Vivitar made the Series 1 Flat Field 90-180mm 4.5 flat field zoom. I
have one but have never tried it on a digital body, it has that stupid
over sized stop down lever protector flange that the original Series 1
lenses were affected with. It only focused to 1:2, (I do have other
ways to get larger reproduction ratios), at 180mm but it's very sharp on
film. Someday I'll have to Dremal the offending excess metal off to try
it on a digital camera. I've only been saying that for about 10 years
now. It's a lovely hunk of glass and metal, a fine lens and it would
probably be quite handy for self defense.
It's a K mount s
On 4/29/2016 4:52 PM, Larry Colen wrote:
It seems that the longest macro currently produced for K-mount might
be about 100mm. I've heard mention of a 200mm, and I have an old
manual focus 135 1:2 macro.
Two part question:
What are the options for long focal length macros? How are they
optically? Are there any teleconverters that do well? Or, am I just
better off cropping tighter?
In a similar vein, are there technical reasons for the dearth of long
macro lenses? Or is it just that the market for them is too small for
them to be commercially viable?
--
I don't want to achieve immortality through my work; I want to achieve
immortality through not dying.
-- Woody Allen
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