VEGA-5U 4/105 (ВЕГА-5У) is an enlarger lens for large format photographic enlargers. Designed to film format 6x9cm. The lens has a Zeiss Biometar optical design - 5 elements in 3 group. It can be used in priority for macro-sketches, but also in artistic photography and portraits. Produced since 1960s in USSR.
Vendor: AOMZ (Azov Optical-Mechanical Plant)
Lens Mount: M42
The lens is designed for the enlarger and does not have the focusing node
It's can be used on a narrow format only with the macro tubes or macro fold bellows.
Optical design is 5 lenses in 3 groups (Biometar)
Resolution, center/edge lines/mm: 56/24
Field of view: 54°
Working distance: 83mm +/-1
Negative size up to 6x9 cm
Focal range: 105mm
Max.aperture: 4
Min.aperture: 11
Aperture blades: 6