The minimum focusing distance is 100 cm and the maximum macro zoom ratio is 1: Both sharped up very well in photoshop, though the contract might be higher with the pentax. Flare is very well controlled at 50mm and very strong at 150mm.
Sigma 50150mm F2.8 II APO EX DC HSM za Nikon
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The transition is linear over the focal length range. This lens is designed exclusively for crop sensor cameras. Prices & deals subject to change Distortion consists of mild barrel distortion in the center of the frame (not as strong at corners.
2.8 apo dc hsm ex.
Verdict with a compact size and weight alleviating the need for a tripod collar and the third generation of sigma’s hsm focussing motor making the af. In this review we will have a look at how the os lens performs on our current dx test camera, the nikon d7000. The latest upgrade, announced in 2011, added sigma's optical stabilization system (os). To my eyes i think the resolution figures are the same.
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Its constant aperture of 2.8 makes it great to use in any lighting conditions. Read more on the cameras impact on the perceived focal length. Most of the reviews i saw criticized the sigma at close focus distances and a 150mm. If you can get over the weight, this lens will serve you well in a variety of.