Hi Carl,
The Canuck is one very vibrating and noisy fabric and tube airplane (a C-85 with
a currently unbalanced prop), and I was very surprised that the camera image
didn't shake more. It does "swim" a bit in the video if you look closely when
the airframe meets the mount's resonance frequency. Because the aircraft is
tube&rag, mount is a combination of RAM parts:
http://www.gpscity.ca/ram-mount-steel-u-bolt-motorcycle-mount-base-ram-b-231u.html
http://www.gpscity.ca/ram-mount-long-arm-b-socket-ram-b-201u-c.html
http://www.gpscity.ca/ram-mount-camera-mount-mini-plate-rap-b-366u.html
+ the stock GoProHero2 mount.
I noticed that when I made the mount longer with another length and a 'joiner'
the resonant frequency changed as expected. I fabricated a 1 lb steel wieght
and tried it on the camera end of the mount in a hope that the resonant freq
would
decrease below idle, but I found i would need much more weight and stopped
using it.
The Hero2 doesn't advertise image stabilization, and when hand-held seems to b
e very jumpy, but on the (vibrating) airframe its pretty good as the vid showed.
Better than expected on my trail-ridden dual sport motorcycle too. The colours
are better than that video depicts, as that was a very grey/dark day here
in springtime Ottawa, Canada.
After reviewing many cameras, the Hero2 came out with the best quality, and I
have
been very happy with it.
Cheers,
Pete
On Aug 3, 2012, at 4:16 AM, "Carl Pattinson" <carl@flyers.freeserve.co.uk>
wrote:
>
> Hi Pete,
>
> The Youtube clip is really clear and steady (no vibration). How is the
> camera mounted onto the airframe.
>
> I had real problems with vibration from the airframe.
>
> The only way I managed to iron these out was to mount camera (it's a bullet
> camera) on the headset side but only problem is that every time I turn my
> head the field of view changes which doesn't make for good viewing.
>
> The camera is a VIO pov camera which in itself is excellent as the camera
> and control box are separate - you can see what the lens is seeing in real
> time.
>
> Just need to find a way of damping out the vibrations.
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of Peter Zutrauen
> Sent: 02 August 2012 15:03
> To: europa-list@matronics.com
> Subject: Re: Europa-List: Re: cameras and mounting
>
>
> Hi John,
>
> I'd be really interested in seeing some of your vids! They would be
> inspirational for my build. I'd be happy to pay you for a DVD or two
> :-)
>
> Since getting back into the air last November I've also been videoing my
> every flight (in a group-owned 1946 Fleet Canuck sadly - but it is
> a tailwheel and does have a stick :-) Taking vids started out as a
> way for my ailing father to go flying with me vicariously (which he enjoys
> immensely), but I also see the value in reviewing my flights and performance
> (or lack of it). Here's a short 1080i (one has to select the higher
> resolution) example I threw up on youtube from last
> winter: http://www.youtube.com/watch?v=ACiM2u0YTvw
>
> I find the GoPro2 to be a great little camera - and even in the noisy/shaky
> canuck, the vids come out clear except for some vibration through the
> resonance point. I attempted to smooth it out with by adding weight to the
> camera with mixed results. I am using the rubber-ball ram mount system
> (clamped to a cross bar behind my head) which obviously has some flex due to
> the rubber.
>
> I bought a couple of earbud-size mics and velcroed them into my A20 headset
> (Did I mention the Canuck is *noisy*?), to get some background engine
> noise/music/atc into the vid. I picked them up them from:
> http://www.soundprofessionals.com/cgi-bin/gold/item/SP-BMC-2
>
> The GoPro2 also takes great still photos. The resolution from even 1080i
> frame grabs is pretty darn good.
>
> Cheers,
> Pete
>
>
>
> On Thu, Aug 2, 2012 at 8:47 AM, John Wighton <john@wighton.net> wrote:
>>
>>
>> I have a GoPro mounted inside the cockpit attached to the roof centre bar
> just behind my head. A std sticky GoPro supplied pad adhered 100% to the
> surface. I use the invert function in the camera as it is mounted upside
> down.
>>
>> I have a second mount external in a similar position but as far fwd on the
> T bar (fits between the doors when they are both up). The sticky pad mount
> is almost impossible to remove, so beware.
>>
>> Interestingly the speed seem to reduce 7kts when the camera is on the
> outside.
>>
>> I try to film every flight and correlate the GPS tracks and film in a
> library. Its good to analyse your own performance, check speeds and record
> all the instruments. I discovered that l check the brakes (trigear finger
> brakes) 3 times during a t/o roll! I also found out l rock the wings a
> lot!
>>
>> There is no shake, rattle or shimmy with the GoPro - set to 720i
> resolution. The prop does not intrude in the picture.
>>
>> I will also try the suction mount on the wingtip soon, possibly with some
> wool tufts to show breakaway during stalls.
>>
>> Regards
>> John
>>
>> --------
>> John Wighton
>> Europa XS trigear G-IPOD
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=379853#379853
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
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