Sigma 150 600 contemporary manual

. . . Sigma 150-600 Contemporary Manual Focus Action I recently had the chance to look at and compare the Sigma and Tamron 150-600 lenses. Stiff enough to make precise manual focus at 600mm (and with a TC) quite difficult. The Sigma 150-600 Contemporary also touts a new zoom lock Gary Wolstenholme reviews the Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary telephoto zoom lens. Manual focus adjustments can be made at any time by simply turning the thin focus ring on the lens barrel. Manual focusing is a pleasure as the focus ring is well damped, and smooth to Review - Sigma 150-600mm f/5-6.3 OS Contemporary By: Dustin Abbott - WWW | Facebook This is true of the lens I am currently reviewing, the Sigma 150-600mm f/5-6.3 DG OS HSM I wasn't crazy about the manual focus ring, but I also recognize that this is rarely going to be a priority for users of The Sigma 150-600mm f5.0-6.3 Contemporary directly competes with the Tamron 150-600mm f-5-6.3 VC, because both these lenses offer the same focal length and aperture ranges with similar pricing. In addition to this, both the two lenses practically measure & weigh the same, with slight differences here Sigma and Tamron both market 150-600mm zoom lenses. The number on the body refers to the focal length the lens will give you when mounted on a full-frame / 35mm camera; mount one on an APS-C format body and the 1.5x crop factor gives an even greater 'effective' zoom range of 225-900mm. The Sigma APO 150-600mm F5-6.3 DG OS HSM lens is a super-telephoto lens produced by Sigma Corporation. It is actually a range of two slightly different lenses based on a common design: the Sports and Contemporary. Both lenses feature similar specifications, but there are some notable differences.