Alstar 2-Inch Telescope Eyepiece Extension Tube Adapter -

Alstar 2-Inch Telescope Eyepiece Extension Tube Adapter - Optical Length 35mm - with Standand 2-Inch Filter Threads
- Features two locking thumbscrews to secure any inserted astronomy accessory; with a brass compression insh to prevent the marring of your telescope accessories
- Machined of high quality aluminum and anodized black; resistant for long time use
- Extension tube provides extra focuser: back travel often needed for short range terrestrial viewing through a telescope; or for astrophotographic applications
- Fits in 2 inch telescope focusers and accepts 2 inch eyepieces or accessories; Threaded for use with standand 2 inch astrophotography filters
- With this simple and useful device; you can extend the focal length of your telescope 35mm or a little more; The required spacing can be achieved by combining several extenders of differing lengths as you like
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. Fits in 2" telescope focusers, and accepts 2" eyepieces or accessories. Features two locking thumbscrews to secure any inserted astronomy accessory, with a brass compression insh to prevent the marring of your telescope accessories. Machined of high quality aluminum and anodized black, durable for long time use.
Country USA
Brand Alstar
Manufacturer Alstar
Binding Electronics
ItemPartNumber SKU_AM_ETA235A
Model SKU_AM_ETA235A
Warranty 2 Year Manufacturer
EANs 6970019291826
ReleaseDate 0000-00-00

Country	USA
Brand	Alstar
Manufacturer	Alstar
Binding	Electronics
ItemPartNumber	SKU_AM_ETA235A
Model	SKU_AM_ETA235A
Warranty	2 Year Manufacturer
EANs	6970019291826
ReleaseDate	0000-00-00

Alstar 2-Inch Telescope Eyepiece Extension Tube Adapter - Optical Length 35mm - with Standand 2-Inch Filter Threads