Hi
I was wondering about the difference of picture quality of USM lens and a non-USM lens.
I am about to get a 75-300mm lens and was wondering whether it would make a real diff if the lens was a USM one.
btw , my camera is a EOS300 with 28-105 II USM lens.
Other than the EF lens(i.e Non- USM) being noisy , does it take a eternity for this lens to focus ?
Please enlighten me .
Thanx in advance.
Cheers
I was wondering about the difference of picture quality of USM lens and a non-USM lens.
I am about to get a 75-300mm lens and was wondering whether it would make a real diff if the lens was a USM one.
btw , my camera is a EOS300 with 28-105 II USM lens.
Other than the EF lens(i.e Non- USM) being noisy , does it take a eternity for this lens to focus ?
Please enlighten me .
Thanx in advance.
Cheers