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Next level telescope ready for more. ASA600 OTA is the perfect fit for the ASA Direct Drive mounts with absolute encoders. As all ASA telescopes the ASA600 is equipped with quartz glass optics from ASA. Our optics guarantee diffraction limited performance and best micro roughness numbers even under the most perfect earthbound astronomical seeing conditions while maintaining a fast f-ratio primary mirror design leading to less obstruction, higher contrast and a more compact system. f7/f2.5 full carbon Richey-Chrétien design with absolute encoder secondary mirror focusing unit. This big 600mm telescope is also available as a package in combination with a ASA DDM200 Direct Drive mount and also as a package in combination with a ASA DDM100 Direct Drive mount! Main Facts
Optical design
Ritchey-Chrétien RC
Linear central obstruction
40%
Focal length
4200mm
Focal ratio system
f7
Clear Aperture / Focal Ratio Primary Mirror
600mm (23.6 inch) / f2.5
Image field
100mm (1.36 degrees)
Mirror material
Fused silica
Surface quality
>94 strehl
Microroughness
1nm RMS / <0.7nm Ra
Coating
Al+SiO2 >96 %
Back Focus from flange
210.38mm
Weight tube
105kg (231lbs) |