Lex writes:
<< I'm also curious about the 85/2 since it's smallish and promoted as
being corrected for close up use. I'm wondering how well corrected when
pushed beyond its designed minimum focus range? >>
Probably not bad for 3D macro subjects, versus 2D which need flat field.
Be sure and keep the helical racked out and mix or match auto extension
tubes to focus, otherwise you are defeating the abberration correction
acheived by the floating elements.
Interesting lens test in Popular Photography this month. They look at
the new manual focusing 60mm ? macro for Canon EOS. While it works from
5:1 to 1:1 (5x to 1x), it is clearly optimized for 4:1 Kind of tells us
how hard it is to design a macro lens for a wide magnification ratio.
Gary Reese
Las Vegas, NV
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