Sigma 50mm f/1.4 EX DG HSM review
Large Aperature, standard prime lens, has superior peripheral brightness and corrects the sagittal coma fare
Standard lens with large maximum aperture of F1.4.
Creates sharp images with high contrast and ensures superior peripheral brightness
Incorporates molded glass aspherical lens, perfectly correcting coma aberration and creating superior image quality.
Super multi-layer lens coating reduces [...]
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Pentax DA 55-300mm f/4-5.8 ED review
Extreme telephoto range zoom lens
PENTAX SP coating protects the exposed lens elements
ED elements compensate for chromatic aberration
Developed specifically for PENTAX digital SLRs
Focal length equivalent to 82.5mm to 450mm in the 35mm format
The lens is outfitted with multiple ED glass elements, which are designed to minimize chromatic aberration and makes images [...]
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