Focal length/Aperture: 1200-1700mm f/5.6~f/8.0
Lens Coupling: Ai-S
Lens construction: 18 elements in 13 groups (3 x EDs)
Picture angle: 2¡Æ-1¡Æ30'
Diaphragm: Automatic. Built-in CPU
Aperture scale: f/5.6 ~ f/22 on both standard and aperture-direct-readout scale
Focusing and zooming control: via dual rings. Two removable quick zooming handles provided. Dual focusing/distance indexes provided: Orange (1700mm) and Green (1200mm).
Exposure measurement: Via full aperture method; meter coupling ridge NOT provided. CPU integrated for Matrix Metering with applicable Nikon SLRs.
Distance scale: Graduated in meters and feet from 10m* (35ft.) to infinity (oo)
Focal Length Markings: 1200mm (green), 1700mm (orange).
Depth of Field Scales: Orange for f/22
Attachment size: 52mm rear drop-in
Tripod Mount: Mounting Collar Supplied
Weight: 16,000g
Dimensions: 237mm dia. x 880mm long (overall)
Filters:52mm rear drop in
Front lens cap: Slip on type
Lens hood: Built-in
Tripod mounting/carrying: Via socket in a Fixed tripod mounting collar. Handle built-in on top.
Lens case: CT-1217 metal case supplied.
Usable Teleconverter(s): Not advisable