Sigma 728-306

Best price Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras. Rear focusing system corrects for fluctuation of aberration due to focusing Its close-up focusing ability makes it handy for shots of small objects such as Sigma 728-306 flowers without having to change lenses Compatible with the Sigma APO Tele converters Lens Hood Tripod Collar ... Learn more »

Sigma 728-306 Review: Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras. I bought this lens after returning a 150-500 for back and front focusing issues on a Nikon D700. Well, the 120-400 suffered from the same problems. My copy had bad back focus at 400mm. Using the D700's AF Tune function I could compensate to get it to focus correctly at 400mm, but that introduced severe front focus issues from 120-250mm. Overall, I could get the 150-300mm range to focus well if I gave up on the 120mm and 400mm ends.As with the 150-500 order, Amazon's shipping department did a totally ... Read more »

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