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Binorum SuperStrong M48 5mm Extension Tube

Precision Optical Spacing for Perfect Focus

The Binorum SuperStrong M48 Extension Tube with 5mm length is a precision optical connecting element designed for accurate backfocus adjustment in telescopes and astrophotography setups. This compact tube enables fine-tuning of the distance between the optical system and detector, which is crucial for achieving sharp projection across the entire field of view.

Professional Build Quality and Threading

The extension tube is manufactured from high-quality materials with precise M48 threading on both ends, ensuring reliable connection to telescopes and other optical components. Thanks to its compact 5mm length, it provides very fine adjustment capability without significantly affecting the overall length of the optical assembly. This is particularly important when working with cameras or eyepieces where maintaining proper distance is essential for optimal imaging performance.

Technical Specifications

  • Thread type: M48 x 0.75 male/female
  • Length: 5mm
  • Material: Precision-machined aluminum
  • Anodized black finish
  • Weight: Approximately 25g
  • Compatible with standard M48 astronomical accessories

Applications and Use Cases

This optical element is ideal for astronomers and astrophotographers who need to precisely adjust their optical setup. The use of extension tubes is common practice when optimizing distance for various detector types, whether CCD cameras, CMOS sensors, or traditional eyepieces.

Perfect for:

  • Fine backfocus adjustment in astrophotography systems
  • Achieving parfocal distance between different accessories
  • Correcting flange focal distance issues
  • Building custom optical trains with precise spacing
  • Optimizing field flattener and reducer positioning

Why Choose Binorum SuperStrong Series

The Binorum brand was created by astronomers for astronomers, with emphasis on highest quality and reliability. The company specializes in a wide range of astronomical accessories that meet the demanding requirements of modern astronomy. Each Binorum product undergoes strict quality control, ensuring long-term reliability and precise functionality. Through focus on innovation and quality materials, the Binorum brand has earned the trust of astronomers worldwide. The SuperStrong series represents the pinnacle of mechanical precision, offering robust construction and exceptional threading accuracy that professional astronomers depend on for critical observations and imaging sessions.