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Latest Review Posted SMC Pentax-F 135mm F2.8 [IF]
After a long quest for this lens that I intend to use for concerts and stuff, I finally managed to locate one on When it arrived, it was in an ugly state, to the point I was concerned if it would be usable. My concerns quickly vanished when the first results appeared on the computer: it is a stellar performer. This copy shows a minor decentering to the left side, but it is minor and only visible @ f/2.8 (and only then when you pixelpeep.)

- Handling is great: compact and massive, but not too heavy, this lens balances well with both my K-1 and K-3. The integrated lens hood, while on the short side (like all integrated lens hoods) seems to be very effective in blocking stray lights. Although I read the other reviews about AF, it was a very nice surprise altogether: Autofocus is super precise and very fast. The screw-drive is audible but not annoyingly so. A very nice touch is the minimum focusing distance of 70cm, which enables semi macros up to 1:4 that is very usable and doesn't exhibit any sharpness degrading. Well done! The only minor side is the very small focussing ring (representative to the area in which it was launched.)
- This lens is bitingly sharp at the centre from f/2.8 all the way up to f/16 (have not yet been able to use it beyond that.) The edges are a bit softer but already very good at f/2.8 (and really excellent from f/5.6 on), the extreme corners are acceptably sharp wide open and become very good @ f/5.6. Contrast is always very good. All in a...

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