Baader M54 Extension Tube 40 mm

Baader M54 Extension Tube 40 mm

Description

The Baader M54 Extension Tube – 40 mm provides a reliable way to precisely set the backfocus distance in systems using M54x0.75 thread connections. Ideal for large astrophotography cameras or accessories that require accurate spacing to achieve focus.

It includes a female M54 thread on the telescope side (3.5 mm deep) and a male M54 thread on the camera side (3 mm long). Its effective optical length is 40 mm. Made from high-quality aluminum, it combines low weight with mechanical durability.

This extension tube reflects Baader’s shift to a modern 3 mm thread standard to suit compact imaging equipment. It is fully compatible with current Baader systems in the T-2, M48, and M54 series, making it a versatile and essential part of any imaging setup.

Technical specifications

• Manufacturer: Baader Planetarium

• Product code: 2958740

• EAN: 4047825052278

• Adapter family: M54 System

• Optical length: 40 mm

• Adapter type: Extension

• Telescope-side connection: M54 x 0.75 female (3.5 mm depth)

• Camera-side connection: M54 x 0.75 male (3 mm length)

• Inner diameter: 51 mm

• Outer diameter: 59 mm

• Net weight: 0.05 kg

• Material: Aluminum