Tele Vue Focuser Extension Tube - 3.5" - X3C-0009 Solar Eyepieces Neutral density Moon filter to

Neutral density Moon filter to increase contrast in lunar views by cutting back the birghtness of the image without changing its color

99% Reflectivity

specifically matched to each substrate

Note: Bino-Viewers may not function with some short focal length refractors and Newtonian reflectors without modification

with a field stop of 1

Tele Vue Focuser Extension Tube - 3.5" - X3C-0009 Solar Eyepieces Neutral density Moon filter toAbout the TeleVue 3. 5" Focuser Extension Tube TeleVue Telescope Drawtube Extensions help your telescope reach focus when not using a diagonal as is the case in many imaging applications. They are also useful (with or without diagonal) when you need more out travel for focusing on nearby terrestrial subjects. TeleVue Extention Tubes slip into any telescope''s 2" drawtube and includes brass clamp rings to prevent marring of accessory barrels. TeleVue