Specifications:
Color: Black/ White(optional)
Material: Metal
Mount: T2 mount
Adapter Ring Mount: T2-FX
Focal Length: 420-800mm lens
Aperture: f/8.3 at 420mm - f/16 at 800mm
Optical Constructions: 4 elements in 2 groups
System: Linear push-pull
Exposure: Automatic exposure is available in Aperture Priority mode only for cameras with TTL metering systems; Other camera must be set in full manual
Focusing: Manual helical(rotary) operation(Not AF compatible)
Minimum Focusing Distance: 1.6 meters(5.25ft) from front lens element
Filter Size: 62mm
Diameter: 69mm
Length: 24-35cm/ 9.45-13.38in(with caps)
Lens Dimension: 24 * 7 * 7cm/ 9.45 * 2.76 * 2.76in
Weight: 659g/ 18.3oz

Packing List:
1 * Super Telephoto Lens
1 * Adapter Ring
1 * Front Cap
1 * Rear Cap
1 * Carrying Pouch