Binorum SuperStrong T2 5mm Extension Tube - Modular Backfocus Component
The Binorum SuperStrong T2 5mm extension tube bridges the critical gap between compact and standard spacing requirements. This T2 5mm extension tube is purpose-designed for photographers who require small but meaningful spacing adjustments - the sweet spot between the minimal 3mm adjustment tube and the more substantial 7mm standard spacing tube. For systems demanding moderate intermediate distances, the 5mm tube provides ideal dimensional control.
Technical Specifications and Intermediate Design
With precisely machined 5mm optical length and standard T2 threading (M42x0.75), this extension tube fills a critical niche in optical system design. The 5mm dimension accommodates systems where 3mm proves insufficient but 7mm overshoots spacing requirements. Common scenarios include integrating small auxiliary optics, inserting filter elements with minimal spacing demands, or compensating for manufacturing tolerances in camera T-ring adapters. Black anodized interior maintains optical clarity across compact assemblies.
Practical Spacing Solutions
Many astrophotographers encounter situations where optical components require 4-6mm intermediate distance for proper alignment. Standard 7mm or 12mm tubes force compromises in system architecture. The 5mm tube solves this precisely - allowing you to position secondary optics, rotating polarizers, or filter wheels at exactly the spacing your optical design demands without physical reworking of primary components.
Modular System Building
The 5mm tube shines in modular configurations combining multiple small adjustments. Two 5mm tubes equal 10mm spacing, providing flexibility unavailable with standard tube sizes. This additive approach enables custom spacing configurations matching any system requirement from 5mm through 25mm+ when combined with other tubes.
Beginner-to-Intermediate Applications
For photographers building their first complete imaging systems, the 5mm tube represents an excellent companion to 12mm and 20mm tubes, providing fine control over critical spacing without excessive material or complexity. Its modest dimensions and straightforward utility make it an essential inventory component for photographers expanding beyond basic telescope-camera configurations.
Binorum Engineering Excellence
Each 5mm tube is precision-calibrated for exact optical length and thread integrity. Black anodized finishing and tight tolerances ensure reliable performance in intermediate-spacing applications.
Conclusion
The Binorum SuperStrong T2 5mm extension tube is indispensable for photographers building moderate-complexity systems requiring small but precise spacing adjustments. When standard tubes exceed your spacing needs and 3mm proves insufficient, the 5mm tube provides the exact dimensional solution.
