Sigma 300 800mm f56 ex dg apo hsm lens sigma fit
This lens covers the telephoto range from 300mm to the ultra telephoto range up to 800mm by continuously varying the angle of view from 82 to 31 the lens takes a lot of the footwork out of picture compositionthe addition of an hsm hyper sonic motor makes fast silent af function a reality the lens is also capable of full time manual focus
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