Sharpstar 200 F/3.2 PNT newton astrograph with 4-lenses reducer/corrector

Sharpstar 200 F/3.2 PNT newton astrograph with 4-lenses reducer/corrector

Sharpstar presents a newton astrograph called 200 F3.2 PNT, a mirror astrograph composed by a primary parabolic mirror F/3.8, a standard secondary mirror and a four lens 0.85x reducer/corrector capable to cover a 44 mm imaging circle, i.e. up to the full-frame image format (24x36 mm). The reducer/corrector takes down focal length to 640 mm (F/3.2). Main carbon tube helps to minimize flexures and stabilizes focus. A fantastic instrument for wide-field imaging!

Optical tube has acclimatation fan on the rear as well as buttons for fan activation and primary mirror dew heater. A digital panel shows temperatyure and humidity in real time.

Features

• Optical design: newtonian reflector with parabolic primary mirror and 4-lens reducer/corrector at the focal plane
• Primary mirror: 200 mm
• Secondary mirror: 90 mm
• Mirror substrate: low expansion H-PZ33 borosilicate (like Pyrex) with high-reflectivity Enhanced-aluminiun coating (96%)
• Linear obstruction: ~ 45% (20,25% area)
• Focal length: 640 mm
• Focal ratio: F/3.2
• OTA length: 633 mm
• Diametro esterno tubo ottico: 280.5 mm
• Backfocus: 55 mm from the M54x0.75 threaded adapter, 52 mm from the M48x0.75 threaded adapter
• OTA build with carbon and light aluminium alloys CNC machined
• 3" R&P focuser with micro-pinion assembly, integrated optical corrector (removable) and 1.25" adapter (removable).
• Comes with Losmandy dovetail plate, hard transport case, universal finder base, CNC rings and handle.
• Weight: around 8 Kg OTA only, 9.46 Kg complete with rings, dovetail and handle

Size

Spot diagram

We will publish soon pictures taken with this astrograph, stay tuned!

Launch price 2999,00 €!!!