SCT to M42 Adapter for Schmidt-Cassegrain Telescopes

The SCT to M42 Adapter provides a simple and secure way to connect M42 astrophotography accessories to compatible Schmidt-Cassegrain Telescopes. Designed to convert the telescope's SCT connection to a standard M42 × 0.75 thread, it expands your options for attaching cameras, filters, spacers and other astronomy imaging accessories.

Connect M42 Astrophotography Accessories

The adapter provides a standard M42 × 0.75 connection for compatible astronomy cameras, filters, spacers, extension tubes and other imaging equipment, making it a practical addition to SCT astrophotography setups.

Compatible with Schmidt-Cassegrain Telescopes

Designed for use with compatible Schmidt-Cassegrain telescopes, including common 5", 6", 8", 9.25", 11" and 14" SCT models.

Durable Anodised Aluminium Construction

Manufactured from high-quality anodised aluminium, the adapter provides a strong and rigid connection while maintaining a lightweight design suitable for astrophotography equipment.

Compact 8mm Optical Length

With an effective optical length of just 8mm, excluding the male thread, the adapter adds minimal spacing to your imaging train and makes it easier to manage back focus requirements.

Precision-Machined Design

The adapter features a 59mm outer diameter and precision-machined threads to provide a secure fit between your SCT telescope and compatible M42 accessories.

Key Features

Converts an SCT connection to M42 × 0.75
Compatible with a wide range of M42 imaging accessories
Suitable for compatible 5", 6", 8", 9.25", 11" and 14" SCT telescopes
High-quality anodised aluminium construction
8mm effective optical length excluding male thread
59mm outer diameter
Lightweight and compact design
Ideal for astrophotography imaging setups

Ideal For

Schmidt-Cassegrain telescopes, astronomy cameras, filters, spacers, M42 accessories and astrophotography imaging setups.