SVBONY CA1 1.25″ Extension Tube is a compact all-metal adapter designed to increase the optical path length between a telescope and eyepiece or camera. It is commonly used to achieve correct focus in astrophotography and visual observing setups where additional back focus is required.

Key Features

• Improved focusing flexibility
  Adds additional optical length to help achieve precise focus when the focuser travel alone is insufficient.
• All-metal construction
  Manufactured from lightweight aluminium for rigidity, durability, and reliable alignment during imaging and visual use.
• Extended back-focus range
  Particularly useful when using cameras, Barlow lenses, or high-power eyepieces that require extra spacing.
• Standard 1.25″ compatibility
  Features a 1.25-inch barrel size, compatible with most telescope focusers, eyepieces, and camera adapters.
• Simple installation
  Installs quickly between existing components, providing a secure, slip-free connection without tools.