Panasonic LUMIX GH5 for underwater video

[bubffm 178]

Also wide angle I had plenty issues. In Autofocus GH5 is hunting all over the place. In MF you need to keep pushing back button AF frequently - sometimes just not fast enough for the action. Visibility was just too bad to keep the lens wide open.

 

Still on a steep learning curve on this one. Handling the AX100 was easier for me... I may be able to squeeze in a week in October in Maldives to try some more. Fiji was not the greatest place tbh and mostly nasty conditions.

I'm reading on other forums people writing that 400mb intra codec is just a gimmick actually useless and othet ranting.

Obviously people have different needs and perfect video camera doesn't exist but the fact remains that at that price point you get the best market features/price ratio.

Probably it was the same for previous GH models but they struggled a lot breaking market lock-in.

I read that All Intra is not adding much in terms of Picture quality , just making it easier for comps to process, Not sure I really believe this. Lets see once its out.

[Davide DB 418]

As discussed dozen of times continuos AF underwater is really like a Unicorn. Everybody talk about it but nobody saw it. Maybe DPAF will change things but a video camera with a decent sensor size and a reliable AF simply does not exist.

Actually for WA shots I don't see the problem in 99% of use cases:

 

#1 stay hyperfocal.

#2 use AFL button

#3 use center point focus and avoid multipoint focus

 

I never missed a shot except when I crashed my dome on a coral getting a huge scratch on it.

[Pajjpen 63]

here is a link to some of the video with the GH5

 

I like your colors on the reef shots. Was that achieved by setting the kelvin internally or did u white balance off something, i.e. a coral. Also to everyone, do I white balance off a coral or whatever with your lights illuminating the subject?

[l.babcock 2]

I like your colors on the reef shots. Was that achieved by setting the kelvin internally or did u white balance off something, i.e. a coral. Also to everyone, do I white balance off a coral or whatever with your lights illuminating the subject?

I mostly white balance off sand. I was amazed how the GH5 MWB at depth without lights and a red filter. If im doing close up work not macro then I will MWB with my lights on off sand

[thetrickster 328]

What Red Filter are you using?

 

 

Regards - Richard

[Pajjpen 63]

I'd love to hear from more people who have used the gh4, to compare the white balancing to the gh5. Big enough of an improvement for an upgrade?

 

Skickat från min VTR-L29 via Tapatalk

[l.babcock 2]

What Red Filter are you using?

 

 

Regards - Richard

I don't use one. The gh5 white balance without filter even at depth

 

Sent from my SM-T800 using Tapatalk

[l.babcock 2]

What Red Filter are you using?

 

 

Regards - Richard

The GH5 doesn't need a red filter. It mwb perfectly without it even at depth

 

Sent from my SM-T800 using Tapatalk

[bubffm 178]

I agree from my trials with the GH5 that manual WB works really well when shooting ambient light. Clips to follow....

[Corrinek 0]

Does anyone know if the GX85 accurately white balances at depth or if it requires a red filter to do so?

[wagsy 0]

HI folks, gee long time since I have been on here. :-)

Looks like lots of old threads gone but good to see a few familiar names still here.

 

Anyway the GH5 had me intrigued so I downloaded the clips I found in this thread to play around with.

Placed them in a 10bit 1920/1080 EDIUS 8 Workgroup time line and applied its primary CC filter to them, wow you can really push them.

The 3840/2160 138mbps 10 bit (29 and 24 frame files) could be played but i did have to drop the preview window res down.

I also slowed down the 29 and 24 frame files by 50% using the EDIUS Optical flow.

 

Then I rendered out a 1920/1080 35mbps H.264 file which was fast as EDIUS uses the H.264 encoder on the Intel chip.

I use the resample method Lanczos 3 for the down conversion to 1920/1080.

All this on a old Windows 7 i7-3.50 gig system with16gig ram.

 

Anyhow, the quality of the Gh5 is very good, now you got me thinking of a new underwater setup :-)

File I made is here if you want to download it.

https://www.dropbox.com/s/p47nvz3n3sfcvzg/TestGH5.mp4?dl=0

[Davide DB 418]

Welcome back!!!

