Alstar 2" to 1.25" Telescope Eyepiece Adapter - Bundle with - 1.25" UHC Filter

This is a very high quality anodized aluminum adapter that has filter threads at the bottom for 2" telescope filters (48mm threads). It also has an internal brass ring that the set screw hits to hold your 1.25" eyepiece inside. This eliminates marks on your eyepiece barrel. Nice large thumbscrew that is easy to turn even in very cold conditions or with gloves on.

• Allows you to use 1.25 inch eyepieces in any 2 inch telescopes focuser; star diagonal; or holder
• An affordable way to increase the number of eyepieces to use with your 2 inch focuser equipped telescope
• Great for performing lunar and planetary viewing in larger telescopes
• As many celestial objects; such as nebulae; radiate at other wavelengths; a considerable increase in contrast can be achieved by this; The background sky appears darker and all at once; faint details become visible
• 1.25 inch filter thread; each Alstar Ultra High Contrast Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the O III and H beta emission lines