The Sigma 500mm F4.5 EX DG APO HSM
A large aperture super telephoto lens s a great tool for nature and sports photographers who need the winning combination of serious reach and wide aperture to freeze subjects with a very quick shutter speed that the Sigma 500mm F4.5 EX DG APO HSM offers.
And it is also amazingly compact for this class of lens at just over fourteen inches long and under seven pounds.
The incredibly fast F4.5 aperture lets you get the sharpest image possible even when your subject is moving at top speeds. This makes this lens a great option when shooting sports action or tracking moving wildlifein the outdoors.