Antlia now offers an off-axis guider (OAG) with a filter drawer assembly that accommodates 2” astrophotography filters. The OAG features a large 12mm x 12mm prism that offers a wider field of view – and a larger choice of guide stars – when used with guide cameras with larger sensors. The guide camera slides into a 1.25” helical focuser with 10mm of travel. The OAG includes a range of adapters to interface with the main imaging camera and telescope, and each side rotates through 360 degrees for maximum flexibility. With a thickness of just 37.5mm, the Antila OAG integrates with a wide range of telescopes and cameras, while leaving room for additional astrophotography accessories.
Manufacturer Website: http://www.antliafilter.com/