Lens Type: Fixed focal Length Mirror Lens
Focal Length: 500mm (equivalent to 750mm on APS-C Sensors)
Field of View: 5 degrees
Focus type: Manual Focus
Lens Construction: 7 elements in 6 groups
Filter Diameter: 34mm (Rear)
Weight: 705g
T mount sold indivdual ( canon , nikon , sony , olympus , pentax
