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Explore Scientific 100° Series Argon-Purged Waterproof hyper-wide field eyepieces are optimized to produce high contrast
The Night Sky is Designed to be Used
40 mm eyepiece included (70x)
while the mount retains the PEC recordings
Collimation Eyepiece - 1.25" Diagonal Explore Scientific 100° Series Argon-PurgedThe Celestron Cheshire Collimation Eyepiece is ideal for precise collimation of Newtonians and helpful for aligning Schmidt Cassegrains. This special eyepiece fits into 1" focusers or diagonals. Alignment is easy using the small opening on one end and thin cross hairs at the other end. The collimation eyepiece is more accurate than the simple Collimation Tool.
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