Latest Review Posted | SMC Pentax 135mm F3.5 Honestly, In my opinion, there is no real good reason to get the F2.5 of the 135mm lens when this F3.5 lens does everything great in the digital era. Background separation is just as good with this lens as with the F2.5, but significantly more affordable and physically smaller. It is also sharper wide open when compared to the F2.5 at F2.5. No need to worry about viewfinder brightness anymore like in the film days. I do have to say that this lens is still slightly expensive, probably because of its slight rarity when compared to the Pentax-M version. |