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Cognisys Quick Release Clamp


This Arca compatible quick release clamp is designed to give you a quick and easy method for attaching your camera to the StackShot Macro Rail, Rotary Tables and the Slider. The clamp is constructed from Anodized T-6061 aluminum and stainless steel hardware. This clamp also features a captive knob to prevent loss in the field. The knob is a large 1" diameter for easy grip. The clamp holes are designed to be mounted in horizontal or perpendicular to the Cognisys Arca Adapter Plate.

1- Arca Quick Release Clamp
1 - 1/4-20 x 5/8 - Flat head hex bolt
2 - #10-24 x 1/2 - Flat head hex bolts
2- Allen Keys (1/8" and 5/32")

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Arca Adapter Plate

Cognisys Quick Release Clamp

The Cognisys Quick Release Clamp was designed to fit on the StackShot Arca Adapter plate to securely hold your camera to the StackShot Macro Rail. The clamp is Arca Swiss compatible and it will also mount directly to our rotary tables using one of the rotary table spacer kits. This clamp can be mounted in both perpendicular and parallel directions on the macro rail (see below for examples).

The Quick Release Clamp features all aluminum and Stainless Steel construction, all aluminum parts are black anodized. The knob is a large 1" knurled knob for easy grip and secure tightening. The knob is captive to prevent loss of any parts in the field.

For an image of the complete mounting system for StackShot visit the Arca Adapter Plate page.

Quick Release Clamp Orientation

The Quick Release Clamp can be mounted to the Arca Adapter Plate either perpendicular to or parallel to the camera. This allows mounting of the camera to the StackShot Rail either by the lens foot (left image a Wimberley P-20) or by the camera (right image a Wimberley P-5 plate). The bolts to attach the clamp can be removed directly from the top - no need to remove the Arca Adapter Plate from the StackShot Rail.

Clamp mounts either perpendicular or parrallel to the camera
Quick Release Clamp with Hole Sizes Quick Release Clamp mounted to StackShot  

Bottom View

Quick Release Clamp Bottom View

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Specifications and Dimensions

  • Outside Hole Spacing - 45 mm (1.77 in)
  • Outside Hole size - 1/4-20 threaded or #10-24 Thru
  • Center Hole Size - 3/8-16 threaded or 1/4-20 Thru
  • Knob Diameter - 25 mm (1 in)
  • Clamp length - 80 mm (3.15 in)
  • Weight - 150 g (5.4 oz)
  • Width: 100 mm (3.9 in) - including knob

Works with all Arca-Swiss compatible lens and camera plates



Quick Release Clamp Accessories: