650-1300超级长焦变焦镜头

High Resolution Professional Lens Fully Automatic and incorporates not only computer optical but also the latest optical multi-coating techniques The process of multi-coating assures virtually flare free photographs even under adverse lighting conditions resulting in crisp, high contrast pictures. Present lenses are designed to retain a full range of exposure, automation and metering capabilities of the camera on which they are mounted. Aperture: Range:F:8.0-16 Min/Max Focus Distance:16ft(5m) to Infinity Zoom/Focus control: Two-Touch Angle of view:3.8 to 2 Degrees Groups/Elements:5/8 Length:18.2"(462.9mm) Filter Size:95mm screw-in T-Mounts Available: Pentax U, Pentax PK, Canon,Nikon,Minolta,Olympus