Alstar 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.
Extension tube provides extra focuser: back travel often needed for short range terrestrial viewing through a telescope; or for astrophotographic applications
Features two locking thumbscrews to secure any inserted astronomy accessory; with a brass compression insh to prevent the marring of your telescope accessories
Scope Of Application: This useful accessory allows for the perfect connection of your Ni kon camera to a 2 inch eyepiece diameter telescope; FOR Ni kon D1 D40 D50 D70 D70S D80 D200 and all digital NIkon cameras with an F-bayonet
Convenient Installation: Step1: Connect the T ring and 2 inch T adapter through threads; Step2: Connecting the T ring to the camera; Step3: Connect the 2 inch T adapter to the telescope
Alstar 2-Inch 80MM Telescope Eyepiece Extension Tube Adapter - Bundle with - 8 Piece Eyepiece & Filter Accessory Kit
SAR 381
-10%
Alstar 2-Inch 35MM Telescope Eyepiece Extension Tube Adapter - Bundle with - 8 Piece Eyepiece & Filter Accessory Kit
SAR 334
-19%
Alstar 2-Inch 35MM Telescope Eyepiece Extension Tube Adapter - Bundle with - Alignment 1.25" Laser Collimator 2" Adaptor
SAR 225
-14%
Alstar 2-Inch 50MM Telescope Eyepiece Extension Tube Adapter - Bundle with - 2" Telescope Moon Filter Kit
SAR 418
