Sigma 120-300mm f/2.8 AF APO EX DG OS HSM Lens for Nikon Digital SLRs

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Product Description

This latest version of the Sigma APO 120-300mm F2.8 EX DG OS HSM is pleased to announce the inclusion of Optical Stablization(OS) which is critical to equipment sporting this focal range allowing for hand-held tele-photography and the use of shutter speeds approximately 4 stops slower than would otherwise be possible. Sigma's new splash-proof feature is also included preventing dust and precipitation from getting inside the lens. One SLD and two FLD glass elements provides maximum correction of chromatic aberrations. The super multi-layer coating reduces flare and ghosting, and the lens design incorporates an inner focusing and inner zooming system to ensure sharp images throughout the entire zoom range. Improved optical performance provides excellent correction of sagittal coma flare and ensures ultra-high resolution, comparable to a fixed focal length lens. The HSM (Hyper Sonic Motor ensures quiet and high speed AF, while allowing full-time manual focus override. A truly unique product which is a rarity in the photo industry, this lens is the only lens of its kind on the market; a professional zoom lens that also features a fast aperture. Most professionals own the standard 300mm 2.8, but they also have to carry a shorter zoom lens for those times when the subjects move closer. That means fumbling around switching lenses or carrying a second camera body. The amazing Sigma zoom lens let you instantly determine the picture composition you want without having to change your vantage point. Imagine photographing courtside at a college basketball game and having the versatility to zoom in on a player's face or hand and then instantly zoom back to capture the entire player making his shot. You can do it with the Sigma APO 120-300mm F2.8 EX DG OS HSM. The aperture remains constant at F2.8 throughout the entire zoom range. The addition of the optional APO tele converter produces an ultra telephoto zoom lens with AF Specifications:Lens Construction: 2...

Sigma 120-300mm f/2.8 AF APO EX DG OS HSM Lens for Nikon Digital SLRs Review

I picked mine up from Adorama new for $2500 after the sport version came out, they are basically giving it away.

The Sport and EX versions are almost identical. The only difference is that the Sport can dock to a USB to customize some of the AF settings and slightly better weather sealing if you plan on using it in the rain.

Is it heavy, yes, but it is a 300mm f2.8... they don't come light.
Do you need a tripod/monopod? Depends how strong are you, my GF can’t use this very long handheld, but I can walk around with it for a couple hours. Aside from that, if you are shooting 300mm+, especially in low light… having something to help you hold still isn’t a bad idea. That isn’t the fault of the lens, it is fault in your shaky arms.
For the other review saying it is too heavy, then go to a 300mm f4. Or saying they are going to buy a 200-400mm f4? That is HEAVIER than this with the 1.4TC and $3000+ more.
If you are having issues with sharpness, you are shaking, or you have a bad lens and you should send it to Sigma.

Anyhow, after I got it home I tossed it on a D7000 and was wowed, the swapped it onto the D600 and the focus was even faster. Now, if you compare it to a 300mm f2.8 Nikkor prime, that is 2x as expensive, it may focus slightly slower... but the image quality is close enough that for someone actually taking pictures and not just shooting a chart you will never notice the difference. I can count pixels on the D600 wide open, it is that sharp. If I get a blurry shot… I moved.

The ability to zoom out and in is GREAT. I went from a 300 prime and TC to this and being able to zoom in and out as animals move has saved my shot more than once.

Add together the fact that it costs 1/2 of a 300mm from Nikon or Cannon, the IQ is close enough that shot of shooting a chart with a D800E, you can't tell the difference, AF is lightning quick, and you can ZOOM, this lens is hard to beat.

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