I too, like the originator of this post am new to "quality" digital photography. I have been reviewing this site and notice during the reading of the posts that your comments seem to be based upon knowledge gained from experience and respect your opinions.
My photographic experience is limited to 35mm, Minolta SRT 101 in VietNam 69-70, followed up shortly thereafter with Nikon EM. I use the Nikon 50mm lense with f-stop range of 1.8 to 22 and then several generic 28mm and 135mm lenses with a 2 power converter.
I recently acquired my Rebel EOS 300 Digital ( or whatever the nomenclature is) after giving consideration to the EOS 1D, then the 10D. Although cost was a consideration, for the near perfection quality I desire, I was willing to pay the near $8000 for the 1D. I am very pleased with the Rebel and hence can afford to pass my savings on to the purchase of lenses.
With the intial purchase of the Rebel, the shop sold me the Sigma Autofocus Telephoto Zoom with Macro that you refer to in this post. Several days after my purchase I returned the 2 Sigma lenses and indicated to the shop keeper that I desired refund, (which he did provide); that the movement of the zoom did not seem to be as fluid and free moving as the Canon 18-55 zoom that came with the camera, and that I wanted to get the Canon 75-300 Zoom with the Image Stabilization. Have found one on the net new for $375US, shipping and handling included. I read the review posted at the link and see how much better the Sigma is rated than the Canon. I guess my question is this: Is the Sigma that much better of a lense than the Canon? Perhaps could it be possible that the Sigma that I had could have had a flaw that made the movement of the zoom seem "jerkey" and maybe another Sigma might have a more smooth movement like the Canon. I would appreciate and respect your comment. Thanks, Tom
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