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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
Because of the very low thermal expansion in quartz glass
The item is free shipping in US mainland only
we apply the fool proofed connectors (XH2
fully multi-coated
ALT : nema23 ( driver set 2
GSO RC 0.75x Reducer Because of the very low1. GSO 0. 75x focal reducer is designed only for Ritchey Chretien telescopes 2. Reducer is 2 4 elements fully coated lens, provide a wider field of view and larger aperture for astrophotography 3. The special camera adapter and 2 eyepiece adapter are included. 4. The GSO 0. 75x focal reducer provides about 80mm back focus. Please follow the instruction to derive best performance. 5. Free shipping in US mainland