If you don't mind lugging around a 12lb lens, this works great. The gimbal head is a must which adds a lot to the weight. If you're into wild life and have a lot of muscle I would recommend the product. They don't have it has an option, but a good sherpa is also recommended.

This is a seriously heavy piece of equipment,weighing about three pounds more than Canon's 800mm, so get your support right.The Manfrotto 475B does a great job with the 393 head for sensible money.

Durable; Quick Focus; Rugged; Sharp Focus; Strong Construction

I have been using the Canon version of this lens & it is sharp wide open!! No stop down required unless you need DOF! Focus is fast & accurate. The first thing I did was do a true test of it's sharpness wide open & it's sharp.

this is the best thing you could buy for your camera. the best picture i have ever gotten with this camera.i would buy it agin .the bust thing out there.

every thing

waight

GREAT JOB BY SIGMA. YOU MAY NEED A HEAVY DUDY TRIPOD FOR VIDEO CAMERAS. I GOT ONE FROM MANFROTTO ABOUT $400. IF COMPARED TO NIKON AND CANON 600MM LENSES, THIS QUALITY IS SAME AT A REASONABLE PRICE. I PURCHASED FROM SIGMA4LESS FOR A GOOD PRICE. BE CAREFUL!

PERFECT AUTOFOCUS GOOD PRICE

IT IS 6KG HEAVY

A great bit of kit. Imagery is sharp and the internal focus is perfect for getting the right focus. the balance of the lens is spot on. you get what you paid for with this.

Oh my, the reach of this lens, combined with the 2x crop factor on Olympus cameras and the relatively high speed make this PERFECT for photographing Tiger Woods in his backswing. With this lens, I'm able to shoot him from 5 or 6 holes away, making my mirror slap almost completely silent.

"This is a great camera overall, the pictures are terrific, i got the pack, the leather case is a nice touch, it has awesome features like fisheye, slow motion video, etc. The video quality is terrific and i definily recommend this camera!"

I have this lens now for about 2 1/2 years. I got it as an absolute bargain because the front lens barrel was dented. I use it mainly for bird and detail wildlife photography. The lens is, when properly focused pin sharp.

Awesome IQ excellent wide open NOT white zoom lens

very heavy

Get used to talking in superlatives with the Sigma 300-800 f/5.6 EX APO HSM AF (Street: $6,200), affectionately called the "Sigmonster" by photo enthusiasts. The Sigmonster is the longest zoom lens for 35mm-based cameras.