ArteSky

ARTEC astrographs employ optics that match the mechanical precision of the instrument. Key specifications include:

• Reflectivity greater than 95%
• Surface correction of λ/8 or better
• Strehl ratio of 0.95 or higher

High-Performance Optics – Quartz Mirrors, Superior Coatings

• Optical design: Classic Newtonian
• Primary mirror diameter: 206mm (conical quartz)
• Secondary mirror diameter: 88mm
• Native focal ratio: f/4.0
• Focal length: 800mm (912mm with coma corrector)
• Included coma corrector: 1.14x, resulting in f/4.5
• Mirror material: High-grade quartz with >95% reflectivity
• Optical correction: λ/8 or better
• Strehl ratio: ≥ 0.95
• Linear obstruction: 44%
• Fully illuminated field: 39mm
• Corrected field: 55mm – ideal for full-frame sensors

Each optical set is selected to match the telescope’s overall precision:

• Reflectivity > 95%
• Correction of λ/8 or better
• Strehl Ratio ≥ 0.95

Each optical set is selected to match the telescope’s overall precision:

• Reflectivity > 95%
• Correction of λ/8 or better
• Strehl Ratio ≥ 0.95

Anyone who has ever explored the starry sky with a heavy pair of large binoculars will be familiar with the problem: the higher the object is in the sky, the more uncomfortable it becomes to observe. This is exactly where the Artesky V2 parallelogram mount comes in – and it does its job so well that you almost forget the binoculars have any weight at all.

• The mount supports instruments weighing up to approx. 7 kg
• Optimal balance and free swivelling from the horizon to the zenith
• Very well suited for astronomy and landscape observation
• 3/8" tripod thread (internal thread) on the base, so the mount fits all stable photographic tripods and many astronomical tripods
• The binoculars are attached via 1/4" and 3/8" threads. A prism clamp can be easily attached
• The scope of delivery includes the mount and counterweight bar – all counterweights for bars with a 20 mm diameter are compatible