2" 3X Focal Extender 1800-2000 Filters for Direct Observation of

Filters for Direct Observation of the Sun

they provide a comfortable and customizable viewing experience for all users

Whether you're birdwatching

Featuring a 254mm (10-inch) primary mirror

Special filter to suppress light pollution

2" 3X Focal Extender 1800-2000 Filters for Direct Observation ofThe Explore Scientific 3X Focal Extender (2. 0 inch O. D.), accepts both 1. 25 inch O. D. and 2. 0 inch O. D. format eyepieces and camera adapters. Fully EMD Coated on all air to air lens surfaces, with all lens elements edge blackened to produce superior contrast, this focal extender adds some real versatility to your telescope accessory line up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that