Zeiss's Contax standard zoom — the Vario-Sonnar T* 28-85mm f/3.3-4, manual-focus glass for the C/Y mount.
The Zeiss Vario-Sonnar T* 28-85mm f/3.3-4 was a standard zoom for the Contax/Yashica mount, offered from the late 1980s with a useful wide-to-short-tele range. The Vario-Sonnar name marks it as a Zeiss zoom design.
This is a manual-focus C/Y-mount zoom spanning 28-85mm with a variable maximum aperture of f/3.3 to f/4 across the range. It reached from a moderate wide to a short telephoto in one lens. Additional figures are omitted where they cannot be verified.
The 28-85mm range covers travel, landscape, portrait and everyday shooting, extending a little further into the telephoto range than a typical standard zoom. The T* coating helped keep contrast consistent across the zoom.
Used copies are a practical, moderately priced way to get a Contax Zeiss zoom. Check the zoom and focus for smooth travel, look for internal haze, fungus and coating wear, and confirm clean aperture blades. It adapts to mirrorless with a C/Y adapter.