PROFESSIONAL TELESCOPES "RIFAST"

RiFast. A big, beautiful telescope at f/3.8. What else to say?

Devoted to astrophotograpy, the RiFast family has an unique optical scheme, proprietary of Officina Stellare, another creation of our master optician, Massimo Riccardi. The tree-lens field flattener, with two aspherical elements, is the real masterpiece of this telescope. The secondary mirror is spherical. A precise design choice to make collimation easier.

RIFAST 400

Focal length 1520 mm (60")
Focal ratio F/3.8

RIFAST 500

Focal length 1900 mm (75")
Focal ratio F/3.8

RIFAST 600

Focal length 2280 mm (90")
Focal ratio F/3.8

RIFAST 700

Focal length 2660 mm (105")
Focal ratio F/3.8

RIFAST 800

Focal length 3040 mm (120")
Focal ratio F/3.8

Diffraction-limited over a wide and flat field, the RiFast design will push any camera to its limits... and will do it FAST! The extraordinary f/ ratio allows a higher productivity per night, a significant factor for surveys, SN search, asteroid control, and many other fields of modern astronomy.

The central obstruction is about 50%, but still smaller than similar designs, that simply can't compete under any point of view. The visual contrast is very good, thanks also to the special ultra-dark paints we use.

The corrector group is very close to the focal plane, so chromatic aberration is undetectable.