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Baader Planetarium Varilock 40mm T-2 Extension Tube

SKU: AA1508153 MFR: T2-25B
$39.00
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Key Features

  • Achieve precise focus with this 40mm Baader Planetarium T-2 extension tube.
  • Finely adjust your telescope's back focus using this Varilock extension tube.
  • Maximize image quality with a T-2 extension, reducing vignetting and aberrations.
  • Perfect for fine-tuning astrophotography setups, ensuring optimal image clarity.
  • Enjoy seamless integration with T-2 threaded components for versatile use.
  • Durable build ensures stable and secure connection for your telescope optics.
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Special Order?Estimated to Ship: 10/22/2025
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Baader Planetarium T2-25 Specifications

  • Tube Length

    40mm / 0.062"

  • UPC Code

    4047825016225

About Baader Planetarium T2-25

The Baader Planetarium Varilock 40 mm T-2 contains two extensions to adjustable rings in the T-2 System. You can make a determination of the preload by loosening or tightening the ring - or it can be adjusted by means of the extension tube's millimeter scale to the desired length. Initial tension ring is included.

Varilock T-2 systems are ideal tools for setting the exact focus on intervals - such as with H-alpha solar filters or image field correctors with critical focus position. A further application can be both the Varilock T-2 thread removed by unscrewing the eyepiece's included set screws and replacing it with the included ring swallow, which is directly connected to the T-thread of Canon EOS and Nikon-mount DSLR cameras.

Baader Planetarium T2-25 Features

  • The Baader 40 mm T-2 Extension Tube is part of the Varilock T-2 System for setting the exact focus at intervals
  • Determining the preload by adjusting the extension tube's millimeter scale to the desired length
  • The Baader 40 mm T-2 Extension Tube incorporates both male and female T2 threads
  • Helps to set H-alpha solar filters and image field correctors with critical focus position

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Key Features

  • Achieve precise focus with this 40mm Baader Planetarium T-2 extension tube.
  • Finely adjust your telescope's back focus using this Varilock extension tube.
  • Maximize image quality with a T-2 extension, reducing vignetting and aberrations.
  • Perfect for fine-tuning astrophotography setups, ensuring optimal image clarity.
  • Enjoy seamless integration with T-2 threaded components for versatile use.
  • Durable build ensures stable and secure connection for your telescope optics.