A rare Soviet film projection lens RO-106-1а F = 120 in good working order. Designed for projection of 35 mm films with high resolution and light transmission. Decently tolerates side and back light. Sharp, contrasting, not yellowing. Significant flange distance, low weight and landing diameter - 52.5 mm allow the lens to be adapted for use with modern digital cameras. Tentatively - "Petsval"..
Product condition: Good condition, there are not large traces of cleaning on the lens.