Tamara Wiener |
|
Sigma 400 5.6 Apo Hsm Macro Lens
Hello,I was wondering whether anyone knows something or has personal experience with the Sigma 400 5.6 Apo Hsm Macro lens... I could acquire one for a very reasonable price, but found only one review on it online (that was positive - it said the lens is very sharp). also, is this lens the same as the Sigma 400 5.6 Apo lens, or is there a difference (here, I guess I have to ask what Apo and Hsm means, since I couldn't find an answer to that, either). I own a Canon EOS 10s, and I'd use that lens to photograph lava flows (Hawaii) and some wildlife. If you have a better choice (within a lower price-range, since I am on a tight budget), I'd be very thankful to learn about that, too. Thanks, Tamara
September 30, 2002
|
|
Jon Close |
|
I don't have personal experience with that particular lens, but with respect to Sigma naming conventions: (per http://www.sigmaphoto.com/html/lenses.htm )APO = Apochromatic. These lenses have 1 or more Special Low Dispersion glass (SLD) for minimum color aberration and ultimate telephoto image quality, improving contrast and sharpness. HSM = Hyper-Sonic Motor. This refers to the autofocus motor. It is similar to Canon's USM and is available in some of Sigma's lenses for EOS and Nikon.
October 01, 2002
|
|
Tamara Wiener |
|
thanks, that was very helpful! - good link for future reference...
October 06, 2002
|
|
Log in to respond or ask your own question.
|