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adamtaylor

Member Since 30 Aug 2013
Offline Last Active Today, 01:16 AM
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#384821 Panasonic LUMIX GH5 for underwater video

Posted by adamtaylor on 07 June 2017 - 06:41 PM

For those interested I posted a couple links to footage from my first dive with GH5 under Editing, Post Production etc.

 

http://wetpixel.com/...showtopic=60128

 

Constructive criticism would be welcome as I am new to Underwater Video

 

Regards,

 

 

Adam




#384820 Panasonic GH5 first dive

Posted by adamtaylor on 07 June 2017 - 06:29 PM

Hello all,

 

On both the Mirrorless and Video Gear threads there has been much speculation and desire for information on how the GH5 performs underwater.

 

I received my Nauticam Housing last week and got the camera in the water for a single dive on Sunday. I used my Olympus 12-40 f2.8 Pro lens in 180mm Nauticam glass dome which I used with my Olympus EM5

 

Full disclosure I am a rookie at video, and have even less experience editing. I have been shooting stills for 4.5 years and while I enjoyed the EM5 I found it a bit lacking lately with some of my deeper, darker dives doing conservation work on glass sponge reefs. Constructive criticism greatly appreciated.

 

I am in the process of upgrading both my hard drives and computer system as my old laptop is out of space, and horsepower.

 

Due to my current computer challenges videos linked below were shot 8 bit 1080p 60fps, and have been run through Windows Movie Maker which converted them to 30fps? (As stated, the technical side is currently beyond me)

 

No colour grading, exposure or other shifts has been applied. You will note the white plumose anemones are washed out / burnt at times but I really wanted to get a feel for the camera, and judging results on a small camera screen is not that easy. There is some focus hunting, which I honestly think was me hitting AF lock lever trying to re-focus.

 

Anyway, to keep things simple I shot 1/60, f8, Auto ISO, Manual White Balance and Single Autofocus.

 

The white balance was remarkably easy, simply hit the thumb lever, then up button to activate viewfinder, point at something white (I used my dry glove, or a white anemone) and hit OK. Perhaps a grey slate would work better? I don't know, this was the first time I have ever performed manual white balance.

 

Local water conditions can be challenging at times due to river run-off and plankton. This dive had pretty good conditions; decent visibility at depth with suspended particulate and a surprising amount of light considering the top 8 feet was river silt with 2 foot viz, and the next 10+ feet was plankton soup with 5ish foot viz.

 

Here are a few miscellaneous shots where I tried different scenarios https://youtu.be/ydu2t-w1Vis

 

 

Mother octopus grooming eggs (eggs start at 1:06)   https://youtu.be/M7NrIMyTR4o

 

 

Regards,

 

 

Adam




#384747 Panasonic GH-5 lens selection WWL1 or wide-angle

Posted by adamtaylor on 05 June 2017 - 03:02 PM

Had to use my old camera on Saturday dives as I didnt have a battery for Leak detection system.

But Sunday's five went well.

Need to upgrade my computer before editing 4K and will go through the 1080p 60fps footage in next couple days.

Very impressed with ease of white balance for a rookie like me. 2 octo on eggs was an added bonus

More comments later in week

Sent from my SM-G903W using Tapatalk


#384613 Panasonic GH-5 lens selection WWL1 or wide-angle

Posted by adamtaylor on 01 June 2017 - 09:16 AM

It might be an issue with manufacturing tolerances of either Panasonic or Nauticam. Here is a photo of the Olympus 60mm focus gear contacting the nose on my GH5. I've worn off some GH5 paint attempting to turn the gear.

Picked up my Nauticam GH5 housing yesterday and it appears very well constructed & sturdy.

Have not taken it underwater but did try my existing lenses for fit issues;

Olympus 12-40mm f2.8 Pro in the 180mm glass dome with extension etc appears to work fine.

Olympus 60mm in Nauticam 77mm Macro port for 12-50mm also appears to work fine.

The Olympus 12-50mm with Nauticam macro / zoom gear contraption I used with my EM-5 wont even properly connect to the camera. It will mount, but due to the teeth on the zoom gear and alignment of the 'cage' around the lens it doesn't seat well enough for the camera to even recognize it.

Awaiting further input on the new components for this lens that work with GH5 (cost, availability etc...)

FYI for Canadian purchasers. Panasonic Canada does not list the Panasonic flash specified on the Nauticam website. Unless things change it looks like we will have to order through USA.

Looking forward to testing this weekend in the water.

