williamhung
New Member
Hey , i am considering buying this lens , can it work as well with a 450D, i am a new user as well thanks. i been reading and some people says with 450d the pictures are very blur and not sharp but your pictures proofs otherwise.(maybe its 450d) and they also complained that the lens is slow in auto focusing . may i know what camera you are using? pls advice me on this i really need a zzoom / macro lens. and what is the difference between the apo and os lens