Artesky 3" RC focuser (Artesky, SKU: ART8019-S) is a manual focuser for Ritchey–Chrétien telescopes, designed for heavier visual and imaging equipment. Teflon-supported motion and fine focusing aid focus adjustment, while rotation allows the camera orientation to be set.
Compatibility depends on the connection of the particular RC tube and the available optical path; telescope aperture alone is insufficient for selecting the focuser.
• load capacity up to 6 kg
• fine focusing with a 1:10 reduction
• rotation through 360° for framing
• focuser position lock
• multiple threaded connections for accessories
• focuser: Artesky 3" RC
• adapters for 2" and 1.25" accessories
• type: manual focuser for RC telescopes
• nominal size: 3"
• telescope-side connection: M117
• application: compatible GSO, Omegon, Astro-Tech and Altair 10", 12", 14", 16" and 20" RC optical tubes
• maximum load: 6 kg
• fine-focus reduction: 1:10
• rotation range: 360°
• drawtube support: Teflon elements
• threaded connection: M78 × 1, female
• threaded connection: M74 × 1, male
• threaded connection: M68 × 1, female
• slip-fit connections: 2" and 1.25"
• compression-ring clamp: yes
• weight: 1640 g
The focuser allows a compatible RC optical tube to be upgraded and the connection to be matched to a camera, corrector or visual accessories.
