OCAL-PRO electronic collimator (OCAL / Artesky, SKU: OCAL-PRO) is a camera-based collimator for checking the alignment of telescope optical components. The image in the OCAL software and adjustable reference circles help assess mirror and focuser positions during collimation. The PRO version works with a Windows computer or a compatible Android device via USB OTG.
For SC and RC telescopes, interpretation of the image depends on the optical design. The collimator assists adjustment, but final alignment should be checked on a star image following the telescope instructions.
• on-screen view of the optical system
• adjustable reference circles in the software
• threaded T2 attachment reducing dependence on the focuser clamp
• support for Android devices with USB OTG
• iOS is not supported
• electronic collimator: OCAL-PRO
• cable: USB, 1.5 m
• adapter: USB-C OTG
• adapter: T2/M48
• nosepiece of 1.25" diameter with a T2 connection
• type: camera-based electronic collimator
• model: OCAL-PRO
• thread: M42 × 0.75 (T2)
• computer operating system: Windows 7 or later
• mobile operating system: Android with USB OTG support
• iOS support: no
• connection to the control device: USB
• primary application: Newtonian telescopes
• other optical designs: SC and RC, following the procedure appropriate to the telescope
• dimensions: 51 × 51 × 32 mm
• weight: 134 g
• warranty: 24 months
The on-screen view makes it easier to check successive adjustments without repeatedly looking into the focuser.