Originally posted by pid I know, both lenses are wonderful pieces of glass. In which case would you say the FA*85 is better than the FA 77?
Hmm... a lot of PF members have been asking me this question lately both on the forums and through private message. I've only had the FA 85 for a little over 2 weeks now but I've used it exclusively on 6 shoots trying to get a good feel for it. I am not a lens/camera expert with decades of experience the way Digitalis is but based off of my limited time I would say the following about the 85 over the 77:
-Faster and more accurate AF (higher keeper rate)
-Sharper at equivalent apertures
-Slightly more nuanced/subtle rendering and character to the images (a different kind of pixie dust that I find to be slightly more sophisticated which I understand is somewhat subjective)
-Softer and slightly more appealing bokeh (again somewhat subjective)
-Skin tones are rendered in such a way as not to require as much post-processing as the 77 while still maintaining good sharpness/detail
-The lens coatings seem better too as there is less flaring and better contrast when the subject is backlit
The main negatives are that it is much bigger, heavier, more expensive, and considerably harder to find than the 77. Took me months to find a good working copy on eBay and even then I had to thoroughly clean the contacts with alcohol.
I do consider the 77 to be a marvel of lens engineering and it was my favorite lens for quite some time. There really is nothing else available quite like it from any other manufacturer. I will most definitely be keeping my copy for future use on the K-1 but for now I am going through the honeymoon phase with the 85 and I am loving every minute.