----- Original Message ----- From: "Tom C" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, May 10, 2005 12:03 PM Subject: 500mm Zooms
> Does anyone have any experience or comments on the following lenses? > > Sigma Zoom Telephoto 170-500mm f/5-6.3 APO Aspherical for Pentax AF > > http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=121742&is=REG > > Sigma Zoom Normal-Telephoto 50-500mm f/4.0-6.3 EX APO RF Autofocus Lens for > Pentax AF > > http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=192448&is=USA > > Thanks. > > Tom C. >From what I've heard, the 50-500 gives better image quality than the 170-500. reviews of both here: http://www.photographyreview.com/35mm%20Zoom/Sigma/PRD_83590_3128crx.aspx#reviews and http://www.photographyreview.com/35mm%20Zoom/Sigma/PRD_84817_3128crx.aspx#reviews Personally, I don't think an f6.3 lens could ever work for me. Christian
