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thetrickster

Member Since 30 Nov 2013
Offline Last Active Yesterday, 09:21 PM
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#400283 SUPE / Scubalamp Video Lights

Posted by thetrickster on 22 October 2018 - 05:39 AM

I have the Archon DM60, which has the flat port, how can you tell it's 90 or 110 degree. The light beam seems quite spread when I use it.

 

From my very basis understanding, you want a dome port to counteract the refraction of the water to provide the same beam angle as above the water, so I would presume the reverse is also true for your flat ported DM60. Its 110 in air and 82.5' in water.

 

https://www.lightand...ome-port-optic/




#400280 SUPE / Scubalamp Video Lights

Posted by thetrickster on 22 October 2018 - 02:42 AM

A flat port version would be epic - and would be 90' underwater (I would hope)




#400088 Nauticam HDMI Cables - Fragility

Posted by thetrickster on 13 October 2018 - 10:59 PM

Am hoping to find a 90 degree HDMI plug and shorter cable which would allow a straight line from bulkhead to 90 degree plug.
 
If I find a workable solution I will post part numbers.


Keep me updated on this, if you find one. [emoji1303]


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#399950 Who is excited about Blackmagic Pocket Cinema 4K?

Posted by thetrickster on 09 October 2018 - 05:43 AM

The difference is extreme on land for Dual-IS vs just lens IS if you for example do some recording while walking.

 

But I still feel, if you get a balanced rig underwater the GH5s with an optically stabilised lens provides great results.

 

Got a couple of weeks of back to back diving end of Oct - its one of the thinks I'm going to have a play with.




#399816 Underwater Colour Correction With The Sony AX100

Posted by thetrickster on 03 October 2018 - 02:57 AM

Would be interested in that, haven't touched Resolve yet, so something like this would be very interesting!

 

 

I am currently in the process of creating a full post production training series, using the free version of Davinci Resolve so keep an eye out for that when it is released.

 

Cheers Pete.




#399111 GH5 IBIS performance UW

Posted by thetrickster on 06 September 2018 - 11:32 PM

I think you are looking for a video like this:

 

The IBIS on the GH5 used along side the Dual-IS of the native Lumix lenses is very impressive to help smooth out shooting (especially where you are finning for example) - it was one of the main reasons for moving from the GH4 to the GH5 for me. 

 

However.. if you can get your rig nicely balanced with floats arms and not twitchy on the pitch axis (which is the main movement visible) and neutral underwater (let it go and it just floats in front of you) then you are not fighting to keep it steady, and so you will be able to use the water to dampen any micro judders and have nice steady shots with the cameras even without stabilisation - like the GH5s.  (Having a top mounted monitor and big dome a prime example of how to make a rig twitchy :)

 

Other things would be filming in 60p and playing back in 30p (this removes the visibility of bumps in the footage and gives you super nice slowmo) - what I've been doing recently is filming at 30p and playing back at 24p - this gives you a 20% slowdown, so helps with any judder yet isn't slow enough to notice you've slowed it down.

 

Having both the GH5 and GH5s - its a hard choice, but the lure of DCI4K and the much better ISO performance makes me choose the GH5s.




#398258 SUPE / Scubalamp Video Lights

Posted by thetrickster on 09 August 2018 - 02:40 AM

As I'm looking for V6K Pro price, I come across another competitor: Archon DM60.

 

Archon is more established than SUPE/Scubalamp, and is cheaper (too good to be true?). Anyone seen the Archon light in action? Can't find it in youtube.

 

I would guess, these use the same LED module as the V6K and probably made in same factory, given they use the same power button / indictor. Thats good value $$$.

 

The days of high quality / powerful lights costing 1000s is over. 




#396459 Panasonic GH5: what do you use to get the correct exposure?

Posted by thetrickster on 14 June 2018 - 11:56 PM

Filming underwater, I find trying to use a fully manual mode is hard, the changing conditions, lighting etc lends itself to using one of the semi auto modes. I use Multi meter mode also, as it doesn't cause big shifts in exposure if using one of the auto modes.

 

With the GH5 and GH5s where AutoISO works with fixed apertures and shutter speeds  (and the ISO performance is a non-issue) the need to 'monitor' exposure to me is a bit of a non-issue, with the GH4 i tried full manual and trying to adjust, but failed most of the time.

 

I only tool I find useful is the RGB parade, if doing a MWB on my monitor. But the GH5 screen I try and leave as bare as poss.




#396012 SUPE / Scubalamp Video Lights

Posted by thetrickster on 04 June 2018 - 04:58 AM

I took 2 of mine to Sri Lanka a couple of weeks ago, diving HMS Hermes.

 

Unfortunately due to luggage allowances on Qatar (and taking my CCR) I only took a GoPro with me and also no float arms, so it was a bit of a mess (too heavy without lots of shaking, so hardly anything worth while - ended up using it for photos more than video and even then most were pretty crap.

