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ScubaBob

Member Since 04 Aug 2004
Offline Last Active Yesterday, 04:42 PM
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#383304 Anyone happy with their TriPod?

Posted by ScubaBob on 18 April 2017 - 02:41 PM

The xit tripods seem like a great way to go. I almost went that route until I stumbled upon TI1976's DIY design. I replicated that design fairly closely and love the results. 843851624bdf9ad44fd3ee1913b8b1ab.jpg67fe93c78aef8a3563c545a2fe2b896f.jpg


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#383017 Nauticam dealers now list part 17713 for NA-GH5

Posted by ScubaBob on 10 April 2017 - 08:25 AM

I'll try to test this when I get my hands on the camera and housing. I have mostly moved away from auto focus, but have had some success with some of the GH4 tracking modes. It does become one more thing to keep track of when shooting in full manual mode, but when focus is messed up I know it's my fault for not setting it right, not the cameras fault for deciding to focus on some algae rather then the rhinophores I originally focused on.

I find auto-focus, using back button focus, is "good enough" to get close and then I can adjust as needed (using manual focus knob if available, or by moving camera). Nauticam's addition of the large back button focus control on the GH4 housing was genius - and I really wish they had it on the GX85 housing. I was happy to see that it's been retained on the NA-GH5 housing.

Auto focus becomes increasingly challenging as you 1) reduce your depth of field, 2) increase the resolution and 3) switch to larger sensor cameras (related to #1 above). Small sensor dedicated video cameras are better at autofocus and keeping your subject in the "sweet spot". With the 60mm macro lens wide open your depth of field is 1-3cm at best. Shooting with the 7-14mm you obviously have a little more breathing room - but cameras AF modes still seem to "zone out" on the blue water occasionally.

Thanks for letting me ramble..


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#382317 Panasonic LUMIX GH5 for underwater video

Posted by ScubaBob on 16 March 2017 - 02:53 PM

Might have my hands on a GH5 (no housing though!) for the weekend. Any tests I should do that haven't been covered by everyone else on YT?


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#381368 Panasonic GH4 Settings for Underwater

Posted by ScubaBob on 09 February 2017 - 07:03 AM

Both. In camera I MWB often to keep me close. I probably end up adjusting about 5-10% of my shots in post for color (most adjustments are for shadows/highlights).


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#381110 Anybody shooting with the Panasonic GX80/85/GX7II?

Posted by ScubaBob on 31 January 2017 - 09:43 AM

Some more pics from GX85. Hope to get some video out soon..

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#380997 Pigmy Pipehorses of Bare Island

Posted by ScubaBob on 27 January 2017 - 09:18 AM

Yeah they are cool, but I want to see the cryptic species who snack on these guys - hah!


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#380908 DIY - Make your own fiber optic cable for your underwater flash - works with...

Posted by ScubaBob on 24 January 2017 - 03:29 PM

Do you have link for cable and connectors? I read that the 613 fiber cables from s&s may work with the triggers? Those cables are pretty expensive though.

Thanks for posting your videos! I just completed my quadripod based on your design and really looking forward to using it!


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#380682 High ISO Pana GH4 clip to share

Posted by ScubaBob on 16 January 2017 - 02:29 PM

Hi all,

As the title says.
Has someone some original underwater clip from a GH4 shot at high ISO to share?

I mean ISO 1000 or 1250 at least.

 

Thank you in advance

I have quite a bit of high iso footage I can send you. PM me your email address and I will send some via wetransfer. From looking at your previous footage, you tend to shoot primarily wide angle, with video lights on the foreground/subject, correct? You won't get nearly as much noise with this kind of shooting. The background will be much more blue, as it is with the GH3 and GH3, but will be a much cleaner image then trying to shoot with all ambient, or requiring the camera to shift WB across the entire image.




#380484 Anybody shooting with the Panasonic GX80/85/GX7II?

Posted by ScubaBob on 10 January 2017 - 10:40 PM

I have the GX85 in the Nauticam housing. Only 2 dives with it so far, but love the camera so far (save for the short battery life). Here's a few pics taken with the camera (first time using strobes in 15 years, so not the best). I will be using the camera primarily for video.
ef7a0ad916006a32b0b971838e28780a.jpgd0d1cb6b39a695263a48f502f01f6bff.jpg5f604f13b95f33149312a17b9ca072bb.jpg4aaeaffdf6968c631d42338b7e12e7ed.jpg


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#379994 Little micro strobe batch!

Posted by ScubaBob on 28 December 2016 - 03:29 PM

Got my Mini LED Strobe Unit from owfotograaf. And this day i got it in my new Aquatica A5Dsr UVhousing with little adaptation.
I use Inon strobes and it works perfect.
 
Thanks owfotograaf!
 
 
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IMG_4503.jpg
 
IMG_4499.jpg

What guage wire did you use to connect hot shoe to the board?


#379991 $1,500 Gift Certificate for any New Aquatica Housing. Cost $400.

Posted by ScubaBob on 28 December 2016 - 02:15 PM

Come on Evan, I think you need another housing. Maybe preorder GH5 housing? :-)


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#378954 Wanted: Nauticam NA-GH2 + 8mm port, or any GH2 Housing + port

Posted by ScubaBob on 20 November 2016 - 07:03 PM

PM sent


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#358485 Red gel on underwater video light

Posted by ScubaBob on 03 March 2015 - 11:30 AM

Drew - We should be able to "Like" your posts, even if you are a Moderator  :)




#358024 GH4 - Nauticam Macro Lens/Port Thoughts

Posted by ScubaBob on 18 February 2015 - 01:56 PM

Out of interest seeing that the pz14-42 has focus at start of shot and you can refocus why would you need manual focus? Looks like autofocus works wonder for me

 

Ok, probably a 1000 different scenarios I can think of :) For example, you have focus locked on the eye of blenny, which is perfectly in your lower right power point. The fish moves and the eye is now in the lower left power point, still a great shot. If the gods are on your side and you are in focus tracking mode you may be ok. But they aren't, so you're not and the eye is out of focus. You can either re-establish focus and reframe your shot hoping the blenny doesn't move, or use the manual focus knob slightly and using peaking, get yourself back in business.




#357952 GH4 - Nauticam Macro Lens/Port Thoughts

Posted by ScubaBob on 17 February 2015 - 11:38 AM


btw, it was very interesting how you attache zoom gear on pz 14-42.

I haven't try this lens underwater yet but so far footage looks reasonably sharp and OIS working well.
 

 

Have you tried assigning the electronic zoom to a function key and using the up and down arrows to zoom? I do this and land and it works great (I don't believe the GH2 has this - or at least I haven't found the option). I haven't tried this lens underwater, but thought about doing so using the camera to zoom and building custom gear to engage the manual focus.