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Nick Hope

Panasonic LUMIX GH5 for underwater video

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Hello Pajpen

my settings were f 6.3 sh 60 and iso was 250 noise rduction 0 long shtr noise reducrion off

glad you liked it..

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There are plenty of subjects that you need f/16 if you want to focus more than the eyes like pygmies, bobtail squid, shaun the sheep nudis and you can’t really work out with f/11 likewise you want more depth of field on a larger subject if you want to focus the whole fish I have plenty of examples where the same shot on the same subject looks better on a full frame but less so on ambient light wide angle

 

 

Sent from my iPhone using Tapatalk

 

But if you need f/16 on m4/3 to get the entire subject in focus, then you'd need f/32 on full frame, not f16 to get the same depth of field. And the loss of resolution to diffraction would be the same (assuming the same pixel size). The shot may look better on full frame because of dynamic range, for example, but assuming the same level of magnification and the same depth of field, they should look basically identical if I understand the physics correctly.

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dreifish,

Even the dynamic range is comparable between FF and MFT, in case you shoot MFT at 200 and FF at 800 ISO, as you propose. See e.g.: https://www.dxomark.com/Cameras/Compare/Side-by-side/Nikon-D850-versus-Olympus-OM-D-E-M1-Mark-II-versus-Olympus-OM-D-E-M5-Mark-II___1177_1136_1006

 

Wolfgang

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I don't have a scientific explanation however look at those charts

 

This is a Nikkor 105 on a Nikon D800

 

https://www.dxomark.com/Lenses/Nikon/AF-S-Nikkor-VR-105mm-f-2.8G-ED-mounted-on-Nikon-D800E---Measurements__814

 

Perceived resolution around 5 megapixels

 

This is the Olympus 60mm on a OMD-EM1 Mark II

 

https://www.dxomark.com/Lenses/Olympus/Olympus-MZUIKO-DIGITAL-ED-60mm-F28-Macro-mounted-on-Olympus-OM-D-E-M1-Mark-II---Measurements__1136

 

Perceived resolution 3 or less megapixels

 

In theory if you look at imatest etc looks like the two outcome are comparable but when you look at the same subject at those apertures it is not

 

In terms of dynamic range you don-t see that in macro what you see is more colours due to the sensor so maybe the combination of colours and resolution together gives a better look

 

For wide angle shots in ambient light not much to say for shots with strobes FF always much better colours

 

For me is not much the dynamic range but the color depth and resolution where FF beats MFT however for video resolution does not matter and colours are anyway 8 or 10 bits so the extra 2-3 bits you have simply are not visible

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Interceptor, in the DXOLabs charts you linked, if you compare the percieved resolution with the Olympus at F11 and the Nikon at F22, they're both orange. Or compare F5.6 vs F11 for that matter. Perceived resolution looks pretty similar to me. Where are you seeing 3 vs 5mpix?

 

A full frame sensor does have better color discrimination, but again, that's ISO dependent--just like noise and dynamic range--as Architeuthis pointed out. So for instance, the EM1 has better color sensitivity at ISO200 (23.7 bits) than the D850 does at ISO800 (22.6 bits). Of course, if you're not limited by depth of field and can choose use ISO 200 on the D850, you'll get better color sensitivity (25.1 bits) -- about 2 stops better, as we would expect given that the sensor has 4 times the light gathering area.

 

In wide angle shots with strobes, you are no longer depth of field limited, so if you end up shooting both at, say, F8, ISO 200, then yes, of course the full frame sensor is going to show greater resolution, color sensitivity and dynamic range, since you're not limited by the depth of field as you would be with macro.

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Anyone using the GH5 with Nauticam housing and the Lumix 14-42 power zooming the WWL-1?

How heavy does it get underwater?

Is the WWL-1 easy to keep attached to the set up while not being used? (to make sure it does not change buoyancy from wide to macro)

 

My wife is looking for a solution to shoot macro and wide on same dive with good results.

 

Any tips on good video set ups are appreciated :)

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in water, with the right amount of additional floatation like the float collar, it can be neutrally buoyant.

