Recensione Sigma 300mm f/2.8 EX DG HSM Usato
The Sigma 300mm f/2.8 EX DG HSM is a super-thebjective super-technical suitable for FF and APS-C formats and compatible with Canon cameras.
The lens is equipped with the ultrasound AF motor (Ring-USM), but is not equipped with the image stabilizer. However, it guarantees a fast and very silent automatic focus; At the same time, the possibility of proceeding with manual focus is not excluded without the need to deactivate the AF.
The Sigma 300mm f/2.8 EX DG HSM makes use of an innovative optical formula that provides for the use of the Sigma Fld glass: an element capable of offering a very low loss of light. The FLD glass in fact give a truly high shift quality, capable of competing with the one that is returned by the high -end lenses of the Japanese house, in which the lenses are made with fluorite glass, a material with a decidedly high price and with elaborate processing .
The optical scheme of the zoom is composed of11 elements out of 9 groups, while the diaphragm is made up of 9 circular slats, suitable for obtaining photos with suggestive blurred effects placed on the background of the subjects focused. The minimum focal range is 2.5 m, with a max zoom of 0.13x. The lenses is also supplied to the lens.
The Sigma 300mm f/2.8 EX DG HSM is ideal for photographers looking for a product with a not excessive, robust, versatile cost capable of returning a good quality and sharpness to the shots. In addition, the possibility of taking advantage of constant openings on each focal length are very appreciable. The only defects are the weight (we are in the order of 2390 g, which make it uncomfortable to use without the single -sided) and the lack of the stabilizer.