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Interceptor121

Member Since 25 Jun 2011
Offline Last Active Today, 01:22 PM
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#397148 Focus Light Suggestions

Posted by Interceptor121 on 08 July 2018 - 07:26 AM

 
That's often true, but I use the "focus light" on my camera as my primary dive light as well.  In locations like the UK or PNW where we have dark and murky waters a power light is required.  A strong flood is great for lighting up the reef and getting true colors for the eye, not just the camera.

That’s exactly how I use my sola more as a dive light to that regard I like the narrow beam option


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#397119 GH5s 4k test footage

Posted by Interceptor121 on 07 July 2018 - 04:09 AM

Hi, 
 
I have been looking at the GH5. What lenses do you recommend for wide angle that work well with the GH5?
 
I am moving away from my GoPro as below 30 feet it is dreadful. I want to shoot 4k underwater video and like the fact that the GH5 will shoot 60fps. I was impressed with the light sensitivity in you video.

From Gopro to mirrorless is a significant step. You are looking at $5,000+ to get you started. Have you considered a 4K camcorder as alternative?


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#396406 HDR Underwater

Posted by Interceptor121 on 13 June 2018 - 09:27 PM

To conclude @dreifish nobody produces HDR because there are almost no options to grade without specialised video hardware
Have spent some time on this and reached some conclusions will do some write up soon


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#396321 Best m43 zoom lens for WWL-1?

Posted by Interceptor121 on 12 June 2018 - 06:34 AM

Initially Nauticam had no support for the 14-42 mark II until I tried it and got a 3D printed gear for it then it became supported
I would check how this lens behaves if it reaches maximum length at both tele and wise you can try to fit in the 35, 45 and also in the 35+20 or 35+30
If the lens doesn’t have that behaviour and is short at wide and long at tele optical quality will be poor at wide
Let me know how you get on
Another lens that works with the WWL-1 is the 12-32mm am selling it with zoo gear this will need a 29 port but is more indicated for cameras with crop like the GH4 or the GX80/85


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#396189 For Sale Panasonic G X Vario PZ 14-42 and Nauticam Zoom Gear 36146

Posted by Interceptor121 on 09 June 2018 - 12:24 AM

Good morning Interceptor121

Can i ask how come you do not use this anymore?
What lenses do you mostly use?
I was about to buy a new ome and the gear, but i am stil in doubt and reading as much as i can to find out what lens would be most suitable for me, with the wwl-1

Best regards
Stefan


This lens works very well with WWL-1 and the port 29 however when I bought it the port 29 didn’t exist so I had 3 lenses and gear for the port 35.
One works well the others are too far from the glass and require the 29 port.
As I use the 35 also with the 30 mini extension for the macro 60mm am selling the others two lenses
If you start from zero and want to use wet lenses I would definitely consider this lens with the 29 port


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#396176 Scratched glass

Posted by Interceptor121 on 08 June 2018 - 11:49 AM

To do what the previous poster says check that you dont see it in the fov

if you do undo the plastic LD part with an allen key and rotate one or two positions then reset




#396160 Nauticam rx100m2 housing no bulkhead for vacuum

Posted by Interceptor121 on 07 June 2018 - 10:06 PM

Here it is I had double checked back on interceptors blog as well before I questioned it. I was able to return the bulkhead

Your housing doesn’t have the hole because this was intended for the strobe bulkhead not the vacuum
That solution didn’t work and Nauticam must jave redesigned the housing to remove it entirely and make it cheaper
So your housing is one of the newer ones


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#395957 Panasonic LUMIX GH5 for underwater video

Posted by Interceptor121 on 03 June 2018 - 03:59 AM

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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I don’t even think this is fair te GH5 is good at stills too the OMD-EM1 mark II maybe has another stop of ISO but the GH5 has 13 stops of dynamic range and plenty color depth to compete with cropped sensor.
A lot of people out there have this as primary rig. Only Pros and people with deep pockets go for full frame and yes there is a difference but for plenty it is still fine
I have a Nikon D7100 a GH5 and am thinking of selling the D7100 because there is not much apart not doing low light photography


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#395938 Panasonic LUMIX GH5 for underwater video

Posted by Interceptor121 on 02 June 2018 - 12:41 PM

Hi all.
Now that everybody has had a good chance to get some experience with the gh5 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?


I don’t think people that buy the GH5 do it to take deep water ambient light besides depending on light you can take pretty decent video at 25 meters without lights


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#395811 HDR

Posted by Interceptor121 on 28 May 2018 - 02:43 PM

I finished writing my blurb

http://interceptor12...o-4k-hdr-video/

Look for the part about conversion of clips an record settings for something useful if you want to try HLG

I am now going to experiment with the HLG view assist...


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#395781 HDR

Posted by Interceptor121 on 27 May 2018 - 09:59 AM

Do you mean the computer player when streaming from your computer to your Tv or the Tv player when you insert a hard drive or a USB on the TV?

Tv player by the way even apple tv doesn’t play 422


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#395766 Nauticam rx100m2 housing no bulkhead for vacuum

Posted by Interceptor121 on 26 May 2018 - 11:17 PM

I posted a review on my blog interceptor121.com it works well especially in the plastic valve version
Check you have the screw on the housing all of them have it


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#395765 HDR

Posted by Interceptor121 on 26 May 2018 - 11:11 PM

I have finished my investigations yesterday. If you can bear DaVinci it is possible to produce HDR HLG with free software and output HEVC to a compatible TV as well as H264 to YouTube. The HEVC files come to around 12 mbps with quality factor 22. You need to push for average bitrate to get more. Netflix uses around 15 mbps for their streams so this is reasonable.
Youtube uses VP9 and H264 there is no way to code this codec to specifications without using a command line tool on a mac for free so you use H264 10 bit and set bitrate to around 50mbps. The encoding is fast and better than using prores at >400 mbps so cuts the time to 12.5% for upload
All the resulting files are 4:2:0 10 Bit colour there are no Tv sets able to play 4:2:2 on a high efficiency codec. Computers will struggle to play anything except H264 youtube like without hardware acceleration and you need VLC to play the files
Will post the steps for media import into my blog


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#395742 HDR

Posted by Interceptor121 on 25 May 2018 - 11:33 PM

I used to do the same with clipwrap to unbundle mts
It is also possible to run ffmpeg however this has a command line.
Generally as a Mac user I find resolve interface extremely confusing it has millions of menus and it is not intuitively easy so may spend the money for final cut pro that in comparison is a breeze
On the other hand if you shoot HLG grading effort should be less so spending £££ just to put titles transitions and effect is something to think about


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#395356 HDR

Posted by Interceptor121 on 13 May 2018 - 01:13 PM

I have tried HDR on my GH5 underwater and I did not really get any satisfactory results. Its a delivery forma5 and not suited for serious color correction, which you usually do need to some extend for underwater footage.

There are some undeewater Gh5 HLG clips on Youtube. All equally unconvinicing in my view.


Do you have a link? If your screen doesn’t support it (and most computer screens don’t) you won’t see benefits


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