Hanimex's M42 telephoto zoom — the 80-200mm f/3.5 with constant aperture.
The Hanimex 80-200mm f/3.5 Auto Screw in M42 mount is a vintage telephoto zoom with a constant f/3.5 aperture. The constant aperture was a practical feature — faster and more consistent than variable alternatives. The M42 screw mount adapts to any camera. Hanimex produced affordable alternatives — the constant f/3.5 is the distinguishing feature.
The constant f/3.5 provides a brighter viewfinder and more consistent exposure than variable-aperture competitors. Sharpness is basic Hanimex quality — acceptable when stopped down. The 80-200mm range covers the standard telephoto spectrum. The M42 mount provides universal camera compatibility. Build quality is basic but the constant aperture adds value.
M42 screw mount — adapts to any camera. Filter thread varies. Weight varies. Build quality is basic Hanimex. Manual focus. The constant f/3.5 is the distinguishing feature — faster than typical f/4-5.6 alternatives from the same era. The M42 universality enables use on any mirrorless camera.
Very cheap. The constant f/3.5 is the only distinguishing feature. Check smooth zoom and focus. Adequate for casual telephoto work adapted to mirrorless. Better M42 telephoto options exist from Pentax and others. The constant aperture adds modest practical value at the budget level.