Officina Stellare - RiLA 400 f/5.2 Standard Glass Aluminum-Carbon Optical Tube

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The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 400 has a f/5.2 focal ratio.

SKU: OFF-RILA400SGA
Manufactured by:
Officina Stellare
 

Product Description

The Officina Stellare Rila Series are known for having a fast focal ratio with a wide corrected field of view while maintaining a lightweight body. The apertures range from 300mm all the way to 800mm. The Rila 400 has a f/5.2 focal ratio.

Once Officina Stellare decided they would make this dream telescope a reality, they put Italian optical designer, Massimo Riccardi, on the job. Riccardi wanted to create a telescope that had the following characteristics:

  • It had to be a fast system.
  • The design needed to be compact and lightweight for its aperture.
  • It would have the least number of surfaces possible while still producing a large corrected field.
  • The secondary obstruction would be as small as possible.
  • These features were made a reality and then some with the creation of the Officina Stellare RiLA (Riccardi Large Astrograph) Series. The design, which is a modification of the Harmer-Wynne, has an aspherical primary and a spherical secondary. A special corrector is placed just before focus. The RiLA is corrected in the visible near IR range, with more than 80% of its energy focused in a 4-6 micron RMS spot.

A wide range of apertures is available, starting at 300mm and topping out at 800mm. The optics are housed in a zero expansion aluminum carbon tube system and there are Losmandy style dovetails mounted on the truss for mounting versatility. 




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Specifications

Name Officina Stellare - RiLA 400 f/5.2 Standard Glass Aluminum-Carbon Optical Tube
Manufacturer Officina Stellare
Model OFF-RILA400SGA
Backfocus Distance about 280 mm (11")
Diameter of Primary Mirror 400 mm (16")
Diffraction Limited in the FULL 105 mm FIELD
Dimensions LxHxW 590x590x950 mm
Focal Length 2080 mm (82")
Focal Ratio F/5.2
Full Corrected Illuminated Field 105 mm
Optical Tube Riccardi Large Astrograph

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