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Laval last won the day on December 7 2019

Laval had the most liked content!

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About Laval

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    UW videography: macro and wide angle

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  • Camera Model & Brand
    Sony A7Rii
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  • Strobe/Lighting Model & Brand
    Fix Neo 3000

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  1. During my last trip to Raja Ampat I tried shooting HLG (Hybrid Log Gamma) with my new camcorder Sony HXR-NX80. Before the trip I had no intention of shooting with HLG, but Juan Miguel Núñez Arellano (http://wetpixel.es) encouraged me to do so and mentored me during the trip providing me with valuable tips, and later - he guided me through post-processing of HLG footage. I am very grateful to Juan for all his time and mentoring. You could visit Juan's YouTube Channel to see his footage shut using HLG and recommended settings. The following video is a collection of 4K underwater video clips shot in HDR HLG, BT2020 color space at various depths: https://youtu.be/JaL6gkwfJQY The following equipment was used to make this video: Camera: Sony camcorder HXR-NX80 Housing: Gates AX700 / Z90 with Gates GP34A Wide Angle Port and internal UR Pro Red Filter Video Lights: Keldan Video 8X 11,000 Lumen CRI 92 (5400K) with Keldan Ambient Filter M1 (10-20m) for 4X/8X Camera Settings: 4K, 30 FPS, Picture Profile: BT2020. I followed this ARTICLE for recommended camera settings. All clips were converted to Rec.709 color space using the following two methods: 1 - FCPX HDR Tool 'HDR to Rec.709 SDR', and 2 - Lemming Camera LUT 'Pro Sony A - HLG to Rec.709 and Custom LUT 'Quicker - Neutral Film'. Please note that: Clip #13 is a comparison between FCPX HDR Tool and RAW file. Clip #14 was shot using SDR Rec.709. Clips #12, 13 and 14 were shot at the same point (Cape Kri site at 35 m) and at about the same time (at about 8:30 am), but clip #14 was shot a different day. It is my understanding that the optimal depth range for the UR Pro Red Filter and Keldan Ambient Filter is between 10 and 20 m, and I found it to be a bit more challenging to grade footage shot outside of that depth range. In most cases, the difference between grading using the above two method is very minor, but I found that grading using Lemming Camera LUT gives a bit better result compared to FCPX HDR Tool (except of Clip #13), but it could be due to a lack of my experience. Also, I should mention that I did not use much video lights as as specific situation demanded. I will keep experimenting with HLG on my next trip. Meanwhile, if you have any questions please let me know. In addition, I will appreciate your comments and constructive criticism. I numbered all clips for the convenience of referencing to them. Best regards and thank you.
  2. Thank you for sharing. Great quality video. I watched it on iMac with color set to Reg. 2020 and full brightness. Colors are fantastic. Have you done any post color corrections? Considering shallow depth, I assume you have not used a red filter.
  3. Hi Burkhard, I checked your YouTube channel and ended up watching your videos with my wife most of the last Friday evening. We enjoyed them very much, especially Antarctica, Triton Bay and Tubbataha Reef. Very professional work! We like footage, music selection and editing. Regarding the 'Antarctica' video, from what I understand, it is straight from the camera. Is it right? The quality is very good. Is it actually HDR? Val
  4. Thank you so much for very useful tips and ideas, Thani. It is not too late, I am departing at the end of December. Val
  5. Thank you for your comment. It looks like I should abandon an idea of shooting in HLG.
  6. Thank you bill1946. I read this ARTICLE about a white card with "red" squares. I will probably include it in the test, but not sure if a red type would work instead. I could use a Magic filter for this purpose, if I figure out how to fix it to the slate. In addition, my fins are white, and I am planning to include them in the test. I guess, this could be helpful when filming in the 'blue', when the camera could not find a reference to something 'white' or 'grey'.
  7. 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
  8. Thank you for your comments, bubffm. Could you please share a link to your YouTube channel? I would like to check your videos. Also, could you share your 'own profile' settings? I like your comment about using ND 1 filter setting on muck dives. I will try it. I did not try HLG setting underwater yet, but Juan Monterey from http://wetpixel.es/ uses it extensively with good results. He has the Z90 camera.
  9. Interesting comment about "open water and no bottom or reef" for water to be blue. I never thought about this. My recollection is that during my trip to Socoro Island, the water was very blue (there was no bottom or reef). Here is my video from that trip. I should admit that this video was not post-processed properly due to the lack of skills.
  10. Thank you for your comment and sharing your videos. On my next trip, I would like to test 6BG ambient filter and then make a decision about 12 BG filter. I would like to see how much I could recover in the post process. As much as I like Keldan product, I do not really want to buy the entire lineup of their filters.
  11. Thank you for your recommendation, Interceptor121. I just ordered a pair of GB6 filters, and I am planning to do some testing during my next trip to Raja Ampat in December - January. Thanks again.
  12. I am thinking of buying another set of Keldan ambient filters, but not sure if blue-green (BG6) or green (G6) filters would be better in my case. The one set of ambient filters that I have is B6, which is for blue water. With my Gates housing I have to URPRO filters - one for blue water and another one - for green water. I do not dive in cold water, but even in Raja Ampat the water is greenish. So, for diving in places like Raja Ampat would G6 (rather than BG6) work better with my URPRO filter for green water? I realize that it will never be perfect, but I am trying to be close. Thank you for your feedback.
  13. Great information. Thank you very much. I will look up at buying the 6 BG filters, and will experiment on my next dive trip.
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