Material: Metal
Focal Length: 183mm
Interface: 31.7/1.25in
Objective lens: 50mm
Coating: Fully multi-coated
Item length: 235mm / 9.3in
Item Weight: 580g / 1.28lb
Package Weight: 800g / 1.76lb
Package Size: 280 * 140 * 140mm / 11.0 * 5.5 * 5.5in
Comes with a bracket that fits all kinds of telescope, easy to install.
Nice accessory for astronomy lovers.
Removable dovetail bracket.
For use with astrophotography telescopes.
Compatible with popular CCD guide star.