Santel MK7 7” F/ 10 Mak. Cass.

Specifications
Clear Aperture ----180mm ( 7.1” )
Focal Length ----1800mm ( 70” )
Tube Diameter ----210mm ( 8.3” )
Tube Length ----560mm (22.0” )
Tube Weight ----7kg ( 15.4lb )
Back Focus ----130mm ( 5.1” )
Diameter Of Central Obstruction ----60mm ( 2.36” ) 33%
Meniscus ----K8 Glass Less Than 1% Reflection, Broadband Multicoated
Mirror ----LK5 Glass Aluminized SiO2 Protected
Tube ----Aluminum White Textured
Focusing ----Moving Mirror Zero Image Shift
Finder ----10 X 50mm On Quick Release Bracket
Camera Holder ----No
Optical Quality ----1/6th To 1/7th Wave PTV.
Cooling ----No

Comes In A Padded Carrying Case. -----------------------------------------------------Price $US 2097