Specifications:
Material: metal.
Mounting: T2 mounting
Adapter Ring Mounting: T2-AF
Replacement for: Sony Alpha-mount A55 A33 A550 A500 A100 A200 A700 A300 A350 A900 A99 A77 II and Minolta AF-mount A5D A7D Cameras
Focal length: 420-800mm zoom lens
Aperture: f / 8.3 @ 420mm-f / 16 @ 800mm
Optical constructions: 4 elements in 2 groups
Zoom system: linear push-pull
Exposure: automatic exposure is available in aperture priority mode only for cameras with TTL measurement systems; Another camera should be set to full manual
Focus: manual helical operation (rotating) (not support AF)
Minimum focusing distance: 1.6 m (5.25 ft) from the front lens element
Filter Size: 62mm
Diameter: 69 mm
Length: 24-35 cm / 9.45-13.38 inches (with lids).
Lens size: 24 x 7 x 7 cm / 9.45 x 2.76 x 2.76 inches.
Adapter ring size: 6 x 6 x 1.5 cm / 2.36 x 2.36 x 0.59 inches.
Weight: 659 g / 18.3 oz.
Package size: 27 x 8.5 x 8.5 cm / 10.63 x 3.35 x 3.35 inches.
Package weight: 864 g / 30.48 oz.

Packing List:
1 x MF Super Telephoto Zoom Lens
1 x adapter ring.
1 x front cover.
1 x rear cover.
1 x carrying bag.