Omegon Dust Cap for 254 mm OTA (Optical Tube)

Omegon Dust Cover for 254 mm OTA (Optical Tube Assembly): closes the aperture when the tube is not in use

In a reflecting telescope, the primary mirror is at the bottom of the tube, with the opening as the only way out. Anything that enters through that opening will eventually hit the mirror. Dust can be blown away, but cleaning a mirror is work you'd rather not do, and it doesn't do the coating any favors.

This cover seals the opening once you are finished observing. This keeps the inside of the tube clean and you need to touch the optics much less often.

Features

• Fits the opening of 10 inch pipes (254 mm)
• Plastic version
• Grip ribs on the side for hold with gloves
• Slides over the tube and sits firmly in place
• Suitable for storage and transport

Compatibility

Suitable for 10-inch tubes such as the Omegon Pro RC 254/2000. When in doubt, measure the outer diameter of your tube, as it differs from the mirror's aperture: an 8-inch Newtonian typically has an outer diameter of around 235 mm.

Specifications

You can find more maintenance articles for this brand on the Omegon brand page.