 

However even two lights, provided tons and tons of lighting both outside and inside the wreck. (Clips on other laptop, but can upload some bits later)

 

Here are a couple (of awful! LOL) pictures taken while the lights were on:

 

GOPR0265.jpg

 

GOPR0268.jpg

 

Great colour, beam spread, power and burn time.

 

Only negative i did have was one of the battery units charging circuits failed, but I emailed them a video of it not working, and by the time I got home, a FoC replacement was on its way to me, no ifs no buts and turn up last week.




#395956 Panasonic LUMIX GH5 for underwater video

Posted by thetrickster on 03 June 2018 - 03:46 AM

i would like to hear if any of you have had to admit that the micro 4/3 sensor is just a bit too small to capture great photos with ambient light below 20 meters?


Firstly if you are looking at stills photography I don’t think the GH5 is the right choice. The other cameras have better flash sync speeds, builtin flashes, higher bit depth raw modes and higher Mp etc.

But sensor size and iso performance (I don’t think) is something to consider these days in m43 cameras. I remember thinking ISO800 was a high iso back with my E-1. These days it’s a non issue.

But is the m43 sensor too small for ambient shots? No way.

If anything it’s better, you gain a load of depth of field for free with m43, running the same settings as FF and also don’t have to worry so much about diffraction as you don’t need to run >f16 to get everything in focus.

Below is a single frame (not even a photo!) taken at 27m (f5.6, 30fps, 1/60th)

bef269db6e86b8473005a06be0894e74.png

Nothing wrong (to me) shooting landscape at depth. :-)


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#394878 Winter musings

Posted by thetrickster on 30 April 2018 - 05:20 AM

So, if you were in my shoes, which option would you choose?  Thanks for the help.

 

How much you got to spend? :)

 

The GH5 (and m43 generally for that matter) I don't think suffers from lack of DoF - set the aperture to f5.6 and you are golden.

 

What aperture are you running on your current camera? Might give you a good idea of what fstop you would require on a m43 lens to match the DoF.

 

Personally you might find the ergonomics of a still's camera very off putting compared to the ease of use with your L&M housing. The lack of instant thumb control for camera control - you might find it a big step backwards. I'm very pleased thou with that Nauticam have done with the NA-GH5, everything pretty much is at your right thumb.

 

So perhaps an AX700 in a gates housing would be a good call, but your right, I think the consensus is that Sony's MWB still isn't up to much compared to the Canon and now Panasonic (better its getting, but still not great) so you will probably still need the flip filter.

 

I've got zero complaints with my GH5/GH5s setup, but its a pretty amazing system when tied with the WWL-1. The only negative I have is the buoyancy and the need for so many float arms.

 

Something only really bettered (for video) if you are willing to spend another 15k-20k on an EVA1 or C200 at the moment.




#394641 GoPro Fusion or ThetaV - Anyone got one?

Posted by thetrickster on 22 April 2018 - 09:12 AM

I normally fly BA or United or similar. Horrible old planes, crap seats etc. But still give you 23kg bags (cheapish 2nd bag) plus the old style “if you can lift it, you can bring it” for hand luggage. This trip was really last minute and I had to get the same plane as the others on the trip to get the bus. Probably not my first choice. It will be an adventure.

Have a super trip! Look forward to the photos / videos.


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#394620 GoPro Fusion or ThetaV - Anyone got one?

Posted by thetrickster on 21 April 2018 - 06:44 AM

Looking at buying a new ‘toy’ to have a look at on my next holiday, and I’m eyeing up the Fusion - as taking my drone seems risky these days.

It seems to provide the best / sharpest video out of all the current prosumer cameras (from the current reviews of the Rylo, Insta360, ThetaV etc)

Wondered if anyone has one either land based or either taken it underwater (I think only the 360 bubble can do this to 10m...)

The thetaV looks really promising with its underwater housing to 30m, but the YouTube videos are pretty bad, yet the same clips on their website are pretty amazing.


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#394589 Show me your GH5, How you trim your buoyancy?

Posted by thetrickster on 20 April 2018 - 02:29 AM

Do you mean the Ikelite handle quick release system? Can it be adapted to the Nauticam?

 

I'm thinking these :

 

https://www.carbonar...6808286185.html

 

Can you explain what is your tyre weight system?

 

 

At your local garage, they have to balance your car wheels, they use stick on weights, in 5g or 10g blocks. You can use these anywhere on your camera housing, arms etc to get the weighting just right

 

l_tw560.jpg




#394567 Show me your GH5, How you trim your buoyancy?

Posted by thetrickster on 19 April 2018 - 10:06 AM

Here is my current setup

a2d1b1a6cb5fbdf7576954eab16be25b.jpg

866ce5d97ee1779075c3c6cde2c3300b.jpg


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