Originally posted by ScooterMaxi Jim In tests, the FA 50/1.4 is sharper than the DA 50 across the frame... by a wide margin. Also, the FA 35 is sharper than the DA 35 across the frame. The bokeh and vignetting of the DA 35 also does not compete. The 35mm macro is the sharpest, of course. Center sharpness can be overrated, especially when the edges fall off significantly as is the case with the DA 50.
DA35 f/2.4:
FA35 f/2:
To me it look like DA35 borders are always sharp from f/2.4 and that DA35 f/2.4 is sharper on the center. If we go on on the detail of the review, we also see that FA35 has more CA tha DA35. we can also expect it to flare more due to older coating technology.
DA50 f/1.8:
FA50 f/1.4:
The DA50 f/1.8 is weaker at f/2 but maintain high resolution figures on more closed down apperture. It max at f/5.6 instead of f/4 and perform better at f/5.6 and f8 than the FA35. Interrestingly if we look at the other aspects tested by lenstip:
- the FA50 has much more lateral chromatic aberation (I had it I can confirm)
- the FA50 has a bit more distorsion
- the FA50 has flares issues while the DA50 has not
I had the FA50 and it was great at f/4 and okish at f/2.8 it was not really usable at f/2 and bellow and I had lot of issues with:
- CA
- color shift in OOF areas.
- outline of bokeh highlights.
To me if you want to spend more get a DA*55 but the FA50 doesn't justify at all the 3X price vs the DA50.