Sigma 28-105mm f/2.8-4 Aspherical IF

The Sigma 28-105mm f/2.8-4 Aspherical IF photo lens is a versatile and high-quality option for photographers. It has a range of focal lengths from wide-angle to medium telephoto. The lens has both autofocus and manual focus capabilities, giving photographers more control over their shots. The lens has multiple lens elements and is coated to reduce flare and ghosting, resulting in clear and sharp images. The lens has a high aperture value, which allows for more light to enter the camera, resulting in brighter images. The lens has a sturdy build quality and is well-suited for professional use. Overall, the Sigma 28-105mm f/2.8-4 Aspherical IF lens is a great option for photographers looking for a high-quality and versatile lens. Some alternatives to this lens include other prime zoom lenses from Sigma, as well as lenses from other manufacturers.

Optical design

Bright lens thanks to the high aperture value Has 8 aperture blades, with this amount of aperture blades you will be satisfied with the result.

Physical characteristics

With a lens filter diameter of 72 mm you are one step from the next standard filter size, buy step-up ring and bigger filter but you can chose from plenty options. Weights 405 grams so plan ahead, carry only if really necessary. 79 mm long, requires consideration if you want to carry in the camera bag.