It currently supports cameras with a maximum depth of 135 mm (measured from the center of gravity), a maximum height of 205 mm, and a maximum width of 180 mm. The maximum payload of H7 is 3.18 kgs (7 lbs).
Gremsy H7 Camera Compatibility List for your reference (non-comprehensive list):
- RED Series: RED Epic, RED Scarlet, RED Weapon, RED Helium, RED Raven (*limited lenses)
- ARRI Alexa Mini
- Canon 1Dc, C300 (mk I - II) (*remove viewfinder + add counter weight if using light lenses.)
- BlackMagic Pocket, BlackMagic Micro Cinema Camera,Blackmagic Cinema 4K
- Canon 5D Mk I, II, III
- Nikon D810, D800, D500, D5
- Sony A7S (mk I - II), A7r (mk I - II)
- Sony A6000, A6300, A6500
- Panasonic GH3, GH4, GH5