Quick Answer

• Connects cameras or eyepieces to telescopes via a 2-inch M48 thread.
• Durable aluminium alloy construction for longevity.
• 7cm (2.8 inches) total length for optimal focal plane adjustment.
• Compatible with standard 2-inch telescope focusers and M48 threaded accessories.

What is the VBESTLIFE Telescope Extension Tube?

This is a 2-inch M48 threaded extension tube designed to facilitate the connection between telescope focusers and camera accessories or eyepieces. It provides a crucial 7cm (2.8 inches) of extension, allowing you to achieve the correct focal plane for sharp imaging or comfortable viewing.

Constructed from high-quality aluminium alloy, this adapter ensures durability and a secure fit. Its 2-inch diameter is standard for most telescope focusers, while the M48 thread on the other end is ideal for astrophotography cameras, filters, or specialized eyepieces.

How does this extension tube improve astrophotography?

The primary function of this extension tube is to provide additional back focus distance, which is often necessary when using cameras with telescopes that have limited focusing travel. By extending the optical path by 7cm, it allows your camera sensor to reach the focal point, enabling sharp and detailed images of celestial objects.

The M48 thread is particularly beneficial for astrophotography as it offers a wider aperture than standard M42 T-threads, potentially reducing vignetting and improving image quality. This adapter is a versatile accessory for both visual observers and imagers looking to expand their telescope's capabilities.

Key Specifications

Specifications:

• Weight: Approx. 114g
• Total length: 7cm / 2.8inch
• Thread diameter: 2inch M48x0.75
• Material: Aluminium alloy
• Head circle diameter: 5cm / 2inch
• Brand Name: VBESTLIFE
• Bottom circle diameter: 5.9cm / 2.3inch
• Model Number: Extension Tube Adapter

Frequently Asked Questions:

What is the thread size of this telescope extension tube?

The extension tube features a standard 2-inch diameter opening and an M48x0.75 male thread. This allows for compatibility with most 2-inch telescope focusers and M48 threaded accessories like cameras or filters.

What is the total length of the extension tube?

The total length of the VBESTLIFE extension tube is 7cm (approximately 2.8 inches). This provides sufficient extension to achieve focus with many telescope and camera combinations.

What material is the extension tube made from?

The extension tube is constructed from durable aluminium alloy. This ensures a sturdy build that is resistant to corrosion and provides a secure connection for your optical equipment.

What is this extension tube used for?

It is used to provide additional back focus distance, enabling cameras or eyepieces to reach the focal plane when attached to a telescope. This is particularly useful for astrophotography.