It fairly obvious the 85mm is going to have more developed bokeh due to it's larger aperture and longer focal length.
The above taken into consideration I think it's hard to be completely critical.
I would say the 77mm seems to be allowing more light to pass through at matching apertures though.
I'd like the 85mm for it's max aperture, but am more than happy with the 77mm
Thanks for the work Frank!
Actually I used FA77 alot more often than the FA*85, mostly due to its smaller size, and excellent IQ
While it is obvious the bokeh from the 85 edges out the 77, I think I prefer the 77 rendering of the subject, though it's really too close to say. Given that I own the FA77 I wouldn't shell out for the 85 based on this evidence. Photoshop has rather nice blurring algorithms for those cases where it really matters.
I'll tell you one thing, your fathers not looking too chuffed in any of these, how long did he have to stand for you to do the tests.
I must admit I have the A series 85mm F1.4 (with the pukka hood) and I luv it to bits, so I guess I'm to biased to comment about the best lens.
I think bias is the point here. Both lenses seem to perform extremely well, but in different ways, so the best lens is the one you like the most. There is no way to give an absolute answer to the question of which one is the better lens.
I've always wanted the A* 85 and eventually had to "settle" for the 77 Ltd. After seeing these comparisons I find I actually like the rendition of the 77 Ltd better, so I'm happy I didn't spend a whole lot of money on the A* 85 if the 77 Ltd gives me what I want. For others it will be the other way around and they'll want the A* 85.
It really is a matter of taste and a testament to Pentax's design prowess that they're capable of creating two great lenses at the very top of the 80mm food chain and yet give each of them a distinct personality.
The 77 shots are lighter than the 85. But they look almost alike in IQ.
I agree w/ you on the IQ part To me they are all pretty good.
Originally Posted by bimjo
Subjectively I prefer the 85 for the bokeh, but I'd be more than happy to own either one of them.
If I didn't check the focal length, it'd be really hard for me to tell which photo is taken by which lens, especially when looking at larger sizes
Originally Posted by rparmar
Thanks for this comparison! Thank your dad too!
While it is obvious the bokeh from the 85 edges out the 77, I think I prefer the 77 rendering of the subject, though it's really too close to say. Given that I own the FA77 I wouldn't shell out for the 85 based on this evidence. Photoshop has rather nice blurring algorithms for those cases where it really matters.
Thanks Robin I'm sure most FA77 owners are pretty happy w/ it. It's such a wonderful lens after all.
I think bias is the point here. Both lenses seem to perform extremely well, but in different ways, so the best lens is the one you like the most. There is no way to give an absolute answer to the question of which one is the better lens.
I've always wanted the A* 85 and eventually had to "settle" for the 77 Ltd. After seeing these comparisons I find I actually like the rendition of the 77 Ltd better, so I'm happy I didn't spend a whole lot of money on the A* 85 if the 77 Ltd gives me what I want. For others it will be the other way around and they'll want the A* 85.
It really is a matter of taste and a testament to Pentax's design prowess that they're capable of creating two great lenses at the very top of the 80mm food chain and yet give each of them a distinct personality.
Actually A*85 is quite different from FA*85. At wider aperture I think A*85 has its edge. Bokeh wise, the FA*85 is optimized for portraits, probably it's more suitable for this kind of photos. Optically A*85 is more close to FA77 than it is to FA*85.
If you already have FA77 and are happy w/ it, don't think you'd be any happier w/ the A*85
Hmm, hard to tell. Maybe I should've moved abit closer when testing the FA77 so we'd see similar FOV ...
But that's what made it so easy to tell which lens took the shot!
When I first saw the series, I did note that the pictures seemed framed for the 85, then taken with the 77, so as photos, the 85's were more successful.
But that was me in my head defending the 77
But amazing set of comparison shots overall! Thanks for this, Frank.