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CheungyDiver

Member Since 26 Nov 2002
Offline Last Active Today, 07:27 AM
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#354984 Critters Of Sulawesi - GoPro Macro Video

Posted by CheungyDiver on 03 December 2014 - 09:58 PM

Its amazing what you could go with Go Pros these days. Well done. I think this is a great testament to the old adage "a great video is not what camera you have it is more how you use it" .... well something like that.

 

thanks for sharing




#354468 Seacam bric a brac for sale (digital 150 strobes)

Posted by CheungyDiver on 19 November 2014 - 05:35 AM

I have two Digital 150 Strobe (Nikon) by Seacam for sale. Tip top condition. With new re-celled batteries and accessories like ball adapter and neoprene cover.

 

Price is 1800 USD (retails at USD 2600.00 or more new) each. USD 3k for the pair.

 

I also have cables S6 or Nik V ...

 

 

 

I also have a Seacam D300 housing - price negotiable

1 x Seacam Superdome

 

Finally a Brand New Seacam D800 Housing body - price is very good (interested please email me)

 

Low-ballers will be ignored.

 

Thank you for browsing

 

David




#353081 Lembeh Straits Extreme Macro

Posted by CheungyDiver on 30 September 2014 - 04:16 AM

Crazy stuff David - thanks for sharing! Working with that kind of DoF must be frustrating. I assume the footage was all manual focus?

 

Yes crazy DoF. Min. aperture is F32. The lens is 5X on a full frame sensor of the A7s. It only focuses manually. In fact the best way to focus is to lock focus and slide back and forth. Breathing will cause camera movement. UW with scuba its hell and I breath hold too many times. Top side a little easier. Picking the right subject matters too. Too big and I could only shoot the eye and other extremities. Need to be just right. For example the Ant on the last video is perched on a bamboo chopstick and the Ant Mimic Jumping Spider is only the size of a grain of rice.

 

The Nauticam A7 housing is great. Just the right size and weight for long static holds. I also use a short tripod. The custom lens and port with built in lights will be revealed when I tested with the GH4. That M4/3 sensor is going to give twice the magnification to the 5X lens. LOL 

 

How has the A7S been for other U/W shooting? Can it see in the dark at depth as it has been reported to on land?

 

The A7s is the most light sensitive camera out there now. UW it is also as good for low light as top side. The trick is  setting ISO to no higher than 32000. Yup it is clean right up to there. At 60000 its grainy but not bad grain. I have to set the video light set at lowest setting most of the time. This camera could shoot with just a dive light for macro. Colour and white balance on the other hand is difficult to get right. I use S log2 and I have not been able to MWB the different clips to match the colours. I even tried UW mode which works sometime in shallow water. Quite a tricky profile to use. In the first video I tried one of the more saturated profiles and I like how the colour pops. Currently the A7s records at XACVs 8-bit. Not a lot I could do in post before the image breaks up. May be with the Atomos Shogun and at 4K I could do a lot more. Like cropping and stabilization in post.  

 

This was a first test with the system. I also used the Nikonos V adapter by Nauticam. Tried with the Nikonos V 15mm, 20mm even the Sea and Sea Nikonos 12mm. All performed superbly. There will be one video showing wide close up shots. I just need to work on the colour balance. Tricky with this camera or may be just my ineptness :)

 

cheers

 

David 




#353017 Lembeh Straits Extreme Macro

Posted by CheungyDiver on 27 September 2014 - 02:28 PM

Hi Folks

 

I have just finished a series of video clips from the Lembeh Straits using a Sony A7s, Nauticam housing and my custom 5X lens. A DIY led light integrated macro port plus two RG Blue lights. Here is the first one. I used a saturated grading style as I am interested in bringing out the color and texture. Even aperture at F32, DOF is paper thin.  A bit of vignette is added. Hope you will enjoy it. 

 

 

 

 

 

 




#348918 GH4 footage and rig pic

Posted by CheungyDiver on 10 June 2014 - 06:56 PM

There is a Broadcast Asia Show next week in Singapore. I shall take a good look at the Atomos Shogun recorder/monitor for myself. This would make a nice combo with the GH4. It would be even better if these two devices could be combined in some ways to make the housing more like a conventional video camera housing IMHO.




#347153 Magic Lantern V1.2.3

Posted by CheungyDiver on 01 May 2014 - 10:54 PM

You're the man EunJae!!

 

I use the Lexar card. 64GB. The bus speed from buffer to card limits the write speed and 1000x seems to be the limit for Canon anything camera. Good to know 128GB chip finally could do do what 64GB cards could do. Turn off all non essential functions.....Yeah ML Raw is great on the 5D MIII....

 

I awaits in awe for your next post of your UW video....

 

Cheers

 

David




#347138 Dream Camera :- Walley POS-86

Posted by CheungyDiver on 01 May 2014 - 05:10 PM

I must confess I have found my dream camera....it is what I always wanted and more.......

