The Tokina SZ-X 28-200mm f/3.5-5.3 was a wide-range manual focus superzoom from Tokina's consumer SZ-X series of the 1980s, covering wide-angle through telephoto in one lens for 35mm SLR users wanting a single travel-friendly optic.
It uses a one-touch push-pull zoom-and-focus barrel with a manual click-stop aperture ring, and period multi-coating. Maximum aperture falls from f/3.5 at 28mm to f/5.3 at 200mm, a wide swing typical of ambitious superzoom designs from this era of consumer optics.
Given its broad range, optical compromises are pronounced at both extremes, with softer corners at 28mm and reduced contrast and sharpness at 200mm; the mid-range is the most usable. It prioritises focal-length flexibility over consistent optical performance.
Secondhand examples turn up in most manual mounts at low prices, often as a well-worn all-in-one travel lens. Buyers should check the extensive zoom travel for smoothness and looseness, and inspect thoroughly for internal haze given the lens's long optical path.