Sky-Watcher Coma Corrector for F5 Newtonian Reflectors

The Sky-Watcher Coma Corrector for F5 Newtonian Reflectors is a high-quality field-correcting lens specifically optimized for ƒ/5 reflecting telescopes. It is designed to deliver flat, pinpoint stars across the entire field of view, making it an essential tool for both visual observers and astrophotographers. By eliminating the inherent "coma" distortion found in fast mirrors, it allows you to take full advantage of full-frame Digital SLR cameras to produce superb, professional-grade images. Crucially, this corrector maintains the telescope's native focal length, providing a corrected field without any increase or reduction in magnification.

The package is a comprehensive solution for various equipment setups, including the 2” Coma Corrector lens with a male T-thread, a 2” spacer, and a 2” eyepiece adaptor for visual use. For photography, the corrector is designed to be used in conjunction with your camera’s specific T-ring adaptor for a secure and precise connection. Whether you are hunting for faint deep-sky details or enjoying a wide-field "spacewalk" view, the Sky-Watcher F5 Coma Corrector ensures that your optics perform at their absolute peak from the center to the very edge of the frame.

Product Features in Detail

True Edge-to-Edge Sharpness

Standard Newtonian mirrors produce stars that look like tiny comets at the edges of the field. This corrector reshapes that light back into pinpoint dots, allowing you to use 100% of your camera sensor's real estate without having to crop out distorted corners.

Preserved Focal Ratio

Many focal reducers change how your telescope behaves, but this 1.0x corrector preserves the ƒ/5 ratio. This means your exposure times and field of view remain exactly as expected, just with significantly higher image quality.

Seamless T-Ring Integration

The lens housing features a standard male T-thread. This allows you to screw your DSLR's T-ring directly onto the corrector, creating a rigid, threaded connection that prevents the camera from tilting or slipping during long exposures.

Visual "Spacewalk" Experience

By using the included 2" eyepiece adaptor, visual observers can enjoy crisp stars even in wide-angle eyepieces. This creates a much more immersive experience when viewing large targets like the Pleiades or the Andromeda Galaxy.

High-Transmission Coatings

Sky-Watcher utilizes multi-coated optical elements to ensure that while the coma is corrected, the light transmission remains high. You won't lose the precious photons gathered by your primary mirror, keeping your images bright and full of contrast.

Comprehensive Accessory Kit

The inclusion of a 2" spacer and eyepiece adaptor means you don't have to hunt for extra parts. Whether you are switching from a night of photography back to visual stargazing, you have all the necessary components in one box to achieve focus.