The set of optics for
Ritchey-Chretien telescope RC360

Primary mirror diameter

360 mm

Primary focal ratio


Secondary mirror diameter

140 mm

Equivalent focal ratio


Equivalent focal length

2880 mm

Back Focus (from primary mirror surface)

307 mm

Primary to Secondary Spacing

702 mm

Primary mirror hole

120 mm

Primary mirror thickness

45 mm

Secondary mirror thickness

20 mm

Mirrors material

LK-7 (low expansion optical glass) Optionally optics from AstroSitall may be maintained

Optical accuracy

1/4 wave peak-to-valley of wave front in assembled system or better and 1/25 wave RMS or better, Strehl Ratio is 0.95 or is higher.
The interferometric test report is supplied with each optical sets

Coating of surfaces

Al + SiO2 (Quartz) overcoat


4200 EURO

Copyright © 2007