Sigma Zoom AF 28-70mm f/3.5-4.5

This camera glass has a range of focal lengths from 28mm to 70mm, making it versatile for different types of photography. It has autofocus capabilities, but can also be used in manual focus mode if desired. The lens is made up of multiple glass elements to improve image quality and reduce distortion. It also has lens coating to minimize glare and improve contrast. The manufacturing time of this photographic lens is unknown. The aperture of the lens can be adjusted from f/3.5 to f/4.5, allowing for more or less light to enter the camera. The build quality of this glass is sturdy and durable, making it a reliable option for photographers. The resolution of the lens is decent, providing clear and sharp images. Alternatives to this lens include other prime zoom lenses with different focal lengths and apertures. The bokeh, or the quality of the out-of-focus areas in a photo, is average for this lens.

Optical design

Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Average brightness in this league

Physical characteristics

Weights 465 grams so plan ahead, carry only if really necessary. With a lens filter diameter of 52 mm commonly filter size, gives you a variety of filter options.