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They work great for following objects as they move across the night sky
Un-recharged shelf life of up to 10 years – 3 times better than lithium-ion and 10 times better than sealed lead-acid designs
19 fiber-optic backlit LED buttons NexStar+ Database 40
Using more expensive high-index glasses to reduce astigmatism and lateral color at the field's edge
5mm Length 103
ES 2" Diagonal Astro Days They work great for followingFeatures The Explore Scientific 2 inch Dielectric Coated Diagonal Mirror comes complete with 1. 25 inch Adapter and dust covers. Solid construction and light weight, this first suface coated diagonal mirror reflects 99% of the light to help maintain the brightest possible image from your telescope. The insert barrel is a double taper, so it can be smoothly inserted or withdrawn from the focuser. The wide part of the taper prevents the diagonal from
