Originally posted by giorgio hi there
maybe someone from the club could help me deciding on my new lens.
i'm between a pentax M 100mm 2.8 and the pentax K 135 2.5. which one would you pick?
what are the differences besides focal lenght and max aperture?
Hopefully you ahve consulted the
Lens Review Database here. Many opinions of both lenses posted there by Forum members.
The K135/2.5 ranks as one of the several "best" MF primes produced by Pentax. It is a massively solid lens, incredibly well constucted, sharp to the point of cutting and, on film, unobtrusive but close enough to capture facial expression and details. A bit "long" on a crop sensor and of course subject to the same metering issues as any MF prime. Perhaps a TINY risk of PF in heavy-contrast shooting. Heavy. For what you get the current price is very good.
M100/2.8 is small, mobile and of course has that M lnes construction and feel. Perhaps not quite as sharp as the K135 but still an excellent performer, even wide open. Especially on an M-series film body this lens is well balanced and fun to use. Colors have a slighly cool touch that is pleasing. At around $125 mint and $100 cosmetic signs of use, this is perhaps the best value Pentax MF lens in the 100mm - 135mm class
I have owned the K135/2.5 but sold it at a compelling price. I still have the 100/2.8 (in fact I ahve two right now) and will keep one as a permanent collection lens.
Advice on which to buy is, get both and try them - sell the one you like less. There is plenty of traffic here in both lenses so you have little risk of being "stuck" with a loss if you pay the righht price on the buy side.