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Old 18-04-2010, 10:31 PM   #1
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Ride on board a 21 SportCat with GoPro Wide Angle Camera

A video shot last weekend with a GoPro wide angle motorsports camera.
Video was taken on Lough Corrib in Galway.

Not exactly sure what happened with the video distorting like it did but you get the idea!

Great weather for the entire weekend...

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Old 19-04-2010, 06:56 AM   #2
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Boat flex's a lot dunnit! ..quite scarey.

What was the top speed?

I guess the GoPro doesn't like vibration, you'll have to make a soft mount for it.
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Old 19-04-2010, 10:49 AM   #3
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Top speed was 87 on an iPhone GPS at 93ish on the clock, saw 100 on the clock later that evening when the wind and chop picked up.

Not sure what caused the vid distortion, maybe vibration because it does stop when we back off a little. Thought it might have been temperature deferances, the lens did fog up after about 10 mins of hard running.

You can get anti fog inserts for the case, might email them and ask what the bending is! If it can be stopped but I've seen other boat movies on youtube with a similar distortion. Just not as bad.
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Old 19-04-2010, 01:19 PM   #4
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Hi Alan - as you know we had one of these cameras (the HD version) until recently (when it ended up being a contribution to Neptune!!). Can you remember what type of mount was used - was it suction, or a proper stuck-down mount (with peel-away tape)?
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Old 19-04-2010, 03:09 PM   #5
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blimp, it was the suction cup mount we used. but we tied it on with a piece of rope to avoid a repeat of yours!
held solid up to 95 mph which surprised me
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Old 19-04-2010, 05:26 PM   #6
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Ok, that might explain things a little. The suction cup is going to vibrate a good bit more, especially at speed, than a proper mount.

If you take a look at the sample footage below and go to Formula Car Racing you'll see he's holding a clean picture at, I'm guessing, speeds over 100mph.
http://www.goprocamera.com/hdheropreview/
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Old 19-04-2010, 07:42 PM   #7
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what engine is that on the cat?
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Old 19-04-2010, 08:28 PM   #8
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what engine is that on the cat?
It's a Merc 225 Promax on a 15" leg


Aidan, yeah was looking at those vids but dont think vibrations in any car will match a boat especially with solid engine mounts.

Could also be to do with where it was mounted. Right in the centre of the foredeck, this area would vibrate more than other smaller panels.

Try it next time mounted on the side deck.

You get another camera yet? Was your old HD a wide or standard lens?
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Old 19-04-2010, 09:35 PM   #9
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Realy nice vid!

Lovely landscape! Is that your boating area or not?

Looks like some nice wtaer for the stream
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Old 19-04-2010, 09:57 PM   #10
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Realy nice vid!

Lovely landscape! Is that your boating area or not?

Looks like some nice wtaer for the stream

No it's not my usual boating area, I had never been there before.
Good water for the Hydrostream alright.
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Old 20-04-2010, 09:02 AM   #11
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Alan - nope, haven't replaced it just yet (did send them an email recently trying a blag a discount for a replacement, so fingers crossed there!!). The HD one we had contained a kind of slight fish-eye lens (as I think they all do), but there were a number of different settings you could adjust depending on what kind of end result you were looking for.
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Old 20-04-2010, 10:24 AM   #12
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Hero Mounting

Quote:
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blimp, it was the suction cup mount we used. but we tied it on with a piece of rope to avoid a repeat of yours!
held solid up to 95 mph which surprised me
I mounted mine using the clamp arround the Ski pole put could never seem to tighten the camera to mount bracket screw tight enough to stop it dropping down when the boat landed-even using a screw driver on it so possibley too solid a mount is not the way to go,I used a stick on mount on my helmet but drilled a small hole in the camera case and likewise in a vent on the melmet and put small cable ties to secure it in the event of the stick on pad coming off,so far the stick on mount has stayed put-I hope this helps
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Old 22-04-2010, 01:08 AM   #13
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Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
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Nic, did your footage ever distort like the vid avove?

Just watching the vid again earlier I was thinking, could it be harmonics/ natural frequency?
Seems that it only distorts above about 6k rpm. If you see right at takeoff when the prop blows out it distorts. And as soon as we come off the power on a run it stops, then starts again when we get back in it.

Have you got any footage from your cam Nic?
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Old 22-04-2010, 07:56 AM   #14
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Here's some HD from a RIB http://boatmad.com/forum/showthread....841#post179841
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