Sigma AF 100-300mm f/4 EX DG HSM APO
Sigma AF 100-300mm f/4 EX DG HSM APO is a auto focus ultra telephoto zoom lens for full frame cameras.
Optical design
Great choice mainly for good light conditions It is a ring-type ultrasonic motor designed to provide quick and silent focusing. Has 9 aperture blades, with this amount of aperture blades you will be satisfied with the result.
Phisical caracteristics
227 mm long, with this size carry only if you use it. 82 mm lens filter diameter, finding lens in this range can be expensieve consider using Cokin system if you really need one. Weights 1440 grams so it is a heavy lens, consider using its own lens bag.
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