Sky Mentor 1.25" Green Filter - TA77 Plug Type - US Use of high-index glasses delivers

Use of high-index glasses delivers low distortion and astigmatism

The Dwarf 3 is so easy to use

the iOptron Photron RC10 - 10 inch Ritchey-Chrétien Telescope OTA also includes built-in cooling fans for the primary mirror to help quickly cool down the mirror surface

Integrated aluminum accessory tray

The EFW stepper motor is made by NPM in Japan

Sky Mentor 1.25" Green Filter - TA77 Plug Type - US Use of high-index glasses deliversThis green 1. 25" filter screws onto standard 1. 25" eyepieces and other accessories (like a Barlow) with 1. 25" threads. Here are some of the most common uses for a green filter when it comes to observing our celestial neighbors: While this filter will make the moon look green, it will enhance the contrast between lighter and darker features, allowing you to see them better. A green filter can be useful when observing Venus. For daytime observing, it