GESO -- Kalimar 500mm f8.0 Mirror Telephoto Test
oak at uniserve.com
Sun Oct 4 21:33:58 EDT 2009
On Sun, Oct 04, 2009 at 08:44:37PM -0400, P. J. Alling scripsit:
> Just a few quick shots with El Cheepo Kalimar 500mm mirror lens.
Those are some spiffy egret pictures.
> My conclusion. This isn't a bad little lens. Based on my test shots,
> when I do everything right, I wouldn't be embarrassed to show 8x10 and
> maybe larger prints from images made with it. It does have the
> typical donut shaped out of focus highlights, but they're not
> objectionable if you're careful using it.. It's very lightweight,
> lighter than the F 70-210 and not a lot larger. Unlike most of the
> cast off photo gear people seem to think I can give a good home to
> it's actually useful.
My experience trying to do bird photography with mirror lenses is that a
tripod is really important; the depth-of-field is so damn thin that
inhaling can move the focus point off the bird, never mind any slight
I'm impressed if that was all you took; I rarely get better than 1 in 5
acceptably in focus with the 800mm Rokinon. (It's damn sharp when in
focus; I'm just not so good at manual focus.)
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