 

How long it's been Wagsy!!!

 

You left me alone using Edius

[wagsy 0]

Yeh, not many of us around mate:-)

It's been a long time indeed.

 

Must be time I got back into the water.

The quality of the GH5 looks awesome and be good for traveling.

 

Setting up a normal video camera in a housing it's just way over the top now days.

 

Been using EDIUS everyday for years now shooting realestate vids, never misses a beat.

[Pajjpen 63]

I agree from my trials with the GH5 that manual WB works really well when shooting ambient light. Clips to follow....

How’s the clips coming? Still very interested in this.

[bubffm 178]

Hi,

 

you can find them here:

[rlamarche 9]

Hi,

 

I've received my Nauticam GH5 housing a few days ago and I tried it yesterday.

I'm really pleased about the ergonomic of the housing, and the camera itself is really impressive.

 

I was in 4K 25p 422 10 bits Long GOP, auto ISO, aperture fixed, autofocus and dual stabilisation (no cropping stabilisation).

The surface was a little over-exposed, but with Premiere Pro I was able to restore the high lights.

 

I used profile Cine-D. Next dive I'll try other profiles, especially the HLG. I do not have the V-Log for the moment.

 

Here the video : https://youtu.be/vd3rwMUfMIg

 

 

 

[matdiver1234 29]

Re: "... manual WB works really well when shooting ambient light. "

I did my first ocean dives with the GH5 in the Nauticam housing yesterday, here in Palau. MWB does work very well indeed, BUT don't forget the red filter. Below about 10m I found it to be essential. However, even in the very murky vis at the site known as Buoy 6, at about 4pm, the colours, including the reds, really popped even at 26m. I'm still using the same method as with my GH2, which works a lot better for me than a card. It's a piece of grey-white/translucent detergent bottle, held over the port, and pointed to the brightest part of the surface. It's like an expo-disc.

I'll post a clip after I get back.

Cheers,

Matt

[Davide DB 418]

Could you show me this magic disk?

[matdiver1234 29]

Hey Davide, I think there's still a video on my vimeo page from a few years ago. Have a look (link in my signature).

The white balance on this cam is so good it's like my old 3-chip Sony,.... for which I paid about 1700 euros 12 years ago. Exactly what I paid for the GH5!

Right now the biggest challenge with the GH5 is deciding which settings to go for...

Ciao,

Matt

[matdiver1234 29]

Hey Davide, I think there's still a video on my vimeo page from a few years ago. Have a look (link in my signature).

The white balance on this cam is so good it's like my old 3-chip Sony,.... for which I paid about 1700 euros 12 years ago. Exactly what I paid for the GH5!

Right now the biggest challenge with the GH5 is deciding which settings to go for...

Ciao,

Matt

[Davide DB 418]

Hey Davide, I think there's still a video on my vimeo page from a few years ago. Have a look (link in my signature).

The white balance on this cam is so good it's like my old 3-chip Sony,.... for which I paid about 1700 euros 12 years ago. Exactly what I paid for the GH5!

Right now the biggest challenge with the GH5 is deciding which settings to go for...

Ciao,

Matt

 

Hi Matt

 

I could not find UW video on your Vimeo page. I meant the disk in itself. Is it transparent and you MWB through it?

 

Ciaoooo

[matdiver1234 29]

Davide, it's here I think:

You can't see through it, but it lets light through. If you look up "Expodisc" you'll see there's a topside product available for MWB, but it won't withstand use underwater.

Cheers,

Matt

[Davide DB 418]

Hi Matt

 

Thanks!

 

Now I understand because I couldn't find it. You previous signature brought to a different account

 

Bye

[bubffm 178]

When I was trying out different WB techniques a few years back, I was actually experimenting with one of those. I found them to be pretty unusable underwater back then. But your experience may be different.

Edited January 6, 2018 by bubffm

[Pajjpen 63]

Davide, it's here I think:

https://vimeo.com/76472021

You can't see through it, but it lets light through. If you look up "Expodisc" you'll see there's a topside product available for MWB, but it won't withstand use underwater.

Cheers,

Matt

I’d love to see those shots at 26m u said u got really poppy.