GoPro Camera Mounts

I did switch it to 720 @ 60fps but counter to my expectation the image seemed less smooth?

now we can have some fun...

so the shake is less? now can I ask what device are you playing the footage back on?

LCD, CRT, Plasma, laptop? and what refresh rate that is running at?

as these need to be in sync.

:thumb2
 
now we can have some fun...

so the shake is less? now can I ask what device are you playing the footage back on?

LCD, CRT, Plasma, laptop? and what refresh rate that is running at?

as these need to be in sync.

:thumb2

I do appreciate the assistance.

Watching on my laptop with a 60p Hz refresh whatever that means
 
fps = frames per second
refresh rate (Hz or cycles) = number of times the computer screen flickers per second

some screen refresh rates are 85Hz.... or anything from 40Hz up to and more than 400Hz

imagine your looking through two spinning bicycle wheels which are turning at different rates and the spokes would set up a flicker pattern.... that's what your trying to avoid

dependant on what your eye can see and process.... sadly human being are not all the same and some people can detect a higher frame rate than others...:thumb2

there are as I can tell the following number of fixed issues and a number of variables. What you need to establish is a set of measured results.. to exploit what you have in the best possible way... then I would use software such as adobe or avid tracking/ image stabliser to reduce the flicker, and after effects for the artifacts and smaller technical issues. If you have the time and can be bothered, if paramount spend millions on a film and disney hundred's of thousands on features in theme parks are you ever going to be able to compete with a grands worth of gear and a finite amount of time and other resources?

fixed issues (we know this as a value x )

camera frame rate
computer refresh rate

both at 60 (something be it frames of cycles) per second

variables to be determined (this we can't be certain of so it's Y)

speed (bike, engine) which will give you two atleast sets of forces

road surface

lighting

temperature

we need to establish a point at which they intersect and are acceptable to you.... (which may not be acceptable to anyone else)

hope that's some help I'll post a image of my Manfrotto Ram Hybrid clamp as a comparison....

But I'll do that later as I've got to go get some kit back this morning...:thumb2
 
I had 8 camera's on this bike, admittedly it's not the bike you have but we only had 20 mins to get enough footage so I told our rider to weave in and out of the other riders.

the footage for this will be on BBC3 I think later this year... well they'll let me know...

the mount as it's got a 2inch contact print and is nylon lined reduces the vibs enough in my opinion....

I prefer to shoot scenes which is more controlled rather than capture hours and hours and hope to have what I need in the tin....

:thumb2
 

Attachments

  • yammy gopro.jpg
    yammy gopro.jpg
    116.6 KB · Views: 152
I went for a very short ride earlier and it appears as though the wavy issues have gone but the picture is definitely juddering (I'm not as bothered about vibration as much as wavy videos) and not smooth.

When I can work out how to cut and compress the video's I'll pop one on to Youtube - 15 mins of me riding around Enfield is, at best, boring!

What was the program name that is going to show your footage?
 
it was a thing for Danny John Jules and Steve Keys...

I'll see if there's a trailer for it yet

this was the old one

<iframe width="560" height="315" src="http://www.youtube.com/embed/vE_vTIgPMp0" frameborder="0" allowfullscreen></iframe>

this was most of mine... but I was there as a consultant for audio and equipment and not being paid to shoot it... so there are hints of me in this....!

<iframe width="560" height="315" src="http://www.youtube.com/embed/-ChEh93e7dQ" frameborder="0" allowfullscreen></iframe>

This was more of the same, I was shown draft one and just said "no!", got someone to rewrite it overnight and then we came up with a manageable shot list, kit list and list of requirements. In the time and budget we had left... which was around a £100...

all of that should be put together into a 4 episode show for BBC3 but I'm not involved with that I elected to take the money for my part and leave them to it. I've made a few sell through DVD's, got another project with bikes to finish, and a doco about some other stuff that could become a feature film and I'm working on a couple of music things.



<iframe width="560" height="315" src="http://www.youtube.com/embed/msuauaLPi_Y" frameborder="0" allowfullscreen></iframe>
 
Not sure if this has been mentioned as I skimmed through the thread.

I've recently sold on my front and rear set up for a cheap 2nd hand HD camera.
Cut to the point.

I have the authority BMW mounts under the mirrors of my 12RT, these have some FF50 spots on them and a modified bracket to which I fit the bullet cams. These are fitted solidly, no rubber or damping material. The non HD bullet cameras I used didn't exhibit the wobble affect however...

When I first fitted the HD camera unit I got the wobble or "jello" affect, mostly at low revs and definatly at tickover. Not so bad at higher revs.
Click me to see vid

What improved it a lot was beefing up the plate I had the camera mounted on, I've not uploaded a video shot with the beefier bracket yet but it's definatly far better.
hth
\v/
 
GoPro on the helmet,,or in the front of the RT

<iframe width="560" height="315" src="http://www.youtube.com/embed/HPzHzq786dg" frameborder="0" allowfullscreen></iframe>
 
That rider has nadgers far to big for his own good.
Nice riding keeping it upright.
\v/
 
Use the sticky pads... They're damn good. Anther issue i had with mine was the camera rattling inside the case. Solved by folding up a bit of paper and wedging it between the camera and case....
 
Thanks for all your input.

I'm beginning to wonder if I am expecting too much.

https://www.youtube.com/watch?v=2e-zQVZRzOU

Shot at 720 @ 60fps

The wavyness has gone but the stuttering image is the issue now. I'm not too bothered about the vibes when idling.

The stuttering is more pronounced on the laptop than You Tube.
 
really bright sunlight the camera won't be wide open..it'll sharpen up the image a little... if your lucky...

youtube endcode to flash, this helps as..... and it's really boring so I won't explain.

you have most of it, now it's a matter of fine tuning it till you get to a point that is more acceptable...:thumb2

I believe my work here is done....:hide
 
Like this? Mount on the end of the handlebar. I made the new handlebar mount from a piece of alloy rod cut to the same size as the original end weight but parallel not tapered. The other bits are RAM U clamp, long mount and camera mount.
It doesn't shake about. I can operate the camera whilst riding. I can see the red blinking light in the rear view mirror. I can even rotate the camera anticlockwise by 90 degrees to video drivers on the phone....

What I CAN'T do is play the resulting yards of video successfully on my PC (VMC player). The sound and video seem to go at different speeds.

Rgds Dave
 

Attachments

  • image.jpg
    image.jpg
    86.3 KB · Views: 114
Video looks pretty stable, considering the set up although rougher roads might reveal something. Could any stuttering be caused by a slow or dodgy memory card?

\v/
 
I couldn't see any stuttering, just a fast shutter & frame rate effect. Looked good.
 
i use a drift hd and i am really happy with the results and thats on a GSA using a ram mount, it has a remote control and a screen so i can see when its recording which is why i went for it against the go pro

you can see some of my videos as part of the national escort group in the london surrey cycle classic

http://www.youtube.com/channel/UCvpj284BW8RzTp9zJOxDEhQ

would welcome feed back oh and i havn't sorted out the music side of it yet

thanks
 


Back
Top Bottom