This Sigma 150 500mm review will inform you of an ultra-telephoto zoom lens which covers a telephoto range of up to 500mm and permits photographers to bring the subject extremely close and compress the perspective in their photos.

Sigma's original OS (Optical Stabilizer) feature provides the use of shutter speeds approximately 4 stops slower. It is fantastic for sports, wildlife and scenery photography with handheld capturing.

Three SLD (Special Low Dispersion) glass elements provide excellent modification for chromatic aberration. This lens features a rear focus system that reduces fluctuation of aberration caused by focusing.

The super multi-layer lens coating minimizes flare and ghosting. High image quality is guaranteed throughout the entire zoom range.

The Sigma 150 500mm features HSM (Hyper Sonic Motor), that ensures a quiet and high-speed AF and also full-time manual focusing capability.

Incorporating the (optional) 1.4x EX DG APO or 2x EX DG APO Teleconverters develop a 210-700mm F7-9 MF ultra-telephoto zoom lens or a 300-1000mm F10-13 MF ultra-telephoto zoom lens correspondingly.

Although this lens is relatively big and heavy, it is quite easy to fix onto any DSLR body and surprisingly simple to take hand held photos. This lens is perfect for the heavier 5D and 7D bodies but does turn out to be a bit top heavy on the lighter entry level DSLR bodies such as the 500D and 1000D.

For individuals who would prefer to work with this lens on a tripod, the tripod mounting was simple to attach and remove from the quick release plate.

The autofocus was quick and usually accurate in many shooting circumstances and the lens focusing and zoom rings moved with little level of resistance. The fact is, a few people prefer inflexible focus rings and a few prefer smooth.

Individuals who purchase the Sigma 150 500 lens will discover a pleasing compromise.

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