Prinzflex — 80-205mm f/4.5 manual push-pull zoom telephoto lens, M42 and SLR mount fits
The Prinzflex 80-205mm f/4.5 is a manual-focus telephoto zoom sold under Dixons' Prinzflex house brand during the 1970s and 1980s. Its range closely mirrors the Prinzflex 80-200mm f/4.5-5.6 but holds a faster, more consistent f/4.5 maximum aperture, marking it as a distinct, higher-specification design.
Weight, filter thread and minimum focus figures were not consistently documented across the mount fits Dixons sold this lens in, so exact numbers are omitted rather than guessed. The lens uses a manual zoom and focus collar, click-stop aperture ring, and an all-metal barrel typical of Japanese-made zooms of the era.
Holding close to f/4.5 across most of its range, rather than dimming sharply toward the long end, gives it an edge in low light over the variable-aperture 80-200mm f/4.5-5.6 in the same range. Optical character is typical of mid-tier zooms of the period.
Secondhand examples are less common than the variable-aperture 80-200mm version, so listings are worth checking closely. Test the zoom action for smoothness, the aperture blades for oil, and the glass for haze or fungus.