SmallRig Top Plate for Blackmagic Ursa Mini/Mini Pro 1958 is specially designed for Blackmagic Ursa Mini/Ursa Mini Pro. Original 3/8’’ screws are used to lock the EVF and top plate tight. EVF rail track matches original EVF and you can slide the EVF up to 50mm. ARRI locating holes could attach ARRI Accessory Mount, like SmallRig 15mm Clamp with ARRI Accessory Mount 3/8’’-16 Hole 2001. The top of camera could be locked in 1/4’’ threaded holes via three 1/4’’ screws. 1/4’’-20 threaded holes could attach SmallRig Top Handle for Blackmagic URSA Mini/ Mini PRO 2000. The hollow slot is designed for weight reduction and sloping design enables EVF to fit the top plate perfectly.Key Features:1. EVF rail track included to match original EVF2. Threaded holes to attach accessories 3. Hollow slot is designed for weight reduction4. Sloping design enables EVF to fit the top plate perfectlyCompatibility:Blackmagic Ursa Mini/Ursa Mini ProPackage Includes:1 x Top Plate3 x 1/4 Threaded Hole1 x Hex SpannerProduct Dimensions: 109x 88x 26mmNet Weight: 165gPackage Dimensions: 135 x 100 x50mmMaterial(s): Aluminum Alloy