Sigma 50-100mm F1.8 A is an Auto Focus (AF) Telephoto Zoom
lens with APS-C / DX max sensor coverage and it is designed to be used with Nikon F (DX) mount cameras.
Sigma 50-100mm F1.8 A is compatible with cameras that have Nikon F (DX)
lens mount. Some of the latest released cameras with Nikon F (DX) lens mount are Nikon D3500
, Nikon D7500
and Nikon D5600
Max sensor coverage of Sigma 50-100mm F1.8 A is APS-C / DX
Sigma 50-100mm F1.8 A has a focal range of 50-100mm and 2.0X zoom ratio.
Optical Image Stabilization
Sigma 50-100mm F1.8 A doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Sigma 50-100mm F1.8 A is available in Black color.
Sigma 50-100mm F1.8 A features Rotary (internal)
zoom method where the length of the lens doesn't change while you are zooming in or out. Even though this design has a size disadvantage in general compare to extending designs, it has the benefits of better sealing against dust and moisture, no zoom creep and no weight balance shift while zooming.
Sigma 50-100mm F1.8 A is a fixed aperture lens with a constant max aperture of f1.8 from 50mm all the way to the 100mm .
Sigma 50-100mm F1.8 A's optical formula consists of 21 elements in 15 groups.