Founder Optics 3 mm LER Alien 1.25" Eyepiece - A-LER-3 spo-disabled economical Celestron Telescope with a

economical Celestron Telescope with a superb optical system

SKU S11220 UPC 050234112208 Optical Design Newtonian Reflector Mirror Coatings 94% Aluminum Glass Type Borosilicate Primary Aperture (mm) 254 mm F/Ratio f/4 Focal Length (mm) 1000 mm Secondary Diameter 89 mm Secondary Obstruction (diam) 35% Secondary Obstruction (area) 12% Dawes Limit 0

and weighs only 495 grams

we recommend the B1800 blocking filter or the B3400 blocking filter if you will be using a full-frame camera

Founder Optics 3 mm LER Alien 1.25" Eyepiece - A-LER-3 spo-disabled economical Celestron Telescope with aAlien 3 mm Long Eye Relief Eyepiece Wow, Alien eyepieces are out of this world! With a very comfortable 20 mm of eye relief across the series, Alien eyepieces are a joy to view through; even high magnification focal lengths like this 3 mm. The 3 mm Alien eyepiece is parfocal with all other eyepieces in the Alien line, which means you will not need to re focus when you change eyepieces for a different magnification. The cool looking eyepiece body is