The Rodenstock Omegaron 1:3.5 f=50mm is a classic 4-element, 3-group darkroom enlarging lens, manufactured in Germany by Rodenstock and frequently bundled with Omega enlargers. Designed to cover 35mm film formats, it offers standard darkroom functionality with a maximum aperture of f/3.5. Key SpecificationsFocal Length: 50mmMaximum Aperture: f/3.5 (Aperture range: f/3.5 to f/16) Optical Design: 4 elements in 3 groups (often compared to a Tessar formula) Cash & Carry Only Mount Type: 39mm (M39 / LTM) Thread Features: Illuminated aperture scale and positive click-stops
