pinhole lens on a
rotating slit camera. :-)
Simon?


Cheers, Jook

---------------------------------------------------------------
Jook Leung    jook@xxxxxxxxx    http://360vr.com    201.894.5881
     360VR Photography - Immersive Imaging - Virtual Tours