Celestron T-Adapter SCT for Prime Focus Astrophotography

With a 38 mm clear aperture and precision-machined anodized aluminum construction, the Celestron T-Adapter SCT delivers a rock-solid, flexure-free connection for prime focus astrophotography on Schmidt-Cassegrain telescopes. This adapter threads directly onto the rear cell of your SCT, replacing the visual back, and provides a standard T-mount thread (M42x0.75) to attach your camera-specific T-ring (sold separately).

Overview

The Celestron T-Adapter SCT is an essential accessory for any astrophotographer using a Schmidt-Cassegrain telescope. It threads directly onto the rear cell of your SCT, replacing the visual back, and provides a standard T-mount thread (M42x0.75) for attaching a camera-specific T-ring (sold separately). With a 38 mm clear aperture and an optical path length of 38 mm, it ensures optimal back focus for most SCTs, enabling sharp, high-contrast images.

What stands out

• Precision-machined from anodized aluminum for durability and a secure fit.
• Compatible with all standard Schmidt-Cassegrain telescopes with a 2" x 24 TPI thread, including Celestron and Meade models.
• Provides a solid, flexure-free connection for long-exposure astrophotography.
• Easy to install: simply thread onto the telescope and attach your T-ring and camera.
• Compact and lightweight, adding minimal load to your telescope's focuser.

Technical details

• Adapter type: Prime focus T-adapter
• Telescope compatibility: Schmidt-Cassegrain (SCT)
• Telescope thread: 2" x 24 TPI (SCT thread)
• Camera mount: T-mount (M42x0.75)
• Material: Anodized aluminum
• Colour: Black
• Optical path length: 38 mm (1.5")
• Clear aperture: 38 mm (1.5")
• External diameter: 50 mm (2")
• Length: 45 mm (1.77")
• Thread pitch (camera side): 0.75 mm
• Thread diameter (camera side): 42 mm
• Construction: Solid, single-piece adapter
• Required accessory: T-Ring specific to camera brand (sold separately)
• Application: Astrophotography

Our verdict

The Celestron T-Adapter SCT is a must-have for SCT owners serious about astrophotography. Its precision build and solid connection ensure sharp images, and its compatibility with standard SCT threads makes it a versatile choice.