Astronomy Specialist

OFFICINA STELLARE RiFAST 500 F/3.8

$77,500.00 AUD
SKU: OS-RIFA500SGA

Officina Stellare

RiFAST

500 mm

f/3.8

1900 mm

85 kg


Style

 

The RiFAST 500 is an astrograph with a new revolutionary optical design proprietary of Officina Stellare, designed by Massimo Riccardi.

 

OPTICAL DESIGN

The primary mirror is aspherical and the secondary mirror is spherical, a precise design to make collimation easier. The RiFAST includes a 3 elements flattener of which 2 are aspherical and it is placed near the focus position to avoid any chromatic aberration.

The telescope is a native f/3.8 with a flat field up to 80mm. The scope has the option to be used with a dedicated 0.78x reducer (XTFR078), bringing the focal ratio to f/2.96.

 

MECHANICAL PERFORMANCE 

The collimation is stable as ever before due to an improved mechanical design. Every RiFAST is tested under the sky and is tested in Officina Stellare's factory, ensuring a perfect collimation.

The secondary mirror can be motorized for focusing, leaving the imaging train fixed as screwed to the backplate, a good solution for heavy cameras and accessories. It is also possible to install a tip-tilt mechanism. 
Remote observers can upgrade their RiFAST with optional primary mirror shutters to avoid moisture and dust deposit on the telescope’s mirror when not in use.

 

 

Optical design

RiFast

Diameter

500 mm

Focal length

1900 mm

Focal ratio

f/3.8

Linear obstruction

55%

Fully corrected and illuminated field

80 mm

Weight

85 kg

Backfocus extraction

~ 240 mm

SKU

RIFA500