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RiFAst 400F/3.8 Ceramic Glass Full-Carbon Optical Tube [OS-RIFA400CGC]

OS-RIFA400CGC
$40,280.77 USD
specialorder Scheduled Delivery
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.

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About RiFAst 400F/3.8 Ceramic Glass Full-Carbon Optical Tube [OS-RIFA400CGC]

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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