Comments about Sigma Sigma 70-300mm f/4-5.6 DG OS (Optical Stabilizer) Telephoto Zoom Lens for Canon EOS Cameras:

I use this lense more often than my others. Shooting nature and wildlife, outdoors.It makes sharp photos and has good optical stabilization.Works with the sigma 1.4x tel-converter,even though the sigma chart doesn"t show it on the list, but it definetely does.
It does tend to want to hunt for your focus more than Canons does, and you can here the Glass move inside if you tilt it sideways, but it doesn"t harm anything.could be quieter. I use this lense in the woods and outdoors constantly, but it takes it. I"d buy a Canon,70-300 but this was cheaper pricewise.

Comments about Sigma Sigma 70-300mm f/4-5.6 DG OS (Optical Stabilizer) Telephoto Zoom Lens for Canon EOS Cameras:

I'm fairly new to the DLSR world and this lens was perfect for my Canon camera. I first read about this lens in Poplular Photography and after using it this past weekend at the beach, I was very impressed with the image quality even at full zoom. A great lens especially for the price.

Comments about Sigma Sigma 70-300mm f/4-5.6 DG OS (Optical Stabilizer) Telephoto Zoom Lens for Canon EOS Cameras:

Following my need to have a good telephoto lens at reasonable prices this lens fits the bill. One of it's short comings is the speed at which this lens operates and is not acceptable at low light conditions without the addition of an external flash rather than the cameras built-in flash. Using the cameras build-in flash causes lens shadow.

I have taken photos of the printing on power transformers on the utility poles in alleys (hand held) and found them to be completely legible in test shots.

Long distance scenics are fine but as with slower lens f-stops a tripod is a must for even the best of photographers.