k-h.a.w wrote:
IMHO the 4/3 tunas, little tuna 150/2.0, zoom tuna 90-250/2.8, and big tuna 300/2.8 are in a league of their own and are unmatched by m4/3 lenses. They also seem to shine on the E-M1.2 with the EC-14 and EC-20.
My set is slightly back focusing on the E-M1.2. However, that can be easily corrected with an AutoFocusMicroAdjustment AFMA of -2 or -3. AFMAs can be set from -20 to +20.
It should be pointed out that a lens and a lens+EC-14 and a lens+EC-20 each have their own named AFMA. After an image is taken the AFMA used can be viewed in camera or with OV3. It also should be noted that the Tele and Wide end of zoom tuna each have their own AFMA.
BTW each prime lens actually has a matrix of AFMAs for groups of focus points, each zoom lens a matrix for Tele and Wide. However there is an easy way to set them all to the same value.
K-H.
Not quite right, K-H. Olympus have said, when they launched the 300 PRO, that this is the sharpest lens that they have ever produced in their long history of making fine optics ... and the MTF charts bear testimony to this. Bokeh and OOF rendering is a different story, of course, and f2.8 will always be superior to f4.
Apr 27, 2017 at 11:52 AM
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