The Jello Effect in Mojo and options for stabilising your Smartphone or GoPro

If you are a regular follower of the blog you’ll know I talk about the iPhone as a mobile journalism solution a lot, but I also occasionally blog about one of my other interests: UAV (Unmanned Aerial Vehicles) or “Drones” as some call them, though thats a title I loathe.

Anyway the two topics have a common thread and that thread is becoming quite a substantial crossover. UAVs like the DJI Phantom have the option of a Go Pro Stabiliser Gimbal called the ZenMuse H3-3D. What this device does is it corrects the position of the GoPro relative to the pitch/yaw/tilt of the UAV. Or in simple terms it keeps the GoPro steady while the UAV is moving and tilting around.

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The iPhone (particularly the older 4/4s) was extremely prone to rolling shutter and jitter-sometimes referred to as the “Jello Effect”. If you’ve tried walking behind a fast moving subject you may often notice the extreme shake in the picture and if you Pan (turn left or right) quickly all the vertical lines will bend very noticeably. During our Mojo courses I strongly recommend that trainees get into the habit of using either a tripod or monopod but thats not always practical. This is where the UAV Gimbal Stabiliser technology is now starting to have an impact on smartphones and GoPro.

A growing number of manufacturers are using the same Inertial Monitoring Unit Chip (IMUs) as those used in UAVS to create handheld brushless motor gimbals for Smartphones and GoPro. I’ve been trying to decide which one to buy for some time so I thought I’d share the ones I’ve been considering in case you are in the market for one also.

This is a THINGLINK image grab – If you click it you will be redirected to the Thinglink site where you can click on each image and go to the manufacturers website to get more information and pricing.

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Its probably worth mentioning that these handheld units are baby versions of the much bigger and more expensive Stabilisers like the pioneering  FreeFlyCinema Movi M5 | M10

and many of the others who have subsequently created their own versions.

If you want to see what can be achieved with these handheld stabilisers then checkout this Playlist

3D Printed monitor mount for @DJIGlobal Phantom2 controller

UPDATE: 5th August 2014

Rave Creative (makers of the 3D printed Mount below) have launched a dedicated website for the mount-Click Image to visit

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Over the weekend I took my DJI Phantom2 Quadcopter out for a quick flight test. I recently got a pair of Zeiss Cinemizer HD Glasses and wanted to test them in parallel with my current set-up with a SmallHD DP4 field monitor.



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I have the DJI AVL58 Wireless FPV (First Person View) transmitter installed (€250) on the Phantom2 but its not HD.

DJI do sell a 1080p HD FPV system called the LIGHTBRIDGE but it costs around €1,200 so its out of my price range given I’m just an enthusiast and not a professional user. Though today I saw a tweet from Philip Bloom which referred to the Teradek Clip which looks like it might be a good alternative to the Lightbridge-the only downside is its aimed to be used with an iOS or Android receiver-if you enable the RTMP open stream (with the extra license cost) it ends up equivalent to the Lightbridge.

The other thing that might be of interest is the custom 3D printed monitor mount I’m using with my Phanotm Controller…


This is a 3d printed Monitor mounting bracket designed especially for the DJI Phantom controller. Its designed by Phil Ravenshear from and printed using their Makerbot 3D printer. If you are interested in one just drop Phil an email for a quote. Its very sturdy when fitted to the controller and I much prefer it to the carbon fibre-frame options you see online.


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