Sigma 17-70mm... OS HSM version worth the extra $$

kenyee · 07-23-2010, 05:38 AM - **1 Like**

I have a good copy of the old one and find it not that sharp wide open...needs to be stopped down a bit...

Reviews I've read also say the new OS version isn't as sharp at the borders...

Edmund · 07-23-2010, 11:22 AM - **1 Like**

Mine seems very sharp. Here is an un-processed JPEG taken when cloudy:

http://farm5.static.flickr.com/4101/4821745952_d3efaba999_b.jpg

Here is one in the sunshine:

http://farm5.static.flickr.com/4142/4821185209_620c2e16fb_b.jpg

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07-23-2010, 05:38 AM - 1 Like	#16
kenyee Veteran Member Join Date: Mar 2007 Location: Boston, PRofMA Photos: Albums Posts: 3,026	I have a good copy of the old one and find it not that sharp wide open...needs to be stopped down a bit... Reviews I've read also say the new OS version isn't as sharp at the borders...

07-23-2010, 11:22 AM - 1 Like	#17
Edmund Forum Member Join Date: May 2010 Location: Kentucky Posts: 68	Mine seems very sharp. Here is an un-processed JPEG taken when cloudy: http://farm5.static.flickr.com/4101/4821745952_d3efaba999_b.jpg Here is one in the sunshine: http://farm5.static.flickr.com/4142/4821185209_620c2e16fb_b.jpg

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