WebThis RC OTA comes with a 150mm (5.9”) mirror with a 1370mm focal length, giving it a relatively fast focal ratio of f/9 in a compact steel tube that’s only 15.4” long. The precisely figured hyperbolic primary mirror is made from quartz for enhanced thermal stability. WebSharpstar RC308 3" Focuser & 2.5" 0.8x Reducer for 10-16" GSO RC Telescopes . Our Price: $719.00. In Stock. Add to Cart. Free US Shipping. ZWO EAF Electronic Automatic Focuser - Standard (New 5V Version) # EAF-5V-STD . Our Price ... Linear bearing 3.25” 10:1 rotatable Crayford focuser with 50mm focus travel and tension and locking knobs to ...
GSO RC 10 inch, Truss Tube, Ritchey-Chretien …
WebSep 15, 2024 · Looks like too much compromises. I would expect classical Cassegrain to be at least F/18, but it seems that GSO opted for F/12 for a number of reasons: 1. Reuse of tube and other components from existing RC model (both 6 and 8 inch) - F/18 or longer would require longer tube. 2. WebTeleskop-Service has optimized this 14" RC especially for astrophotography. The OTA comes with carbon trusses having a thermal expansion of nearly 0. The OTA weight is 30 kg and it has a Losmandy style dovetail rail on both sides. Our 14" f/8 RC Astrograph illuminates a max. field diameter of approx. 70 mm. 魂 あるわけない
GSO 12" f/8 Ritchey-Chretien Astrograph Telescope - Agena Astro
WebThe GSO 12" f/8 Ritchey-Chretien Truss Tube Astrograph is a true RC telescope and will give you spectacular photo results also with large format camera sensors. But also visual observing is a highlight with this powerful telescope. The telescope is transportable and will be carried from mounts of the Skywatcher EQ8 class and upwards. WebMar 29, 2024 · Image 1. American astronomer George Willis Ritchey and French astronomer Henri Chrétien invented the Ritchey–Chrétien telescope (RCT) in the early … WebSharpstar RC308 3" Focuser & 2.5" 0.8x Reducer for 10-16" GSO RC Telescopes . Our Price: $719.00. In Stock. Add to Cart. Free US Shipping. ZWO EAF Electronic Automatic Focuser - Standard (New 5V Version) # EAF-5V-STD ... Linear bearing 3.25” 10:1 rotatable EAF-compatible Crayford focuser with 50mm focus travel and tension and locking knobs … tasa dólar dgii 2021