(no subject)
- From: "David Young" <telyt@xxxxxxxxx>
- To: leica@xxxxxxxxxxxxx
- Date: Tue, 05 Jul 2005 08:21:36 -0700
All:
As most of you know, I'm having an absolute ball with Leica glass on a Canon
20D.
However, the 1.6 magnification factor is both a blessing and a curse.
As a wildlife enthusiast, I find the boost in the 400 Telyt + 2x converter to
an effective 1280mm a huge asset. Not to mention a money saver - not having to
buy a bigger lens! Another big plus is that this combination (at least, using
the old SL 2x converter) suffered noticeable vignetting. It still does, but
with the smaller, 17x23mm sensor, the vignetting does not appear in the final
photo!
If you doubt this, compare:
http://www3.telus.net/~telyt/Heron.htm to
http://www3.telus.net/~telyt/red-neck grebe.htm
The big problem with a 1280mm lens combo, is the incredible lack of Depth of
Field.
Out at Tunkwa, the day before yesterday, I saw a marmot...
See: http://www3.telus.net/~telyt and then click on Featured Photo.
This shot is sharp as a tack ... see his (her?) right (our left) eye. Yet the
DOF is so small at such focal lengths, that the nose and teeth are fuzzy, to
the point where the entire photo looks unsharp. And closing down does not seem
to make any appreciable difference, at least until you get to the point where
you can't use the view finder, and it all becomes pointless.
Still, at high ISOs, the performance in all other respects, is remarkable.
Comments and criticism on the marmot (or any other shot) welcomed, as usual.
Thanks for looking.
David Young,
Logan Lake, BC
CANADA.
Personal Web-site at: http://www3.telus.net/~telyt
Leica Reflex Forum web-page: http://www3.telus.net/~telyt/lrflex.htm
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