Monday 8 July 2019

Mounting FeiyuTech Gimbal + GoPro to Backpack

One area of video production I have not yet explored is POV filming, where - for example - I attach a GoPro to myself in order to give my audience a simulated 'first person' view of what I am seeing and experiencing (er, that sounds a bit dodgy - but it's not, honest).
GoPro Head Mount
The head mount is a cheap and cheerful way to get 'eye level' perspective
footage of what you are seeing. It has it's uses, as long as you don't mind
looking a bit silly (plus it's a bit wobbly)...
The reason I would find this useful is because I have an interest in filming my museum visits or documenting holiday activities from my Point of View. It's a very common filming technique and you can see example all over YouTube and it's all the more common these days because of the popularity of small, wearable action cameras like the GoPro. Helpfully, there are actually a good number of specialised mounts that allow you to attach a GoPro to your body to get POV footage...

SP Gadgets Mouth Mount for GoPro Cameras
LOL... Probably the most niche and extreme POV GoPro mount! The  SP
Gadgets Mouth Mount, for that 'see what I see' footage! Er, no thanks. This

mount was specifically designed with swimmers in mind, where there is no
practical other place to mount a camera!
Basically, I'd like my audience to see what I am seeing so that they get a slightly more immersive experience and feel that they are visiting the places that I visit. This is usually achieved by mounting the camera either close to the head so they get the 'wearer's eye view' or by mounting the camera on the back so that the audience gets an 'over the shoulder' view.

GoPro 'Over-the-shoulder' Mount
A GoPro 'Over-the-shoulder' mount. This on's a bit over the top...Get it? :)
If you just want to mount your GoPro this is a pretty straight forward process as a large number of mounts are available off-the-shelf to allow you to do this...BUT (there's always a 'but' when I do things)...I would like to negate some of the inherent camera shake that goes with wearing a camera by attaching the camera mounted on my FeiyuTech G4 gimbal! Not so many mounts available for this, in fact I have only found one - the GoPro Karma Mounting Ring (which, as the name implies, isn't actually for the FeiyuTech, but rather the Karma gimbal, but it fits).

...However...This ring mount is over £30 (yeah, for a small plastic ring mount - and that's supposing you can find it) so I did a search round YouTube for a cheaper DIY option and bingo...



Now, the above movie shows the gimbal mount attaching to a chest harness, but I want my gimbal/GoPro combo to attach to a backpack shoulder strap instead (giving that head-view feel). Luckily, there are several specific mounts available to do that; I went for the STUNTMAN Pack Mount - Shoulder Strap Mount for Action Cameras...

GoPro Backpack Mount

So, now I have both the backpack mount AND a way to attach my camera rig to the mount. Sorted.

Making my DIY Gimbal Rig
Following the instructions given in the video I've included above I proceed to modify my GoPro bar mount. These are dead cheap and I think came free with my original GoPro purchase anyway, so no great loss (I've never actually used it before)...

Step One - Modify the GoPro Bar Mount
The GoPro Handlebar Mount does exactly what you might expect, it allows you to attach a GoPro to the handlebar of a bike or any other horizontal bar for that matter. But in this case we want to reverse it's use, we want to use it to hold the gimbal handle and attach the mount to the backpack mount. This raises a little problem related to the GoPro attachment system...

GoPro 'Male' & 'Female' Attachment Points
GoPro attachment prongs.
GoPro mounts use little prongs to interlock with each other, these prongs come in two type which I will can 'male' and 'female' for ease of identification. The 'male' attachment point has two prongs and they insert into the 'female' three prong arrangement, you then screw the attachment screws through the hole in all these prongs to tighten the joint. Following so far? :)

Well, if we reverse the use of the bar mount we would be trying to attach a 'female' point to another 'female' point which won't work because of the integrated locking nut. So, we have to remove one of the prongs (the one holding the nut) so that it becomes a 'male' attachment point!

Result...My bar mount with a  sex change! ;)

Making a GoPro POV mount - Part 1

Step Two - Attach the Gimbal to the Bar Mount
First things first, I had to find a GoPro mount for a backpack shoulder strap, as mentioned above - after a spot of research - I went for the Stuntman Pack Mount. At £30 it's not the cheapest but it was highly recommended and especially rated for it's sturdiness...

Stuntman Pack Mount or GoPro

The mount attached to my Lowepro Tahoe BP150 backpack strap very easily and I was very please with how secure the mount seemed to be (the velcro fixing straps seem to have a non-slip rubber material which grips the strap nicely). I mounted the pack mount on the left strap as I am right handed so thought this would mean that the camera would not be jostled as much...

Making a GoPro POV mount - Part 2

There is plenty of articulation so I can adjust how close of far, high or low, the camera and gimbal is on my chest and - of course - I also have the option to mount the GoPro without the gimbal to make the whole thing more compact if I wish.

Having tested the attachment of the bar mount to the pack mount it's time to try fitting the gimbal to my contraption...

Making a GoPro POV mount - Part 3

It fitted nicely and was tight and secure...I like it when a plan comes together! I guess the only downside is that you have to unscrew the whole thing if you then want to use the gimbal as normal (would have been great to have had some sort of 'quick mount' system which unclipped quickly, but you can't have everything).

So, all that's left is for me to reattach the bar mount and gimbal back on the backpack and put the backpack on to see how comfortable it is to wear with the extra weight on the left hand strap...

Gimbal & GoPro on Backpack Mount

...OK, not the best photo, but I'm not used to trying to take a selfie! :)

Right away, I noticed that the gimbal want to try and point slightly to the right, so I will have to turn it slightly to the left in the mount to compensate. The tilt doesn't matter - of course- because the gimbal will self level itself.

I will have to experiment with the best mode to set the gimbal to in this arrangement, whether that be 'fixed forward' looking or 'follow me' tracking, etc. But that will be the next stage in this experiment, a live test.

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