lsr792000 said:
Hello experts out there, any feedback on the above lens? I am thinking of getting a lens in the range of 70mm to 300mm. Please advise.
HI, first and importanly - me no expert.
there are 3 versipns of this ef lens
1- no IS, no USM ( cheapest )
2- no IS , got USM
3- got IS and USM
The differences is just the 'mechanical' side. Optically, they are the same....ok lah, IS one got floating elements inside...but i mean optical quality.
This is classified as 'cheapo' lens by some ppl. It is true if you compare with others EF lenses but the optical quality is very good if you can step down to f/11 or 16. However, the max aperture of 5.6 is limiting becasue it will be the limit where most AF sensors can work. However, if you use dslr, you at least can choose higer ISO anytime you like.
This is a great outdoor portrait lens....if you use tripod. The view using 200+mm is simply great to make your subject has that mysterious feel...this makes big aperutre 'useless' becasue the focal lenght itself already limit your dof by a lot.
Verdict: good to have the IS version . Makes the f/5.6 less of a problem.
It's the cheapest IS lens you can get.
Caution: this is not a ring USM design, so no FTM for it. Must always switch the AF/MF switch if you want to tweak focus after AF lock.
DT