Previously I set the value 1.8mm or 1.85mm, however some simulation results assuming exit pupil distance didn\'t match my field-test experience. So I changed that value to 2.55mm, eventually simulation results (e.g. spot diagrams) look so close to test samples.
I believe 2.55mm suits for all A7 series otherwise genuine FE lenses optimized for the stack must not work.
And this is my latest simulation results:
When you use Summilux-M 35mm ASPH on A7, f=4m PC filter will greatly help corner performance.
Also Kolari / Leica users will get better sharpness with f=8m PC!
Though Opto-sigma\'s lineup is up to 5m, I don\'t know where I can buy 8m PC .
Maybe ZM 1.4/35\'s optimal P-C is also 4m/8m, if its exit pupil distance is same as the LUX35.
Previously I set the value 1.8mm or 1.85mm, however some simulation results assuming exit pupil distance didn\'t match my field-test experience. So I changed that value to 2.55mm, eventually simulation results (e.g. spot diagrams) look so close to test samples.
And this is my latest simulation results:
When you use Summilux-M 35mm ASPH on A7, f=4m PC filter will greatly help corner performance.
Also for Kolari / Leica users will also gets better sharpness with f=8m PC!
Though Opto-sigma\'s lineup is up to 5m, I don\'t know where I can buy 8m PC .
.