Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- User Rating: 
Summary for Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- Sigma 120-400mm f/4.5-5.6 AF APO GG OS HSM Telephoto lens
Notes on Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- My preference of course would have been for a Canon equivalent; but for the $400 or more price differential , it was a no brainer for me. I was pleasantly surprised with the quality of the lens construction itself and of the quality of the images obtained. I am still checking out the lens at various conditions, close and far, but so far I am satisfied. Keep in mind that this lens is big and heavy, and is not for everyone to tote around. For me it's worth it.
Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- User Rating: Summary for Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- Just an awesome lens
Notes on Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- Great for the money.
Its heavy to hold so use a monopod or tripod for extended use.
Beats the Canon equilivent for the price. A must buy for as often as you will use this lens.
Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- User Rating: 
Summary for Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- Great value for the price
Notes on Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- I've only found a few reviews of this lens online and virtually all of them criticize it for not being sharp enough when compared to top-of-the line lenses. Okay, that's true. It isn't as sharp as a lens twice or three times as expensive.
I've found it to be plenty sharp enough to take excellent pictures and at a price that I could afford to actually have it instead of just pining away after a more expensive lens.
The image stabilization is very effective, focus is quick and reliable, and the lens itself is well made and even nice looking. Yes, it's a bit heavy, but not too heavy to shoot handheld, thanks to the image stabilization. The included tripod mount ring makes it an ideal combo for hiking when used with a monopod.
I've fallen in love with using this lens for candid portraits: you can shoot from far enough away that your subject doesn't notice and "ham it up" or hide. It also is very nice for light macro work, since it focuses at about 60", even at the maximum zoom. The full-time manual focus is also a feature you'll never want to do without once you've tried it, and it's a feature usually only found on much more expensive lenses.
The addition of a case, strap, and lens hood just increases the bang-for-the-buck.
My only complaint is that the zoom ring is very stiff when the lens is new, making it hard to zoom to max without taking the lens away from your eye. However, this is getting better with use.
Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- User Rating: Summary for Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- Sigma 120 to 400 lens
Notes on Sigma 120-400mm f/4.5-5.6 AF APO DG OS ...- I was looking for a long lens with stablization, this suited my needs. I ordered it with Amazon.com. I was hoping it would come prior to my trip which I was taking on my motorcycle. It came, great service from the dealer. I took the lens on the trip, used it extensively and love the pictures taken with it. Yes, it is a heavy lens, but I handheld it for the shots I took as had no room for tripod. Shots are sharp. As were taken mainly in the bright sun, had no issues with shake. Used the OS sometimes mainly to try it out more than needed.
Overall love the lens and am happy with the purchase and would recommend the lens to anyone looking for a long lens.
