Celestron Aluminum Dew Shield with Cover Cap - 14"

This dew shield is designed for 14” Schmidt-Cassegrain, EdgeHD, and 36cm RASA telescope tubes manufactured after 2006. Its fit depends on the specific tube dimensions and dovetail placement, which may differ on much older models. The cutouts are designed to accommodate the dovetail rails on modern configurations.

The shield's 20.5" length extends the optical tube, slowing the radiative cooling of the Schmidt corrector lens. By isolating the glass from the open night sky, it keeps the lens surface temperature from dropping to the dew point as quickly, significantly delaying or preventing the formation of condensation.

While 5.4 lbs is a significant addition, mounts appropriate for a 14" telescope are designed to handle such payloads. You will need to re-balance your telescope after attaching the dew shield, typically by sliding the optical tube forward in its cradle to compensate for the weight added to the front.

Yes, the 1.5" x 2" cable slot is perfectly positioned to route cables from a Hyperstar imaging system or a Celestron Dew Heater Ring. This provides a clean setup and prevents cables from hanging in front of the corrector plate, where they could cause diffraction artifacts in your images.

The heavy-duty, 22.4 oz aluminum cover cap provides a completely opaque, light-proof seal over the dew shield. This is critical for astrophotography, as it allows you to capture calibration frames (dark frames) without any stray light reaching the sensor, ensuring a pure thermal signal recording.

The shield attaches using two plastic clips that are tightened to grip the front cell of the telescope tube. There are also cutouts to accommodate the CGE or Losmandy-D style dovetail bars typically found on the top and bottom of the optical tube, ensuring a secure and proper fit.