Binorum SuperStrong T2 10mm Extension Tube - Modular Backfocus Component
The Binorum SuperStrong T2 10mm extension tube bridges the gap between standard spacing requirements in complex astrophotographic systems. This T2 10mm extension tube is engineered for astronomers who demand precision when combining multiple optical elements - it provides the flexibility to achieve exact backfocus specifications without resorting to expensive custom solutions or makeshift spacing techniques.
Technical Specifications and Optical Design
With a precisely manufactured 10mm optical length and standard T2 threading (M42x0.75) at both ends, this extension tube integrates seamlessly into any T2-compatible imaging chain. The 10mm dimension makes it ideal for intermediate spacing requirements where 7mm proves insufficient and 12mm overshoots your target backfocus distance. Internal surfaces are meticulously finished with black anodized coating to prevent parasitic light reflections that compromise contrast in extended exposures.
Why 10mm Solves Critical Spacing Problems
Many astrophotographers encounter backfocus discrepancies when combining certain focal reducers (typically 40-50mm backfocus) with field flatteners (requiring additional 10-15mm spacing). The 10mm extension tube fills this exact role, allowing you to achieve manufacturer specifications without modification. Professional imaging systems often require this intermediate dimension when daisy-chaining optical accessories - a single miscalculation at this step cascades into focus errors across your entire planetary and deep-sky imaging workflow.
Practical System Integration
The 10mm tube excels when building systems that combine Barlow lenses with focal reducers, where the intermediate spacing is critical for maintaining collimation. Additionally, when using filter wheels positioned between your focal reducer and field flattener, the 10mm tube provides the necessary optical spacing to prevent vignetting while preserving proper sensor plane alignment. This makes it an essential component for photographers who regularly swap between planetary and deep-sky configurations.
Binorum Engineering Standards
Like all Binorum SuperStrong components, the 10mm tube is machined from premium materials with exacting tolerances. Thread precision ensures vibration-free installation, while the black anodized interior eliminates stray light degradation. Each unit is calibrated to verify exact 10mm optical length before dispatch.
System Flexibility
The 10mm extension tube represents modular thinking - it works perfectly alongside 4mm, 7mm, 12mm, and 20mm variants to create virtually any backfocus configuration your imaging system demands. Build once, adjust precisely, image consistently.
Conclusion
For astrophotographers who understand that precision spacing equals sharp images, the Binorum SuperStrong T2 10mm extension tube is a critical inventory item. It solves the intermediate spacing challenge that standard tubes cannot address, making it essential for serious deep-sky and planetary imaging systems.
