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Officina Stellare RiFast 400

Officina Stellare RiFast 400
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Price:  Please Call to Confirm the Price(Inc. 20% VAT)

Product Code:  OSRIF400
Manufacturer:  Officina Stellare
Telescope Type:  Riccardi RiFast Astrograph
Aperture (mm):  400 mm

Officina Stellare


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.

ENTRY PUPIL DIAMETER:
400 mm (16'')
FOCAL RATIO:
F/3.8
FOCAL LENGTH:
1520 mm (60'')
LINEAR OBSTRUCTION:
55%
FULLY CORRECTED AND ILLUMINATED FIELD:
70 mm
WEIGHT:
40 Kg
BACK FOCUS EXTRACTION:
about 240 mm (9.5'')

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