{"id":33676,"date":"2025-11-14T13:08:34","date_gmt":"2025-11-14T12:08:34","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=33676"},"modified":"2026-09-10T14:45:34","modified_gmt":"2026-09-10T12:45:34","slug":"william-optics-ap-61-300-61-apochromatic-refractor-redcat-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-ap-61-300-61-apochromatische-refractor-redcat-ota\/","title":{"rendered":"William Optics AP 61\/300 61 Apochromatic Refractor RedCat OTA"},"content":{"rendered":"

Quadruplet with field rotator: more openness, more detail<\/strong><\/h2>\n\n\n\n

The William Optics RedCat 61<\/strong> The Cat-concept moves to a 61 mm aperture and 300 mm focal length. The quadruplet optics provide a bright, sharp, and flat image across the entire frame, and the built-in field rotator precisely positions your composition without disturbing the focus.<\/p>\n\n\n\n

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Made for serious deep-sky compositions<\/h4>\n\n\n\n

The Petzval design with integrated corrector keeps stars round all the way to the corners of a full-frame sensor. At f\/4.9, exposures remain short and noise low. The included tube rings and Arca\/Vixen dovetail provide a stable, flex-free mount for camera and guidescope.<\/p>\n<\/div>\n<\/div>\n\n\n\n

In the box<\/strong><\/h3>\n\n\n\n