Hello Ian,
years ago I tried one of the pre Hyper Sonic Motor lenses in a shop and was not impressed with the speed of focusing. I took a few test shots from the doorway and, when processed,(was using film back then) the image quality was fine. I didn't buy it at the time for financial reasons but have since bought the HSM EX (non DG) version and it is great. I now use it with a 20D and 30D with no flare problems at all.
Hope that helps a little.
Robert.
Posted by Paul Everett on November 6, 2008 at 5:22 AM
I can echo those thoughts, I tried an early version of that lens and was very unimpressed with the focusing speed (can't speak about the glass though). I have a 500 EX and it is truly a great lens, small enough to be portable, quick focusing and tack sharp.
Paul
Posted by Paul Gibbs on November 6, 2008 at 5:42 AM
Save some more pennies and go for an EX, the old motors/screw drive in the APO's was like a snail vs the HSM... Glass is about the same think.
Discussion
3 repliesDoes anyone know if the Sigma 500mm 4.5 APO (ie not EX DG etc)is any good?
Thanks
Louper
years ago I tried one of the pre Hyper Sonic Motor lenses in a shop and was not impressed with the speed of focusing. I took a few test shots from the doorway and, when processed,(was using film back then) the image quality was fine. I didn't buy it at the time for financial reasons but have since bought the HSM EX (non DG) version and it is great. I now use it with a 20D and 30D with no flare problems at all.
Hope that helps a little.
Robert.
Paul