Hi everyone , this is my first post and want to say Hello :)
Now back to the case/problem.
Gimbal - very stiffy alu gimbal for large cameras AlexMos 32bit from DesireRC MOTORS: Yaw ipower 8017 12T Roll and pitch tmotor gb85-1 90T
Main problem is with smootnes of pitch movement - You can see it on screen as orange color. For the clarification on prtscr I've moved RC pitch chanel but same problem is with stabilisation.
What I do : -motor replacement didn't change anything -motor work same in hand (deatached from frame)
I have GB90 on yaw and it has a bit worse problem on medium speeds, but once again slow and fast panning with joystick is really smooth.
My current camera is GH4 with speed booster and canon 24-105 F4 lens. Stiffens of the gimbal is relative. If you have a really stiff gimbal you should be able to get much higher PID values. Filters might help on that. Here you can also see the PID values I use.
How is your camera installed? Firm camera installation is extremely important for good performance.
I think there is some problem on the current FW causing these vibrations at medium speed, maybe it is in combination with a high pole count motor, I hope there will be a solution to this, but your vibrations look really bad.