Tamron SP AF 17-50mm f/2.8 Di II XR LD Aspherical (IF) A16

The Tamron SP AF 17-50mm f/2.8 Di II XR LD Aspherical (IF) A16 is a camera glass that has a zoom range of 17-50mm with a constant aperture of f/2.8. This lens is designed for APS-C cameras and provides a full-frame equivalent focal length of 25.5-75.0mm. It has a seven-blade aperture that produces a circular bokeh effect. The auto focus is smooth, and it also has a manual focus option. The lens is made up of high-quality glass elements and has a special coating that reduces ghosting and flare. The build quality is good, and it is a durable lens that can withstand regular use. The resolution is sharp, and the image quality is excellent. The lens has a filter diameter of 67mm, and it weighs 434 grams. The lens is 81mm long, which makes it a bit bulky to carry around. This lens is a great alternative for those who want a high-quality lens that is affordable. The manufacturing time is quick, and the lens is readily available.

Optical design

Full frame equivalent focal length is 25.5-75.0 mm. 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. Bright lens thanks to the high aperture value

Physical characteristics

With a lens filter diameter of 67 mm commonly filter size, presents numerous filter possibilities. 81 mm long, requires consideration if you want to carry in the camera bag. Weights 434 grams so plan ahead, carry only if really necessary.