On Sun, May 03, 2009 at 10:15:28PM +0300, Margus Männik scripsit:
> Hi,
>
> You know, there's no infinity ;)... 

But everything that rises must converge. :)

> but this one should be as infinite  as it can get
> http://nagi.ee/photos/photo_sizes.php?id=10451261&size=o&album_id=148643:

Thank you!

15:52 camera % exiftool [email protected]| grep -i length
Focal Length                    : 250.0 mm
SR Focal Length                 : 244 mm
Focal Length In 35mm Format     : 375 mm
Focal Length                    : 250.0 mm (35 mm equivalent: 375.0 mm)

So it looks like it gets within 6mm of 250 if the subject is far enough
away.

The rendering of that particular subject's not bad at all.

I do wonder about the optical design; the nominally 200mm shot of the
tomato basket posted by Richard Day
(http://forums.dpreview.com/forums/read.asp?forum=1036&message=31709520)
shows a SR focal length of 148mm.  For a trombone lens that seems
peculiar.

-- Graydon

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