somada141
lvl.1
Australia
Offline
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Hi all,
I recently bought the Ronin-S to use with my Sony A7 III (https://www.sony.com.au/electronics/interchangeable-lens-cameras/ilce-7m3) with my Sony FE 24-70mm f2.8 (https://www.sony.com.au/electronics/camera-lenses/sel2470gm). Per the official compatibility list (https://dl.djicdn.com/downloads/Ronin-S/20190314/Ronin_S_Camera_Compatibility_List_en.pdf) that combination of camera and lens is supported by the Ronin-S. In addition, the camera weighs at 650g when the battery and SD-card are in while the lens weighs 886g for a grand-total of 1536g. I also bought and am using the MCC-Multi cable (https://store.dji.com/product/ronin-s-camera-control-cable-multi) but I'm not sure what its weight is. All in all this combination is still well under the 3.6kg the Ronin-S should be able to cope with.
I use the above setup with the riser and mounting plate and lens-support as the lens' focal-length ring gets 'stuck' to the mounting plate if I don't use the riser (as in I can't turn it).
Having gone over both the manual and about 2 dozen videos on balancing I'm pretty confident I balance it correctly. The balance test out of the Ronin app declares the balancing excellent across all three factors. After each balancing I perform the auto-tune to ensure the setup is as balanced as can be.
However, I'm facing two issues:
- While holding the Ronin in its upright position and move my arm left or right past a 45deg angle the roll motor 'gives out' and the whole setup 'falls'. When moving my arm left too much the whole setup may actually turn upside down at times. A video showing said behaviour can be seen under https://youtu.be/ZMW_h-uFB70
- When configuring the Ronin for infinite-roll (following the instructions under videos like https://youtu.be/hVnVAWPhhWA?t=66 and https://youtu.be/b3meiAcXW-0?t=370) the motor fails to spin the camera and gives up halfway. A video showing said behaviour can be seen under https://youtu.be/NAMGhXBe2L0
Given that I'm perplexed by this behaviour I've also uploaded photos of the balance settings in case something is obviously off about my setup or balancing. They can be found under https://photos.app.goo.gl/zBFhCW9V6aebJN4n9
I've also tried the above without the camera riser despite it 'blocking' my focal length ring but the result was exactly the same on both issues.
Is there something fundamentally wrong with my setup? Am I misreading the compatibility list? Is it possible that my Ronin is damaged and can't cope with the weight?
Any suggestions/info are appreciated.
Thanks!
Adam
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