Vivitar MC Macro Focusing Zoom 28-70mm 1:3.4-4.8 - PK lens
This is a manual focus standard kit type zoom lens.
Focal length: 28-70mm
Optical design: 9 elements in 8 groups
Mount: Pentax K (PK) but can also be found with other mounts.
Aperture: f/3.4-4.8 to f/22, 6 bladed aperure
Covers: Standard 35mm film size (24×36 mm negative)
Closest Focus: About 0.35m (1.1ft)
Filter Size: 52mm (rotating)