Zoom / pentax-k / SZ-X
The Tokina SZ-X is a standard zoom lens with a 20–50mm focal-length range and a maximum aperture of f/3.5–4.5.
Designed for the Pentax K mount, it covers shooting from the wide-angle side through the standard range.
It is suitable for use with film SLRs and K-mount-compatible camera bodies.