Astromania 2" Telescope Eyepiece Extension Tube Adapter
- Optical Length: 35mm
- Fits in: 2" telescope focusers
- Compatible with: 2" eyepieces or accessories
Astromania 2-Inch Telescope Eyepiece Extension Tube Adapter provide extra focuser back travel sometimes needed to achieve focus with certain eyepiece or telescope combinations. More back travel is often needed for short-range terrestrial viewing or with use of a field flattener, coma corrector, or focal reducer lens. Extension tube provides extra focuser "back travel" often needed for short-range terrestrial viewing through a telescope, or for astrophotographic applications.