Sony E 50mm F1.8 OSS is an Auto Focus (AF) Standard Prime lens with APS-C / DX max sensor coverage. When mounted on a APS-C / DX sensor camera, it will give you an FF equivalent focal range of 75mm. Providing a max aperture of f1.8 at 50mm, this lens is very fast.
This lens features on optical image stabilization which helps capturing sharper images at lower shutter speeds. Sony E 50mm F1.8 OSS is not a weather sealed lens, so you have to be extra careful against rain and dust.