photo:canonef85mmf1.2
Canon EF 85mm f/1.2L USM lenses
introduction
a unique, heavy, short telephoto rectilinear prime lens with incredibly shallow
depth of field (DOF) but this comes at a considerable cost in terms of price, weight, size and slow AF
two versions:
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which 85mmm lens to buy?
the 85mm f/1.2L II gives shallowest
depth of field (DOF) and least flare but troublesome vignetting and long. CA
the
Canon EF 85mm f/1.8 USM lens is much cheaper, gives sharp photos wide open with nice bokeh and is much faster AF but has troublesome lateral CA wide open
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specs
Canon EF 85mm f/1.2L version I
Canon EF 85mm f/1.2L II
85mm f/1.2 lens
8 elements in 7 groups incl. 1x ASPH and 1x UD
USM AF with manual override being an indirect wired electronic system
8 blades round to f/2.0, octagonal from f/4 onwards
IR index
front focusing but do not rotate
close focus 0.95m giving 0.11x magnification
72mm filter thread
91.5mm x 84mm
1025g
$A2499
reviews
version II
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changes magnification as it focuses
bokeh is pleasant
optical focus screens only show image as at f/2.5 unless you buy a high precision manual focus screen
minor barrel distortion
more susceptible to flare from light outside the image than other lenses - use the lens hood!
“complete lack of coma or other aberrations wide-open for star images”
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1% distortion
1.8EV vignetting
excellent centre sharpness wide open, and reasonable corners but sharpest across the field at f/4-f/5.6
lat. CA minimal wide open but worst at f/4
smooth bokeh
considerable long. CA
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T1.5, 0.3% distortion, 2EV vignetting, 10 micron CA
soft edges wide open, improve by f/5.6
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photo/canonef85mmf1.2.txt · Last modified: 2019/07/08 12:01 by gary1