Regards


Adam

Sent from my SM-G903W using Tapatalk


#383895 Panasonic GH-5 lens selection WWL1 or wide-angle

Posted by adamtaylor on 08 May 2017 - 05:09 AM

Personally I find the 12-40mm my preferred lens if conditions are reasonable for wide angle. And even when the top 20-30 feet are soupy and it dark down below it can still collect alot of light.

Not super wide, but when you find a reasonably small critter you can zoom in to 40mm and get some close ups, or fish portraits.

I find the 180mm dome a bit bulky, and it really changes the buouyancy characteristcis but if you like over-under shots it works well.

That being said I would prefer something wider....

Sent from my SM-G903W using Tapatalk


#382918 Nauticam dealers now list part 17713 for NA-GH5

Posted by adamtaylor on 07 April 2017 - 12:28 PM

 
Yeah, I watched that video previously. It performs better, but still kinda flakey. I have a GH5 and am deciding if I'm going to keep or return it. I have just the 60mm lens to test with. Moving from a dedicated video camera to mirrorless is a big change. 

Stephen, if you do keep it and get the GH5 underwater in the Northwest please post comments.

My EM5 struggles with focus at times, especially with the 60mm in waters near Vancouver. Be interested to see how the GH5 compares.

There is alot of fresh water mixing near the surface at many of my regular sites. So I imagine any camera will struggle focusing through changing water densities...

It is a big financial commitment to purchase a GH5 and housing, even if my current lenses and ports are compatable. Seeing some real world results and reviews will be required before I make my decision.

Thanks


Adam

Sent from my SM-G903W using Tapatalk


#370303 Vancouver Aquarium Allegations

Posted by adamtaylor on 09 February 2016 - 11:01 AM

I will have to watch the video to comment on it's content, but have heard LOTS of chatter about it. From what I have heard the 'documentary' is very biased and some information has been used out of context.

 

Perhaps someone with more knowledge of the specifics can comment?

 

Having been involved in a number of Citizen Science and Marine Conservation initiatives with the Vancouver Aquarium I have nothing but respect for the individual researchers and the organization for it's efforts in those specific areas.

 

Before tarring the whole organization with the same brush consider both the source of the video, and the other initiatives the Vancouver Aquarium is part of (science, conservation, education, marine mammal rescue / rehabilitation etc)

 

I will reserve judgement on the whales in captivity part until I have time to watch the video.

 

This issue, and discussing support of the organization should be relevant to the Underwater Photography Community as they have a number science initiatives that local underwater photographers can and do contribute towards. Off the top of my head these include; Rockfish Surveys, Annual Lingcod Egg Mass survey, Sea Star Wasting Syndrome, Glass Sponge Reefs etc.

 

Input from their researchers and support from the organization has helped with numerous conservation issues over the years which are directly relevant to Scuba Divers and Underwater Photographers. Some of these include creation of Rockfish Conservation Areas, reintroduction of Black Rockfish to Howe Sound and Bottom Fishing Closures for Straight of Georgia Glass Sponge Reefs. Aquarium staff are working with other non-profit groups that I am involved with on two other glass sponge reef initiatives;

 

1) Proposed expansion of Halkett Bay Provincial Park to include glass sponge gardens and glass sponge reef (bioherm) all of which are within recreational scuba depths.

 

2) Expansion of Bottom Fishing Closures to include ALL known glass sponge reefs in Howe Sound (5 of which occur shallow enough for air diving which is unique in the world).

 

Regards,

 

 

Adam




#369314 Width and Height difference of RAW images wider / taller than visible in Ligh...

Posted by adamtaylor on 14 January 2016 - 05:16 PM

_alex_ said check/change the crop ratio in the CAMERA not in LR ;)

 

Camera settings are 4:3 settings in LR were 4:3 as well




#358852 Olympus 7-14 mm f2.8 will not fit in Nauticam housings

Posted by adamtaylor on 14 March 2015 - 06:00 PM

I have the 180mm glass dome and extensions for my E-M5 Nauticam Housing and use with the 12-40 f2.8 lens

Works great, took a little getting used I the size, and attaching the lens to camera body inside the housing & THEN securing the port with extensions attached.

Considering the only other ports I had used were the flat port for 12-50 kit lens and the 4" mini-dome for the fisheye I will admit to being nervous about the slight movement of the multiple parts.

System has worked flawlessly since I got it

Love the lens, and the ability to get wide-angle images even with the low viz waters around Vancouver, British Columbia.

Zoom for the 12-40 is controlled by the knob on the housing. Had hoped that the focus knob on the adaptor port would be able to achieve manual focus, but have not figured a way to have both zoom and focus gears.

Will definately be having a close look at the Oly 7-14mm when released. The wider angle would be nice.

Regards


Adam