Originally posted by nater I guarantee the Samyang will smoke the FA31 at f/1.4.
LOL. I would hope so.
Regarding the new test shots seem to confirm what I observed in the previous set from Samyang. The lens is optimized for wide open performance. I bet diffraction is already setting in at f8 which is why f2.8 looks better. If this is a good or bad thing depends on how and what you are shooting and what you look for in a lens. There are times when it's great to have more depth of field, and if that is what you are after there are plenty of lenses available for that purpose. I think this lens is geared more toward wide open performance for subject isolation. The real question is, how does it's wide open performance compare to another lenses stopped down performance. The question is, If I want SHARP, can this deliver.
The other things I noticed, color looks pretty flat. Maybe it's the camera, I don't know, but it definitely does not look like it performs like a Pentax lens in that sense. Contrast also seems a little flat. Again, maybe it's the settings on the D3x. Looking at the images, it looks like it was an overcast day, so that might also contribute to the overall color and contrast. Bokeh looks really good in these new samples. Bokeh fringing seems to be very minimal compared to the last images from Samyang.