Astronomy Specialist

OFFICINA STELLARE RiFAST 300 F/3.8

$1,000,000,000,000.00

Quantity
- +

 

The RiFAST 300 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 60mm. The scope has the option to be used with a dedicated 0.78x reducer (XTFR078) or a 1.5x extender (XTFE15-300). 

 


f/

Focal length

Corrected Field

MBFL

RiFAST 300 without any optical accessories

3.8

1140 mm

60 mm

125 mm

RiFAST 300 with optional 0.78x reducer

3

889 mm

42 mm

68.5 mm

RiFAST 300 with optional 1.5x extender

5.7

1710 mm

42 mm

170.1 mm

 

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 is 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 a primary mirror shutter to avoid moisture and dust deposit on the telescope’s mirror when not in use.

 

 

Optical design

RiFAST

Diameter

300 mm

Focal length

1140 mm

Focal ratio

f/3.8

Linear obstruction

57%

Fully corrected and illuminated filed

60 mm

Weight

20 kg

Backfocus extraction

~ 125 mm

SKU

RIFA300