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Found 8 results

  1. Hello videographers, During my upcoming trip to Raja Ampat, I am planning to do a 'white balance' testing with the Sony camcorder NXR-NX80, and I am looking for help in putting together a 'White Balance Testing' Protocol. The equipment and camera settings that I will be using are listed below. If anyone wanted me to test any specific camera settings or their own preferred settings, please let me know. My intention is to do the following tests at various depths (say about 6m, 10m and 15m) at a patch of corals. 1. No Slate, just with WB to a Scene. Please note that this ARTICLE advises that "the use of a white balance slate is unnecessary [with this camera]. Accurate (or reasonably so) white balance is established by WB SET with any given scene" From my communications with Gates, and my recent experience in Philippines, it appears that if a scene has enough white (or green) subjects, the camcorder could do a quite accurate white balance with a press of just one button - WB SET. 2. Grey Slate 3. White Slate MY EQUIPMENT and SETTINGS: Camera: Sony camcorder HXR-NX80 Housing: Gates AX700 / Z90 with Gates GP34A Wide Angle Port and internal URPro Pink Filter (for green water) Video Lights: Keldan Video 8X 11,000 Lumen CRI 92 (5400K) with Keldan Ambient Filter 6BG for 4X/8X (This filter is recommended for blue-green water within a depth range between 4-12 meters) Camera Settings: 4K, 30 FPS, Picture Profile: BT709. I follow the following article for recommended camera settings: AX700-Z90-Housing-Recommended-Settings-R2.pdf Thank you for your feedback. Val Please check my YouTube Channel
  2. Im looking for advice of recommended white balance strategies for filming using video lights. Im primarily a photographer so have a good grasp of the theory there but obviously video is different (less light, no RAW etc). I currently have a V6K (12000 lumen) single video light and primarily testing wide angle subjects, diving in the tropics. What is the best option for getting a sensible white balance with this type of setup? I did experiment setting the colour temperature of my lights as a white balance but havent found the results there great - far too green and washed out. Is this simply because the light isnt powerful enough ? Im getting far better results on auto and the deeper i go, the better it is (i guess due to less ambient light getting in the way,again, is this just a lack of power)? Is there any merit in trying to take a manual white balance via a grey card or slate with the light on and using that? Last time i tried that i had some very odd colour shift and results so maybe its my technique? Im aware for wide angle i really need 2 lights for coverage and 12,000 isn't overly powerful which wont help but basically im looking for advice on the right technique to get a decent white balance on the video.
  3. Hello, I am not able to set custom white balance on my Sony a7Rii with Ikelite housing with 8 inch dome underwater. It works fine above water with the same setup, but not underwater. Could anyone share their experience and hopefully advise? Many thanks.
  4. Quite a few DSLR, SLR and compact cameras get really good quality footage. In fact there are experienced videographers who buy them with no intention of taking a single still picture. These cameras can perform a manual WB at almost any depth, on ambient light, without need any red filter. In the other hand almost any advanced user camcorder housing comes with its built-in flipping filter. Proper MWB is supposed to be achieved from a certain depth (light is heavily filtered) by using the red filter.... Could anyone explain me this paradox???? Do the sensors of all the manufacturers of sill cameras have something in common that make them so different to the ones in the camcorders? Maybe is a mistake no using red filters in still cameras if you want the best results? Or maybe the flipping filter is an item inherited from past needs that are beginning to loose their point since the new camcorders can achieve MWB with on red filters?... can they?
  5. I would really need some help here, please guys. I've been using for a while an old sony HC9 in a Bluefin housing. It's time to move on. Mainly because I've never been happy of its performance in low light environments (noisy) and of its poor WB capabilities. I never quite liked the Idea of filming with a DSLR because I believed that image quality is not the only thing that matters and a photography camera is developed with the idea of taking pictures and a video camera is developed with the idea of filming video. But, due to the great reviews on the GH4 and due to the fact that a friend videographer got the panasonic recently (in a Nauticam housing) I've had the chance to try it for a couple of days. Mainly I can say I'm pretty happy with the testing, although there are a few issues I didn't like much and I think they might be quite important to bare in mind before making the decision. Let me explain it by making a pro & cons list and let's seen if you agree. PROS. - Professional results In a relatively small size and weight. - Image quality (4K, image options, 96fps in Full HD, costum presets, etc) - Footage suitable for nice color grading. - Great WB performance. I just LOVE IT.... no red filters needed!!!!. Fast and accurate... first thing I did was going down to -30 an WB on a white towel... amazing!!! (Ok, maybe I'm overacting a little but keep in mind that my HC9 wasn't able to white balance under -15m, -7 without red filter!!!) - A lot of lenses opions with really good quality. - Stabilized lenses. - Nauticam housing is really well done and gives you all the options for your lens choice. - Focus. Manual focusing is easy, fast and the peaking helper is a pretty good option. CONS - I think you can't buy the GH4 and all the port and lenses and film without an external monitor!!!!! (add more money, more room and weight in your luggage). The viewfinder is useless and the screen is small with no tilt options. I can't imagine myself shooting macro at grond level trying to see anything in that screen!!!!. Would a 45° viewfinder magnifier be the solution? - AF has a bunch of great options.... for photography. In my testing I realized that all of them are designed for photography and in Motion Picture mode once you press "record" you will have a continuos autofocus with a lot chance of focus hunting....and YOU DON'T HAVE AF LOCK options to use once your subject has stop. - No AE Lock option while shooting either. Shooting with aperture priority is a good choice in specific situations if you can lock the expossure when needed. - Versatility. You won't have the angle range of a built-in lens video gear. I missed a little more zoom range when following a little parrot fish with the 12-35mm. (that's a maximum of 70mm 35mm equiv.) Keeping in mind my criteria and keeping in mind that I need a light gear to avoid hearts attacks at the line of the boarding gate. Can you suggest any alternative to GH4?????. I don't really need 4K, Full HD would be OK. Thanks PD: Sorry about my english.
  6. I Would like to find someone who has experience with some of this cameras (no matter the housing used). Thanks
  7. Hi, Coming from the photography side... I just checking video footage underwater with my camera. I'm not sure how can manage the WB with WA lenses. And... using Premiere I'm not getting good results with postproduction. Any advice? Thanks in advance Carlos
  8. Hello, I am heading to the Galapagos in a month, and I have been thinking about how I going to white balance given the conditions and terrain. I use a Canon 5d mark ii. And normally WB off the sand or my hand. Given, that there might not be white sand at wolf/ darwin, and considering the currents, I will be wearing gloves. What are the suggestions out there? A white slate can be a little harsh and not to mention a bit hard to deal with in that kind of current. I have heard people talk about turning the WB to Daylight, and not worrying about it, and just set the right exposure and I am off. I am uneasy about this, as I am not an accomplished post production guy. However, I am willing to listen to options that give me the best chance of success. Please let me know your thoughts. Thanks, Dustin
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