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Pete L

Member Since 22 Jan 2010
Offline Last Active Apr 08 2016 01:27 AM
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#372364 Underwater Colour Correction With The Sony AX100

Posted by Pete L on 08 April 2016 - 12:26 AM

I have used several DSLR type systems for video work, including 7D, 5D & GH4 and my biggest issue was always that I was never 100% confident that my footage was in focus and when someone is paying you to get the shot and you are always thinking in the back of your mind, I hope that is in focus, well it is not a good feeling.

 

I'm certainly not going to bash DSLR users as there are many members here that are getting great results from them.

For me though, having distance markers on the screen means I can lock my focus at 0.3 at full wide zoom and I know 100% of the time that the shot is in focus.

The other features I like of a video system are the ND filters, which I couldn't live without now, a zoom lens, the ability to manually focus and swap between manual and auto focus when needed, focus peaking (which I use mainly for macro work and like ND filters, peaking is a godsend for macro work), the ease of getting into the WB menu and having one push WB and decent auto focus.

 

The things I like specifically about the AX100 would be the image quality first and foremost, the larger sensor means I can finally pull focus underwater and help to separate subjects from backgrounds, the XAVC-s codec is fantastic for post work and the Gates Housing is well balanced, the main functions are well placed for easy access and the extra items like the top handle and tripod make it a great system to use.

 

I can't see myself going back to an SLR style setup to shoot video permanently.

The GH4 was a great camera and I see people adding all sorts of extra equipment onto it to make it "better" but the size is growing and so is the cost.

Price up the cost of an SLR system versus a video based system, in most cases it is cheaper to setup a video system and I certainly understand that not everybody wants to be locked into a video system and that is fine but for me, it is a dedicated video system all the way.

Whether that be Sony, Canon or whoever else comes along in the future.


Oh and by the way, my understanding is that Sony will not be releasing an updated version of the AX100 this year.
 




#372363 Underwater Colour Correction With The Sony AX100

Posted by Pete L on 08 April 2016 - 12:05 AM

Pete,

 

Thanks!

 

I didn't get the magenta filter until after I returned, but think it may have helped - I'll try it next time.

 

Here's a minute (however bad) of what I did get - no filter, one-push and the red tape spot trick you suggested: https://youtu.be/EZPhf1wku3o

 

In the first clip my wife is trying to get the manatee to stay so she could back up - it was a bit too close to let her focus.

 

Tom

 

Tom, the beauty of the white slate with red stickers is that you can zoom in and out and that will adjust how much red is added to the image and will dramatically change the white balance.




#372226 Underwater Colour Correction With The Sony AX100

Posted by Pete L on 05 April 2016 - 01:25 AM

Pete, what cameras are you using now? I thought you were using a GH4. Have you moved on to an AX100 or are you using both? Or...?

 

I sold the GH4 a long time ago Nick.
I am now with the AX100 and loving it.


Pete, what cameras are you using now? I thought you were using a GH4. Have you moved on to an AX100 or are you using both? Or...?




#353321 FS-Panasonic GH4 Body & Nauticam GH3 Housing

Posted by Pete L on 11 October 2014 - 02:59 AM

Sold.




#349514 Upcoming Panasonic GH-4K

Posted by Pete L on 27 June 2014 - 10:33 PM

Simon, if you get the 7-14mm lens, make sure you black out the silver writing on the front of the lens as it will reflect in the 6inch dome.




#348685 GH4 footage and rig pic

Posted by Pete L on 04 June 2014 - 11:18 PM

Yeah Nick, no manual focus on the 12-50 or the 7-14.

I just used auto focus & then switched in to manual focus to lock it & stop it from hunting.

There is a switch on the back of the GH4 to flick between manual & auto focus.

Focus peaking only works in manual focus too.

I would kill to have manual focus for both of these lenses.

I hope as the Gh4 becomes more popular then there will be manual focus options available to us.

It is really my only serious complaint so far.




#348568 Upcoming Panasonic GH-4K

Posted by Pete L on 02 June 2014 - 11:51 PM

Nick, with the couple of dives that I have used the 12-50mm lens on the GH4, I have not seen the same amount of softness in the corners at full wide.

