[gb44 (Glenn)]

For sale is an 18 inch f4.7 telescope on dobsonian mount, complete.
Lightweight aluminium tube splits in two for quick packing (each of which can split into three plus the secondary turret). Mount splits into 4 pieces to lie flat. Secondary section rotates. Made for easy portability.

Includes-
18inch f4.7 newtonian complete,
Dobsonian mount,
Helical focusser for 1.25" & 2" eyepieces,
9x50 Orion right angle finder scope,
Rigel Quickfinder,
Mirror box,
Ladder.


Mirrors are aluminised and the primary has a quartz overcoating. Coatings are in very good condition. The optics are free from astigmatism and aberrations and the mirror certificate from the mirror maker claims 1/4 wave accuracy. Primary mirror is soda lime glass 29mm thick giving easy cooling and lighter weight.
In practice with excellent seeing the cooled scope gives excellent views. The homunculus of Eta carina can be clearly seen. Globulars are spectacular. 20-40mm eyepieces of 1.25" and 2" diameter are most delightful not requiring coma correction.
Cooling fan in mirror cell.
Fan over primary mirror face.
Wind defeating altitude tensioner.

All offers welcomed.