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Sightseer
Posts: 2
Accepted Solution

Re: Scuba Diving - Best Hero6 Settings (Resolution/FPS/Stabilisation)

Ok so I've done a tonne of looking around, reading of other posts etc and just wanted to see if I could update the advice that is alreayd out there. Older models of GoPros have had a lot of discussion, but the new Hero6 seems to have had less.

 

My kit:

 

- GoPro HERO6 Black

- Red Filter

- Neutral Bouyancy Pole Mount

- 64GB Sandisk Extreme 

- 3 batteries

 

The thing I'm really struggling to understand is how useful image stablisation is to underwater footage. With fast moving fish etc I'll be filming at 60fps, but obviously image stablisation is not supported at 4k if I do so. 

 

My options are either to film at 2.7k 60fps Unstabalised or 4k 60fps Unstablished.

 

Anyone have any thoughts or experiences of these two against each other? I could apply stablisation afterwards when editing I assume.

 

Thanks

 

Dom


Accepted Solutions
Highlighted
Explorer
Posts: 11,235

Re: Scuba Diving - Best Hero6 Settings (Resolution/FPS/Stabilisation)

I'm not to sure on how much stabilization improves things underwater as minor shake is pretty much eliminated by the buoyancy of the water. I've seen some videos with comparisons, and it does seem to have an effect, but how much is pretty debatable. If you can do it with your editor, I wouldn't make my decisions on resolution/fps based on whether or not EIS is available.

I pretty much film everything in 2.7K/60 and use a 1080p sequence when editing. With 2.7K I get a 71% crop so I'm able to zoom and center my videos without losing any clarity. With 4K it's closer to a 50% crop so you do gain more in a 1080p sequence, but I don't find the trade off of more storage space, higher processing demand (when editing), and the loss of EIS at 60fps worth it. For scenic shots I use 4K/30, and when I'm flying my drone I'll use 4K/60, but those are about the only time I use a 4K resolution.

What you do need to consider is the amount of available light. Even at 60fps, if there isn't enough light it will force the shutter to slow to 1/60 which will make for blurry movement. Additionally, the EIS will only work if there is sufficient light. At lower light levels it will not work as efficiently and will basically shut off if it's too low.

I'm not saying you can't use 60fps. If you want to be able to effectively slow down footage it's your best bet; however, if your light isn't good, the camera will need to use a higher ISO and really anything over 800 doesn't usually look all that great. In most cases, 30fps with a lower ISO will look much better overall in lower light.

What editor are you using? If you are using something like Adobe Premiere Pro, you might also want to consider doing the color grading in the editor instead of letting the camera handle it. A Flat color profile will not look as vibrant as the GoPro color straight out of the camera, but you will get more detail in shadows and the colors/saturation can easily be brought up to look like if you had shot using the GoPro color.

One last note. Auto Low light only allows the camera to adjust the fps in low light. If you want 60fps but have Auto Low light on, there is a good chance the camera will film in 30fps. It's generally best to just keep this setting off and choose the setting you want.

Hopefully you get some more responses by people who have used their GoPro for scuba. You should also post this question over at www.reddit/r/GoPro as they have a pretty active community.

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Highlighted
Explorer
Posts: 11,235

Re: Scuba Diving - Best Hero6 Settings (Resolution/FPS/Stabilisation)

I'm not to sure on how much stabilization improves things underwater as minor shake is pretty much eliminated by the buoyancy of the water. I've seen some videos with comparisons, and it does seem to have an effect, but how much is pretty debatable. If you can do it with your editor, I wouldn't make my decisions on resolution/fps based on whether or not EIS is available.

I pretty much film everything in 2.7K/60 and use a 1080p sequence when editing. With 2.7K I get a 71% crop so I'm able to zoom and center my videos without losing any clarity. With 4K it's closer to a 50% crop so you do gain more in a 1080p sequence, but I don't find the trade off of more storage space, higher processing demand (when editing), and the loss of EIS at 60fps worth it. For scenic shots I use 4K/30, and when I'm flying my drone I'll use 4K/60, but those are about the only time I use a 4K resolution.

What you do need to consider is the amount of available light. Even at 60fps, if there isn't enough light it will force the shutter to slow to 1/60 which will make for blurry movement. Additionally, the EIS will only work if there is sufficient light. At lower light levels it will not work as efficiently and will basically shut off if it's too low.

I'm not saying you can't use 60fps. If you want to be able to effectively slow down footage it's your best bet; however, if your light isn't good, the camera will need to use a higher ISO and really anything over 800 doesn't usually look all that great. In most cases, 30fps with a lower ISO will look much better overall in lower light.

What editor are you using? If you are using something like Adobe Premiere Pro, you might also want to consider doing the color grading in the editor instead of letting the camera handle it. A Flat color profile will not look as vibrant as the GoPro color straight out of the camera, but you will get more detail in shadows and the colors/saturation can easily be brought up to look like if you had shot using the GoPro color.

One last note. Auto Low light only allows the camera to adjust the fps in low light. If you want 60fps but have Auto Low light on, there is a good chance the camera will film in 30fps. It's generally best to just keep this setting off and choose the setting you want.

Hopefully you get some more responses by people who have used their GoPro for scuba. You should also post this question over at www.reddit/r/GoPro as they have a pretty active community.
Explorer
Posts: 11,235

Re: Scuba Diving - Best Hero6 Settings (Resolution/FPS/Stabilisation)

Forgot the ".com" ..... https://www.reddit.com/r/gopro/
Sightseer
Posts: 2

Re: Scuba Diving - Best Hero6 Settings (Resolution/FPS/Stabilisation)

Wow thank you for such a detailed response!

 

Yeah I'll have to keep an eye on the ISO. I'll probably set a max of 400 although potentially 800 depending on light available.

 

I'm diving in Mexico in two different environments, reef diving off the coast (probably quite a lot of light, depth around 20m on average), and then cave diving in the Cenotes (much less light, going down to 30/35m). I'll probably reduce to 30fps on the deeper darker dives. It's also quite stormy out there so that will probably have an effect on ambient light underwater!

 

Thanks for the advice on auto-low light though, good to know that. And yes, I'm using Adobe Premier Pro so will have a think about the colour grading.

 

Also posted on the Reddit thread :) 

 

 

Explorer
Posts: 11,235

Re: Scuba Diving - Best Hero6 Settings (Resolution/FPS/Stabilisation)

Awesome. Hope you have a great time. Be sure to come back and show is some video.

With Adobe, one thing I like to do is take a few pictures with GoPro Color on. I then use the flat color profile to film. When I make my video edit, I load the picture and then use the Adobe Color Match. It makes color grading a lot easier.