Sigma Telephoto 300mm f/2.8 EX DG HSM Autofocus Lens for Canon EOS

The Sigma Telephoto 300mm f/2.8 EX DG HSM Autofocus Lens for Canon EOS is an ultra compact Apochromatic telephoto lens that features a fast f/2.8 maximum aperture. The Sigma Telephoto 300mm f/2.8 EX DG HSM Autofocus Lens for Canon EOS incorporates two Extraordinary Low Dispersion glass elements which help reduce chromatic aberration to a minimum. The Sigma Telephoto 300mm f/2.8 EX DG HSM Autofocus Lens for Canon EOS also features internal focusing, which enables responsive and fast autofocus speed. Additionally, when purchasing this lens, you will also receive a detachable tripod socket and a rotatable drop in filter holder. 

The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration, which is a serious problem for digital SLR cameras.

With the use of the optional Sigma APO teleconverters, this lens can be used as a 420mm f/4 AF ultra-telephoto lens with a 1.4X EX teleconverter, or a 600mm f/5.6 AF ultra-telephoto lens with a 2X teleconverter.

Key Features

• Hyper Sonic Motor for quiet & smooth AF with fulltime manual focus override
• Two ELD glass elements reduce chromatic aberration to a minimum and also ensure sharp, quality images of high contrast
• Internal focusing with a non-rotating front
• A drop-in 46mm filter holder in the rear part of the lens barrel can be rotated to facilitate the use of filters, including a polarizing filter
• Removable tripod collar
• Built in front protective filter
• The rounded 9-blade diaphragm opening makes out-of-focus elements appear more natural