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peterbkk

Member Since 25 May 2005
Offline Last Active Apr 17 2015 03:12 AM
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Posts I've Made

In Topic: Potential solution to shaky video footage?

14 April 2015 - 07:40 AM

Here is an example of my bad handy work (top is unedited)
 


Pitch is the most difficult dimension to stablise with a "still" camera shooting video underwater. Camcorders and their longer housings are much better for pitch stability. There's no easy answer.

Maybe add another handle at the rear of your setup - right hand on housing handle, left hand on the rear handle.

Maybe add a more weight at the bottom and add buoyancy to the top - same weight, more mass.

Wrist strengthening exercises?

Practice!

Regards
Peter

In Topic: Potential solution to shaky video footage?

14 April 2015 - 01:36 AM

 

Even though I have my GH4 as neutral as possible (and thanks to your tips on this) it still suffers from some jittering underwater if I pan etc.

 

 

Is the housing well-balanced?  Jittering can come from muscles countering balance issues. 

 

The other tip for panning is to point your body towards the end point of the pan and then swing your arms / camera towards the start point.  Start the shot still for a few seconds then pan so that your arms are moving into their natural alignment with your body rather than away from it.  Your muscles relax during the pan rather than tighten up.

 

Regards

Peter


In Topic: Potential solution to shaky video footage?

13 April 2015 - 04:52 PM

 

I've sent a message to them, asking why the need for Mic input and Video output (I presume for time syncing, can't understand why the mic input thou). 

 

 

Maybe they are writing some inaudible (to humans) sync sounds onto the audio track that their NLE plug-in can read.


In Topic: Potential solution to shaky video footage?

13 April 2015 - 04:48 PM

I can see how something like this might help with surface footage shot on a small dive boat that's bouncing on waves.

 

But I can't think of any problem underwater that it's going to solve.  WA and MS footage doesn't have a stability problem because of the water dampening effect.  I doubt if its gyros will be sensitive enough to help stabilise macro footage.

 

Maybe it'd be useful if shooting The Passage at Raja Ampat or Shotgun at Komodo in a full-moon current...

 

If it really works well, some manufacturer will buy out the IP or replicate it and build it into a future model.  

 

I assume that, if successful, there will be plug-ins for the popular NLEs.

 

Regards

Peter


In Topic: Canon Cinema EOS XC10 4K Camera

08 April 2015 - 02:24 PM

Biggest downside thou is the lens - 27.3mm eqv. :(
 


With a screw-on Canon wide-adapter lens behind a dome port, it should be wide enough for UW use.

With a flat port and a flip diopter, it might do macro well.

Coupled with a Shogun recorder, this could be a quality portable UW video system.

I wouldn't rule it out, just yet.

Regards
Peter