photo:tokina300mmf6.3
Kenko / Tokina 300mm f/6.3 macro mirror lens for MFT
introduction
this super telephoto lens introduced in 2011?? is a catadioptric mirror lens, and as with all such
mirror lenses, share the following characteristics:
specs
300mm focal length and field of view (4° on Micro Four Thirds 2x crop) at infinity focus
fixed f/6.3 aperture
13 lens elements, 11 groups (multicoated)
closest focus 0.88m (1:2 macro)
55mm filter thread
mm diameter, 66mm long and 298g
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~$199
reviews
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focus can be difficult as three quarters of a turn takes you from infinity to 0.8m - it really needs a micro-focus gearing to enable accurate manual focus for distances > 10m
“good” sharpness in the studio but real world will likely be worse as poor focus accuracy is likely
1.12EV vignetting; low contrast
minimal CA, minimal but complex pincushion distortion (~1%)
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photo/tokina300mmf6.3.txt · Last modified: 2014/05/18 17:07 by gary1