Regarding the H3 and the T3, here are some differences T3 has that will improve your shooting:
Clean design, internal wiring: looks professional setup and avoiding wiring in shooting.
Built-in 12V BEC: you could use the battery from drone (12 - 52V) to power gimbal via Power port connection (more safety and stable power source).
CanLink is integrated in T3 which now supports not only DJI FC but also Pixhawk.
Up to now, Gremsy T3 is the first gimbal in the market combined with GH5 for smooth aerial footage without post stabilization.
The T1 and T3 are integrated using the same technologies. However, the T3 supports a higher maximum payload up to 3.75 lbs while T1 supports 1.5 lbs payload.
Furthermore, unlike the T1, the T3 has CAN port on Pan axis which gives it the ability to power extra devices such as Connex.
The maximum payload of the T3 is 1.7kg (3.75 lbs).
It currently supports cameras with a maximum depth of 100 mm (measured from the center of gravity), a maximum height of 120 mm, and a maximum width of 152 mm. The maximum payload of T3 is 1.7 kgs (3.75 lbs).
Gremsy T3 Camera Compatibility List (non-comprehensive list):
The Gremsy T3 package includes:
No, it does not. The T3 supports the external batteries from drone with 12 - 52V input power.
Gremsy T3 supports 2 types of operation: Normal and Inverted Operation.
Yes, you can switch from Circular Quick Release to Hyper Quick Release. Please use the ADAPTER HYPER QR TO CIRCULAR QR
No. The system battery, motors, and other electronic equipments are not waterproof.