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peterbkk

Member Since 25 May 2005
Offline Last Active Nov 25 2014 06:20 AM
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Posts I've Made

In Topic: Melibe colemani

25 November 2014 - 06:21 AM

Evolution gone nuts!

In Topic: GH4 - Nauticam Macro Lens/Port Thoughts

23 November 2014 - 06:47 AM

This might be a little off topic but there seems to be a lot of folks here who know a lot about the 4K capability of this camera.
I'm currently shooting HD video with a D7000 and getting some nice results when viewed on a large screen Sony Bravia TV. 
So my question is this.  If I moved into a GH4 setup, is there going to be a significant improvement with 4K video viewed on my current HDTV, or would I need to upgrade to an ultra HDTV as well?

This is one of those questions that everyone needs to answer for themselves.

Why did I jump from the perfectly adequate HD rig to the 4K GH4?

1. 4K is an unstoppable train. In a short period of time HD will look poor by comparison. just like SD does today. So, I thought I might as well jump onto the bandwagon early. Soon 4K TVs will be common. My 4K footage will have greater longevity. I can output HD today but still have the option to output a 4K version in the future.

2. 4K gives me more options in editing, even if the intended output is HD. I can zoom and crop in the editor. More pixels means more tolerance for color corrections.

3. 4K gives smoother gradations, important underwater when you have gradations from deep blue to bright surface light.

4. The GH4, with an external recorder like the Shogun, will soon deliver UHD 10bit 422 ProRes footage, great for editing quality video.

Regards
Peter

In Topic: GH4 - Nauticam Macro Lens/Port Thoughts

20 November 2014 - 06:28 PM

Peter

 

Have you recieved your Shogun yet? 

 

Atmos has said that Panasonic will be releasing a new firmware, for the GH4, in December. It will give  stop/start, trigger and time code over HDMI.

 

 

Not yet received the Shogun.  Looks like it'll be early December. 

 

In any case, I also need that GH4 firmware upgrade and the Nauticam Shogun housing to complete the package.  I'm expecting to get it underwater early in 2015.

 

Regards

Peter


In Topic: Results of my first commercial shoot with GH4

17 November 2014 - 05:49 AM

Nice Peter!
 
That 14-42mm looks like a winner, I have to say the closer shots (I presume with that lens) really show the quality of the GH4 (colours/clarity etc) - and fair play for getting steady video that close in! I have difficultly getting photos in focus, that close :D
You've made me bite the bullet and order the 14-42mm PZ and the port for it.

Rich


A Gorillapod Focus tripod helped with stability for macro shots.

The "pinpoint" focus option on the GH4 works well with macro. It zooms up the centre area then you can put the cross-hairs on the critical part of the subject. With AFL you can then recompose and shoot.

Rgds
Peter

In Topic: Results of my first commercial shoot with GH4

17 November 2014 - 02:54 AM

 

Please Peter, could you tell me a couple of things I'd like to know?
 
Do you use any kind of filter?. What circumstances? depth?. Mounted where and how?
 
Do you white balance?, does it work fine at any depth?.
 
What housing are you using?, How is the buoyancy?
 
Thanks

 

 

 

 

I don't use any filter on the lens or port.

 

If I am trying to balance the ambient light with the video lights, I use a blue, green or blue-green filter on the video lights.

 

I have preset 4 colour balance settings into the GH4 by doing a MWB in sunlight from 4 A4-size pieces of coloured paper which I printed from PhotoShop.

 

1. light blue for shallow tropical water

2. darker blue for deeper tropical water

3. light blue-green for shallow greenish water

4. darker blue-green for deeper, greener greenish water

 

Then I step between AWB, these 4 settings and a kelvin setting of 6500K (for shallow sunlight water).

 

Nauticam NA-GH4 housing.  Slightly negative buoyancy.  When shooting WA with the dome port I use a Styx float collar around the port to help balance.  When shooting Macro, I use a Gorillapod Focus tripod.

 

Regards

Peter