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Nikon BR-4 Ring (Reversed Lens Aperture Opening Adapter)

KEH Model# 216616

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* Item pictured for illustrative purposes only, actual item not pictured. See 'Notes' next to grade for included items.

Nikon BR-4 Ring (Reversed Lens Aperture Opening Adapter) Description


Nikon BR-4 Reverse Ring allows automatic aperture diaphragm control with PB-4 and PB-5 bellows units when combined with AR-4, AR-7, and AR-10 double cable releases. 

KEH Specifications

  • Function: Enables Nikkor lens auto-diaphragm control with AR-4,/7/10 cable release
  • Compatibility: PB-4 and PB-5 bellows
  • Note: Use of step-down rings can cause vignetting
  • Dimensions: 1" x 1"


General information

Brand Name Nikon