This Sigma 150 500mm review is going to let you know about an ultra-telephoto zoom lens which covers a telephoto range of as much as 500mm and permits photography enthusiasts to bring the subject extremely close and compress the perspective in their shots.

Sigma's original OS (Optical Stabilizer) functionality offers the use of shutter speeds approximately 4 stops slower. It is great for sporting activities, wildlife and scenery photography with handheld capturing.

Three SLD (Special Low Dispersion) glass elements provide excellent correction for chromatic aberration. This lens has a rear focus system that lowers fluctuation of aberration brought on 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 includes HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF and also full-time manual focusing ability.

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 respectively.

Even though this lens is relatively big and heavy, it isn't very difficult to fix onto any DSLR body and surprisingly simple to take hand held shots. This lens is ideal for the heavier 5D and 7D bodies but does become a bit top heavy on the lighter entry level DSLR bodies such as the 500D and 1000D.

People who would choose 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 fast and generally accurate in nearly all shooting conditions and the lens focusing and zoom rings moved with little level of resistance. The fact is, a few people prefer stiff focus rings and some prefer smooth.

Those who buy the Sigma 150 500 lens will discover a pleasing compromise.

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