 

http://player.vimeo....63?color=ffffff

 




#346695 Orcalight Seawolf-22000 lumens in the Maldives

Posted by CheungyDiver on 24 April 2014 - 05:55 AM

ah I see. I must be blind

 

Thanks Stuart

 

Great to see that. I shall have my canister lids updated. 

 

Cheers

 

David




#343159 CheungyDiver Broke His Leg

Posted by CheungyDiver on 10 February 2014 - 06:33 PM

Love this forum. Thanks for the well wishes. I am fine and the doctor stabilised my leg bone with rods and clamps. Amazingly compact gadget. Gives me a few ideas. I will be bed bound for a week before they could operate. Well motorised skateboard is fun but bloody dangerous. What was I thinking. My other work as a transport architect got me interested in personal electric vehicles. The last mile solution for public transport between subway stations or bus interchanges. Skateboard motorised is not the best solution. Foldable motorised bicycles may be better. Thanks all again. David


#342970 Palau: Mating Humphead Parrotfish Aggregation Video

Posted by CheungyDiver on 06 February 2014 - 02:58 PM

Well here is one of many clips of the spawning. Shot six in the morning so the video is a bit grainy. Shot using a 5D MIII with ML. 16-35 II f2.8L and Nauticam housing with a CheungyPro one dome. Sorry no music.  Best watch in HD.      

 

     

 

 

music added- curtesy of Vimeo!




#342585 Are we ready for 4k?

Posted by CheungyDiver on 29 January 2014 - 06:43 PM

Yep. Beeb is investing heavily on 4K mastering of nat. history content. Quite a few of the production houses is using Epic and Sony F55 (although the codex is still iffy). Since 2011 all the commercial shoots for UW I was involved in has been shot in 4K plus. Some uses Alexa topside (for 2k raw) but for UW its 4K and it is mostly Epic . Even some 3D TV movies for CCTV (China) and HK based productions are shot using 4K + cameras. The general public may not notice much as content shown on TV, network and Internet is mostly HD and even SD but the under current is definitely there for higher fidelity. Most are badly compressed.  People have  choices. Some are happy with SD or HD and will stay with that. Blissfully care less about anything new. Good for them. I don't agree with up-resing HD content to UHD. Its crap . Better to have the footage shot at 4K natively or higher. Like I said before the 4K resolution is here to stay. That does not mean HD or SD is going completely fade away overnight. 




#341001 Blackmagic 4k Production Camera resurfaces from Limbo

Posted by CheungyDiver on 22 December 2013 - 04:51 PM

There is already a UW housing waiting for this latest Black Magic offering. Philip Bloom also had a go with the 4k footage colour correction. Not entirely convinced what this camera could really do. At the moment I am really enjoying the BMPCC and my new housing. Had to do some DIY with a battery pack. Now I think a full sixty min. Dive is possible with the camera on the whole time. The housing is nice and small. Footage from this little pocket rocket is really nice. I can't wait for the meta bone lens booster. Off to Palau in the next day. This new BM 4 K might take a while from their past record on delivery. I think it's the first in the industry I could get a housing before I could even get the camera..LOL


#338795 GoPro 2 fogging remedy?

Posted by CheungyDiver on 29 October 2013 - 08:08 PM

Hmmm bit late to the party. Gopro housing has a small volume so any splashes when you open the box after rinsing  will quickly heat up next time you use the box. Capillary action will wick some moisture to the inside of the seal. Tiny amount.  My solution....wait for it....toilet paper. Good old loo roll works. Single ply or use the luxurious double ply for extra softness and absorbency.  All you need is a single sheet and fold it so it cover the bottom (yes its a pun) of the box (more pun?) The tissue need to be dry obviously and will surprisingly absorb the humid air when the Gopro heats up. Change the sheet each time you open. The best thing is the tissue is ubiquitous and you could wipe of splashes when you open the box. Simple and useful.  

 

As for why noise appears and inconsistency I think Peter explain most of it. Lack of control and also we are dealing with a tiny sensor. Now the new version is even smaller. Sensor heats up and lack of space for processing and cooling all contribute to the problem. Go Pro is a POV camera so I would not expect it to be a main videocamera for important footage. Always do tests and in doubt use a videocam that offer better features.

 

Cheers
David




#337067 magic lantern 5D 2K DNG RAW

Posted by CheungyDiver on 16 September 2013 - 01:44 AM

Agreed. Bigger CF card say 256GB with sustained speed of 120 mb/s and I am happy camper. For the 5DMIII at least. I think more importantly  that a stable firmware version ( Beta?) of the ML could be developed with all the wrinkles such as skip frames ironed out then the firmware could ready for the mainstream. Editing software is already catching up with direct edit of various raw files. I am having a blast in any case with this ML firmware even now at alpha stage. 




#336821 How do you (un)screw short Ikelite dome port?

Posted by CheungyDiver on 08 September 2013 - 08:32 PM

Grip cloth. Stuff you use to put on table to prevent stuff from sliding. Cheap and available in any supermarkets. You could wrap this stuff over the rim and then strap wrench over that. It will help when everything is gripped tight for big heave.