Darren's words:
Tried the Orion Nebula with the 135/2.5 - too clear skies, lots of
clouds,
bad results - and purple fringing.
I got to thinking that maybe you are referring to the Bayonet 135/2.5.
If so, the purple fringing is certainly understandable.
I'm talking about the last version of the Super-Multi-Coated Takumar
135mm f2.5, which also then became the original SMC K version (not the
same as the later "Bayonet" version).
The Bayonet version is a $50-60 lens. The v2 Takumar & SMC K version
are more like $175-225 but bargains can be found.
Darren, I'm talking exactly about the SMC Tak 135/2.5, m42 & 58mm
filters. Mine gets purple fringes wide open, not so intense but
noticeable. It's also rather battered, much used since 1976. Bought a K
Takumar 135/ 2.5 but still got to test it - someday soon, not in a
hurry... it's expected to be less than outstanding but useable. I'd
delay my astro enablements if a VG K135/ 2.5 came my way... really like
that lens and mine is getting old.
I'm trying to repeat photo and processing, and re-processing the first
test - did it quickly and didn't enjoy the results.
lf
--
luiz felipe
luiz.felipe at luizfelipe.fot.br
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