Originally posted by kit p. lang for owners of both the 35 f2 and 50 f1.4 and/or f1.7
> which is sharpest at widest ap?
> which focuses/locks on faster?
> which gathers more light?
> which has smoother bokeh?
thanks in advance..........
I have both the FA 35 f/2 and the FA 50 f/1.4.
I cannot comment about sharpest at widest aperture. Both of them do a fairly good job wide open. But for overall sharpness across apertures, my 35 mm seems to do a better job. I have been amazed at how tack sharp it renders some of my pictures.
Focusing speed - no noticeable difference to me.
Light gathering - it's just optics, the f/1.4 can potentially gather much more light.
Bokeh - To me, it seems much easier to get good bokeh on the 50 mm. I think that is a matter of optics as well; with the 35 mm, I have to get much closer to the subject (and the background has to be correspondingly further away) to get bokeh like on the 50 mm. It seems with my 50 mm that as long as the background is a good distance away, I will get good bokeh.
They both have their uses, as Axl stated. I just got the 35 mm f/2 a couple of weeks ago so I have been exclusively using that one to learn the lens. Although the 35 mm does produce nicely sharp images, there have been several times where I've been tempted to put the 50 mm back on.