Product Features: 

- Schneider Kreuznach Componon-S 150mm f/5.6 lens made in germany

- Aperture range f/5.6-45

- Lens construction E-G - 6-4

- Optimum magnification range - 2-20

- Negative size coverage - 90x120

- Illuminates aperture

- Mounting thread - M50x0.75

- Filter screw thread - M52x0.75

- Flange focus distance at infinity - 144.3

- BL-0a mount

- 90 day warranty