L-Bracket Custom Designed for Sony A7r Mark IV, A9 Mark II, Arca-Type
The L- Bracket has been machined from solid Aluminium T6061 block and black anodized for scratch resistant finish. The main feature of this L-Bracket is its two piece design; the vertical piece of the L-Bracket can be extended to allow cable connection (cable connections are also possible without extending)

Features:
Two piece design; the vertical piece allows for the use of just the base plate
Two safety stops in vertical and horizontal surfaces
Slide out mechanism, with hardened steel rods allow extending of the vertical plate for ease of use with cables or finding the center point of the image.
Compatible with Arca-Swiss style tripod heads
Easy battery access
Built in Magnetic Allen Wrench Storage
Strap Loop
1/4"-20 Threads (Side & Top) for Cold Shoe , Strap etc accessories (with additional holes for Anti-Rotation, A14 Pins Needed)
Machined aircraft aluminum construction using CNC precision machines
Unobstructed LCD access
Specifications:

Height:  3.35 Inches (85 mm) 
Width:  4.25 Inches (108 mm) 
Depth:  1.50 Inches (39 mm)
Rotation  90°
Weight:  6.1 oz - 174 grams
Mount Thread: 1/4-20 with 5/32 inch Hex Screw
Patent Pending
Arca Swiss Type Dovetail
What's Included:

L-Bracket (Bottom Plate: PBSA73, Vertical Plate: PLSA73)
Removable strap loop
Allen wrench