B150-B: Macro focusing rail

SKU: B150-B
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The Really Right Stuff B150-B macro focusing rail is the prime companion for avid macro shooters, offering single-axis fine focus adjustment.
  • Precise, single-axis, fore-aft fine focus; 1.25mm of travel per knob revolution
  • Designed to mate seamlessly with our quick release systems
  • Compact
  • Bottom rail comprises a Really Right Stuff-compatible dovetail that mates with your ballhead clamp
  • Stage integrates our patented lever clamp that connects directly to your Really Right Stuff camera plate
    1. B150-B Macro focusing rail
    2. (2) Safety stop screws
    3. M2.5 hex key for adjusting safety stop screw(s)
    4. Large neoprene OpTech pouch with locking belt clip
    5. User's Guide
  • Length: 5.9" / 150mm
  • Width: 2.8" / 71mm
  • Height: 1.35" / 34mm
  • Weight: 15.2 oz / 428g
  • Lead Screw Adjustment Range: 4" / 103mm
  • Total Adjustment Range: 9" / 231mm
  • Stage Travel per Revolution of Lead Screw: 0.05" / 1.25mm
  • Lead Screw Thread Pitch: M8 x 1.25mm
  • Load Capacity: 15 lb (varies with angle of load)
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