Vintage Olympus OM-System Zuiko 75-150mm f/4 Objektiv + DOI 2× Telekonverter OM Moun
Optics / Coating: Zuiko multi-coated optics. ✅Condition: Focus/zoom action feels smooth; aperture blades appear responsive. Optics look generally clean on visual inspection, but a professional clean may be beneficial before critical work.