night86mare
Deregistered
nikon copy is below 500 or around there.
canon gets usm inside, are you going to compare with sdm version
to my experience, canon copy gives more better build feeling though.
let's put it this way, to compete with bigger names, even same or better quality, Pentax is supposed to offer low price, not the other way.
why don't you find out the problems with the canon version?

with SDM version, comes other problems.
give me non-SDM any day, i don't think our 50mm is very loud and noisy, seeing how most of my cat photos are taken rather close, and cats don't seem to mind..

http://photo.net/canon-eos-digital-camera-forum/00UfUI
http://www.fixya.com/support/t2790258-canon_50mm_f1_4_lens_focusing_failure
these are only 2 of the complaints.. once again, you are just picking out the faults, and drumming on them.
build is just subjective. i don't see how the canon version feels more sturdy, other than the fact that it is larger. it is after all, also plastic on the exterior.
can't comment on the nikon, like i said.
anyways, you have ignored the other points, so still drumming on the 50mm.
drumming on the 50mm is like me drumming on canon's kit lens being poor. that's like saying that the brand is poor because one particular lens is not good to me.