Starlight Instruments 3.0" Adapter for Explore Scientific CF EDT102 w/ Sliding Dew Shield

This adapter is custom-made to fit the 4.6" inside diameter of the Explore Scientific CF EDT102 tube (sliding dew shield model). It ensures a perfectly centered, rigid connection for a 3.0" Feather Touch focuser, which is not possible with generic adapters.

Yes: besides the Explore Scientific EDT102 Carbon Fiber with sliding dew shield, it fits the ES115mm. Using it on other models will result in an improper fit and potential damage to your equipment. Starlight Instruments machines different adapters for other telescopes.

Upgrading to a Feather Touch focuser provides significant advantages for astrophotography. Key benefits include:

• Zero Image Shift: The robust helical rack-and-pinion design of the 3.0" Feather Touch focuser reduces the focus shift common with stock focusers.
• Heavy Payload Capacity: They can easily support heavy imaging trains, including large cameras, filter wheels, and off-axis guiders, without flexure.
• Fine Focus Control: The dual-speed mechanism allows for extremely precise focus adjustments, critical for achieving sharp stars.

When using a heavy camera setup on the Explore Scientific EDT102, the stock focuser can sag or flex, causing tilted stars, especially at the corners of the frame. This adapter creates a rock-solid foundation for a Feather Touch focuser, which is designed to handle such payloads. This ensures your camera sensor remains perfectly perpendicular to the optical path, resulting in sharp, round stars across the entire field.

Absolutely. The fine control offered by the Feather Touch focuser's 10:1 reduction knob allows you to make minute adjustments that are impossible with a standard single-speed focuser. This precision is essential for nailing critical focus on the faint stars of the Trapezium Cluster within the Orion Nebula (M42), leading to visibly sharper and more detailed images.