[genotypewriter]

[quote name='PuxaVida' timestamp='1295440110' post='5640']

However, it still confuses me, howcome the statement "true APO lenses, which have less (or no) spherical aberration, don't show LoCAs and they're usually slower primes in tele field" could be true. I can't explain this to myself with regard to this lens. You guys have any idea?

[/quote]

Slower and/or longer lenses are much easier to correct for CA. Honestly, I haven't seen anything faster than f/2 without LoCA. When it comes to standard photographic lenses, the lowest LoCA/LaCA lenses (from my experience with the exception of the 200 VR) are:



Canon 200 f/2L IS

Nikon 200 f/2 VR

Nikon 200 f/4D AF Micro-Nikkor

Olympus ZD 150 f/2



Nothing takes ones breath away like the 200 f/2L IS... well I'm sure the new double-fluorite autofocus telescopes in photography lens housing (i.e. 300 2.8 IS II and 400 2.8 IS II) would be even better.



But the one that's probably the best of them all:

Coastal Optics 60mm f/4 UV-VIS-IR



Mirror lenses also exhibit exceptionally beautiful handling of CA but their contrast isn't the best.



GTW