Used telescope. Minor dust on the lens internally with no effect on the quality of the optics.

About this product

This long focal length 4-inch f10 achromat refractor is the quintessential telescope for astronomy. 

A good choice for observing the Moon, solar system targets and brighter deep sky objects. 

Views are clear and sharp with high contrast. Chromatic aberration is also surprisingly well-corrected. 

A 6x30 optical finderscope, tube-rings and a Sky-Watcher/Vixen type dovetail are also included. 

For photography, it has a convenient direct SLR connection. 

Features & specifications: 

Air-spaced Doublet Optics

Direct SLR Camera Connection

6x30 Finderscope

Dual-Fit 1.25"/2" Focuser

Multi-Coated Objective Lens

28% more Light Gathering than 90mm

Highest Practical Power (Potential): x204

Objective Lens Diameter: 102mm

Telescope Focal Length: 1000mm (f/9.8)