Whilst I can't remember the numbers off hand, the GH4 in UHD mode has a different crop factor compared to 1080, something like 2x for 1080 & 2.3x for UHD plus it reads the sensor differently in the two modes so I do think the 12-50mm is better on the GH4 but sydneys conditions this last week have been not very good for wide angle shooting so it may be a little while before I can do some decent tests with this lens in the 12mm region.

Cheers Pete.




#348164 Upcoming Panasonic GH-4K

Posted by Pete L on 25 May 2014 - 11:29 PM

https://www.youtube.com/watch?v=QWgUv9Vtp1c&feature=youtu.be

A little bit of footage from my first outing yesterday.




#347971 GH4 4K setting

Posted by Pete L on 20 May 2014 - 10:15 PM

No worries nick, the lens & port are sitting here in front of me waiting for my camera to arrive hopefully tomorrow :)

Pencilled in Saturday arvo for it's maiden voyage with the 12-50 so stay tuned :)




#339153 Alaska macro shot

Posted by Pete L on 07 November 2013 - 12:21 PM

Very nice.


#339121 SmallHD DP4 vs Atomos Ninja 2 in Nauticam housings

Posted by Pete L on 06 November 2013 - 11:11 PM

Thanks for the replies guys.

Nick, I did read that the XA20 does output 8bit 422 over HDMI which is great.

I would only be recording 25fps so the 50/60p is no concern to me anyway.

 

Jon, yep I was thinking the extra colour space & higher bitrate would be beneficial if I can sell some of my footage to TV or use for Blu Ray etc where someone may specifically want 422 colour etc, it could give me an advantage there.

I understand the footage will look the same as the in camera footage but having the extra colour space/bitrate could help me sell footage?

 

I will be using a Ninja for some topside work in the future with the XA20 so it makes sense to me to house it & have that extra colour space available anyway.

I gotta say, I LOVE how small & light the XA20 is & for this type of camera it has a very nice image.

 

Nick, it sounds like you may be better with the DP4 if you don't want the recording option of the Ninja?

What I have found is just how useful Focus Peaking is!

I don't have that on my HVX200 & I have become addicted to Focus Peaking now:)

I really can't wait to get the XA20 underwater & see just how it goes.

The GH3 with a DP4 would be a nice compact macro rig that is for sure.

Keep us updated on your progress.




#338406 The Triangle

Posted by Pete L on 20 October 2013 - 08:46 PM

Beautiful stuff Dustin, well done mate:)




#336768 sxs cards v tape

Posted by Pete L on 07 September 2013 - 02:04 AM

Max, I use shotput pro to transfer footage onto 2 separate hard drives simultaneously at the end of a diving day.

That way I have 2 separate copies incase of hard drive failure & shotput will give you a green light at the end of the file once it has checked that the two transfers are identical file size & numbered files.

Cheers Pete.




#331259 First Place Video - Classic - SEA International 2013

Posted by Pete L on 12 May 2013 - 01:23 PM

Well done mate.


#328390 RED 4k+ (and similar) vs Sony PMW 200 (and similar)

Posted by Pete L on 22 March 2013 - 09:44 PM

Another camera to consider would be the Panasonic HVX200 & a Gates housing.

Great macro, especially behind a flat port or in combination with a diopter.

The Fathom wide port also works very well.

The camera records Dvcpro100 & 422 colour onto P2 cards-although expensive.

Records 1920x1080 & variable frame rates.

Get yourself a set of Sola 4000 lights with the blue filters & also a set of the flouro front plates & you have a versatile setup.

Flip red filter also inside the housing.

It is certainly a dated camera compared to some of the others & obviously not in the same league as Reds etc...

But what are you really going to do with your footage? If you are talking about a 12 month stretch with a camera then these are cheap to buy, you won't lose much on resale, they are cheap to pick up a second camera if you flood or have issues & still pull a nice image.

 

Just another suggestion as the list is endless really.

Cheers Pete.