Tamron SP AF 70-300mm 4-5.6 Di USD

Fits the Bill I was looking for a good all around lens for my Canon EOS 1Ds, Mark II and this lens fits that bill. Auto-focus is fast and accurate. It's a nice light lens and a good value. I'm grateful that the former owner took such good care of it. One knock I've heard is lens creep. I have not found that at all. It's pretty darned sharp under most circumstances. However, I'm finding that the VC feature isn't as good as on the Tamron 18 - 270 mm zoom I have for my 7D. Maybe I'm just spoiled by the 18 - 270. If I hold the camera with only one hand, (I do that at times to shade the lens or hold something out of the frame) the VC isn't quite as good. Otherwise, with a typical two hand stance, it works well. I'm glad I got this lens and I intend to keep it.

Good but slow. This lens has a great focal range and is a good choice if you want to take only one, all purpose, walk around lens. What surprised me is how slowly the autofocus works. It is tortuga. Snail's pace. So don't plan on any fast action shots. Other than that, this one is a good all purpose choice.

Nice lens for different projects This is a very good lens to carry if you have a smiple project and you don't want to carry many lenses. It is exactly why I got this lens. Now there are some good things and some not very good things about this lens. Pro: 1. Versatile and lightweight 2. Wide range between wide angle and tele (mostly if you're doing full frame or film cameras) not so much in APC and small digital. 3. Good camera manufacturer 4. Cheap compared to Nikon lenses (which I love very very much) Con: 1. Aperture (lens opens up at 5.3 or something) which does not make it a very fast lens especially for low light or sports photography (i do lots of car racing photographry). Of course I compare this to my fast f:2.8 lenses from Nikon that cost almost $2000 each 2. Lens is considered soft which means you won't get the same quality or sharpness you can expect from a Nikon lens 3. In digital bodies like the D80 which has the small APC sensor, you won't get the full image or the true wide angle of 28mm.