| Latest Review Posted | SMC Pentax-D FA 645 25mm F4 AL [IF] SDM AW
http://www.harkleephotography.com/D-FA_645_25mm/Hark_Lee_D-FA_645_25mm_01C.jpg
(1) At First Glance
The build quality of this lens is exceptional, everything feels very solid and well engineered. The entire body and even the lens cap are made
of aluminum (except for rubber/plastic rings, the knob and the dial). It's definitly on the heavier side at 1070g but understandable for its size.
(2) View Angle (82.70° horizontal / 66.85° vertical / 95.46° diagonal)
Corresponding to approximately 19.5mm on a 35mm full frame sensor, the view angle is good enough for most wide angle landscape shots.
Except for a handful of unusual occasions (i.g. Horseshoe Bend, AZ), I personally hardly go any wider than 16mm (on 35mm FF). Since this
lens will convert to a 15.5mm (on a 35mm FF) super-wide angle with a full-frame 645 sensor, I think this will remain as the wide end of my
work range.
http://www.harkleephotography.com/D-FA_645_25mm/Hark_Lee_D-FA_645_25mm_02C.jpg http://www.harkleephotography.com/D-FA_645_25mm/Hark_Lee_D-FA_645_25mm_03C.jpg
(3) Optical Performance
The D-FA 645 25mm shows very impressive resolution across the frame, although it remains to be seen how it performs with a full-frame 645
sensor. With the current cropped sensor of 645d, even the extreme corners look very sharp and contain fine details. I would love to compare
this lens to Rodenstock Digaron-S 23mm, both of them seem to boast exceptional performances, but I am personally curious about how the
s... |
