ricci2
 Second Officer
Flight distance : 61158 ft
France
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You know when you should put a project to bed? when its sorted? Well I think I can now do this with the X5, the last test today gave me the information I have been looking for.
I wanted to know what direction the sensor travels in to generate the worst rolling shutter, now I know how to produce rolling shutter if anybody wants it as a special effect!!!!!
I was looking to do vertical testing only where the craft was lifted to the sky and then the ground at the highest accelerations possible, I changed the expo on the M600 to be very aggressive and took the craft to the top of the shop (max ceiling DJI allow) then plummeted the beast to the ground, repeat until board and do it once for luck or the batteries expire, depending on your attention span.
Results: the fix allowed me to isolate the severely impacted sensor and so on the vibration fixed craft I managed to induced some rolling shutter with extrem vertical movement, the horizontal movement did not induce R/S so the answer was the sensor is susceptible to vertical load transits or delta change velocity movement. This also answered the question as to why the R/s was bad when the camera is pointed down to the ground and the craft travels in a horizontal direction, the sensor rotates 90 degrees and its vonrable Y, axis now becomes a virtual X, axis and that's how the R/s takes hold, in theory the camera in the horizontal should have the least R/S under movement but if you add any inclination below or above 180 degrees it induces a component of the Y, axis to be added and in my case that's what happened, rolling shutter increased as the craft was pitched in the vertical axis. Case closed I think.
Conclusion: do the mods to the balance the camera, locate the gimbal on the cog, and damp the top plate and that will reduce the effects of the R/S to a minimum, don't fly aggressively with the camera pointed to the ground ( diferent if taking stills as this is a snapshot in time, freeze frame.) don't use GSP if you are using a video pointing to the ground as it is very aggressive when it stops to take snapshots, 98% better with mods. Be realistic about the footage as you are hanging a camera in a floating fan in an unpredictable weather environment. Job Done.So far there have been only three people to acknowledge the rolling shutter on the X5, and IT, and myself have made huge improvements to our situation however if you have made any mods it could be good to get feedback.
Happy flying and a huge thank you to LT, and all who came together to fix this Non issue DJI.......
Ricci
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