 

Having the WWL-1 attached to an arm while not in use is possible, but it's a bit inconvenient to be honest. You'd definitely want to have the float collar to counteract the weight of the glass.

 

Personally, I think for easy of switching between macro and wide, you can't go wrong with a traditional camcorder..

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Hi guys, looking for solution that can support 4K60 10-bit for my Atomos Ninja Inferno recorder with GH5.

I currently have NA-GH5 housing but Nauticam housing for Ninja Inferno does not support HDMI 2.0 for 4K60 10-bit

It can handle HDMI 1.4 that can record 4K60 8bit, OR (but not AND) 4K30 10-bit ONLY.

Just because of their cable.

Any ideas?

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Hi Will

 

It is a good question, for me i am looking for a solution for the Atomos Ninja V.

Nauticam has written to me that they did not plan to make a housing to the Ninja V, so i am looking for the housing as well.

 

What experience do you have with the hdmi cables from Nauticam?

my last body tried 3 cables on a week and all cables made his Atomos show a black screen as soon as we got under water and the cable was moved a bit. No leakage detected though.

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Posted (edited)

What experience do you have with the hdmi cables from Nauticam?

Hi buddy,

I have not any experience with Nauticam's housing for external recorder because I didn't buy it yet (here in Russia it may cost me around $5000 for housing itself) for a reason I described - it can not record 4K60-10bit with native cable they provide, so it does not make any sense to use it until Nauticam get fixed their 'cable issue' in the factory but not DIY.

I had a long conversations with Nauticam's guys with no luck.

Or I have to find a way to replace HDMI (A-A) cable to high speed one with an adapter, nauticam's hole is not big enough to put HDMI-A (Full size) connector through it.

 

For this moment I just have Atomos Ninja Inferno and GH5 and NA-GH5 housing and use GH5 without an external underwater monitor.

 

I have an experience to use different HDMI cables with GH5+Ninja Inferno in my studio not underwater.

So both (Atomos) cables I have are quite expensive ~$150 vs $50, and $50 cable does not support 4K60-10bit, but 4K60-8bit does.

The $150 cable is OK

https://www.facebook.com/photo.php?fbid=2209411635756424&set=a.177517785612496&type=3&permPage=1

I have two more chinese s**t cables I bought at AliExpress for my experiments and they just don't work and show me black screen.

 

----

Also I have complains about another issue that Nauticam has and doesn't want to admit and fix - TERRIBLE reflections in conrtlight from shining black surface that covering their DOME.

I described it here: https://www.facebook.com/VitalySokol/posts/2112898938741028

For now I use black velvet to cover backsurface (such as SeaCam's domes have), but I have to find good material and replace my old solution - it showes me black corners in 7mm focal length.

https://www.facebook.com/photo.php?fbid=2256111124419808&set=a.177517785612496&type=3&permPage=1

 

To Panasonic as well =)))

https://www.facebook.com/VitalySokol/videos/2122858431078412/

Edited by WillFalcon
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Hi Will

 

It is a good question, for me i am looking for a solution for the Atomos Ninja V.

Nauticam has written to me that they did not plan to make a housing to the Ninja V, so i am looking for the housing as well.

 

 

Nauticam makes a housing for the Ninja V. Nauticam PN 17922

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Posted (edited)

Nauticam makes a housing for the Ninja V. Nauticam PN 17922

Well spotted, Lionfish. It is indeed listed as Recommended Accessories for the BMPCC and Fuji XT3 housings. So it will be coming.

 

No M24 bulkhead on the Nikon Z6/7 housing, so were bumped on that one re. new RAW option....

Edited by bubffm

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Hi Will

 

Thx for you comments, lets hope Nauticam soon will make a good solution.

 

 

Hi Lionfi2s

 

Thx Lionfi2s, have to admit i asked them back in March 2018, if i remember correct.

And i guess they just did not have thought about it at that time?? And i read their mail like they never would make it :-)

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Nauticam makes a housing for the Ninja V. Nauticam PN 17922

Don't see it at Nauticam's website.

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Don't see it at Nauticam's website.

 

It's not listed because it has not been released yet. But it is listed as "Accessory" on the two housings I mentioned above.

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