Nikon zoom camera for Telephoto lens Function: 1. The lens itself is a T2 mount that can be mounted on a telescope to observe the moon, etc. Thanks to the standard adapter ring, it can be installed on the Nikon camera to photograph distant objects. 2. The hull is made of high-quality aluminum with a delicate texture. 3. Manual focus, multi-layer MC coating made of optical glass. 4. It has an extra long zoom of 420-800mm/16,5-31,5inch, and with a 2X teleconverter, the focal range is 840-1600mm/33,1-63inch. 5. Telephoto lenses are suitable for photographing distant scenery, wildlife, concerts, bird watching, etc. 6. An extremely efficient 2X teleconverter that can double the focal length or magnification. Specification: Weight: about 1058g / 37,3 oz Options: black, white Lens parameters: 420-800 mm Object type: telephoto lens Material: plastic aluminum alloy optical glass Focus mode: full manual focus adjustment Focal: 420-800 mm / 16,5-31,5 inch Cover: F / 8,3-16 Front filter diameter: 67mm / 2,6 inch Anti-shock function: none Applies to models: for camera with Nikon F mount (install standard adapter ring to use) teleconverter parameters: 2X Material: plastic aluminum alloy optical glass Coating: MC coating Interface: T2 assembly Magnification: 2X List of packages: 1 x Lens 1 x Front Lens Hood (Installed) 1 x Rear Lens Hood (Installed) 2 x Storage Bag 1 x Adapter Ring 1 x Key 1 x 2X teleconverter (lens cover installed)