Sigma AF 18-50mm f/2.8 EX DC D

This camera glass has a good build quality and is made of high-quality materials. It has a good resolution and produces a pleasing bokeh effect. It has both autofocus and manual focus capabilities. The lens elements are coated to reduce glare and improve image quality. The manufacturing time of this photographic lens is not specified. Its aperture is f/2.8 which allows for good low light performance. There are alternatives to this lens available on the market.

Optical design

Bright lens thanks to the high aperture value Has 7 aperture blades, mid-grade lenses usually have this amount of blades. Having rounded blades provides out of focus circle shape closer to a circle. Full frame equivalent focal length is 27.0-75.0 mm.

Physical characteristics

Weights 445 grams so plan ahead, carry only if really necessary. With a lens filter diameter of 67 mm commonly filter size, gives you a variety of filter options. 81 mm long, requires consideration if you want to carry in the camera bag.