Olympus Zuiko 75-150mm f/4 Auto-Zoom - Olympus OM Mount

The Olympus Zuiko 75-150mm f/4 is a telephoto zoom lens for the OM system, notable for its constant f/4 maximum aperture and relatively compact dimensions. It features a built-in retractable lens hood and a one-touch zoom/focus ring design. It provides a useful focal range for portraiture and general telephoto work while maintaining the portability characteristic of the Zuiko line. When assessing a used copy, check the smoothness of the combined zoom and focus action, as these can become loose or 'creepy' over time. The internal optics should be inspected for haze, which is common in older zoom designs. SDS verifies that the diaphragm blades are snappy and free from oil, and that the built-in hood remains securely in place when extended.