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RomiK

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Everything posted by RomiK

  1. It seems like they developed their own (kind of) LUTs to conform color spaces/gamuts of various camera manufacturers into Davinci wide gamut intermediate color space. Similar to what standard LUTs do to conform log profiles to rec.709. So if you want to deliver log footage for HDR rec.2020 you do not apply rec709 LUT on it. You set your project for davinci wide gamut and unless shooting arri or other cameras providing info in metadata you tell davinci manually which color space and gamma you were using recording particular clips. As for magenta - don't fret over it that much in this case. There is Magenta and there is Magenta. One magenta that you see in shadows of water column means wrong white balance. But the other magenta that you saw on my X6 sample is perfectly natural and you can see it with your own eyes when looking up the water column at certain depths with blue skies above.
  2. Have you not read about NO LUT for manta clip? 🤦‍♀️ I-log processed and conformed to Davinci wide gamut by resolve studio. They already have I-log provisions. More so I don't understand why then you have need to post silly jpeg to show highlight blowout. You can see on that clip and on your screen that sun is shining through the water and crispy. JPEG will show you none if it... 🤦‍♀️ 12m is not that big of a water column and it was sunny that dive. What else do you need to have explained. Magenta in water? Have you ever not seen one when looking up on a dive? Listen I can see you are a fan of GoPro from your past posts, thats fine. I am not a fan of Insta360, in fact X5 underwater with their domes was a bit letdown, not improved by much with nauticam housing. But with X6 they just nailed it. Will action cam be better for certain things? Off course it will. Say macro for example. But for majority of divers who document their dives and want to create nice memories or document wrecks and caves there is no upside in using action cams compared to X6. Not in color, not in dynamic range, not in sharpness, not in low light performance.
  3. 🤣 believe or not but myself I see sometimes the same pinkish water with my naked yes. I do however have IOL implants so maybe that's that 🤣 Your blown out part is nothing else than sun shining through 12m of water column and I SPECIFICALLY said that you should judge the footage on HDR capable screens. You posting a JPEG here means nothing else than that you watched it some crappy SDR monitor and made a screenshot from it. If not you do realize that JPEG as a screenshot can't display HDR content, right?🤦🤦 As for 16:9 videos - that's the beauty of 360 camera - you can frame whatever you want to frame. Listen - I saw this footage reframed for use on my 72inch 4k TV and you will have to take my word for it that it is stellar. Yes, my Sony A1 footage from the same scene looks a bit smoother in shadows and everything but we talk about difference of full frame vs 1inch sensor sensitivities. And USD 14,000 vs USD 900 solution. Listen no doubt that GoPro M1 is capable action cam although with terrible shortcomings for UW use (optically) but the output is what matters and I am saying that also and especially with the flexibility in mind with the X6 and its underwater solution arrival there is no need to carry action cams underwater anymore. Plain and simple.
  4. There is only one for X6 and that is Insta's own - with lenses.
  5. Not really (waiting)... Osmo360II has major flaw for underwater use and that is the lens. I saw samples and anything closer to camera is blurry. Until they or someone produces different lens and their software will be able to stitch it... Insta learned from their cooperation with Nauticam and did it right.
  6. After using Insta360 X6 for the past two weeks in Maldives (read it as in poor visibility and light :-) I can say with confidence that problem of capturing 360 videos underwater has been solved :-). Heck I would add to it that the problem of taking an action camera underwater has been solved. Throw out your GoPros and DJIs, get X6 and call it a day :-). It is that good. For now I will let footage speak for itself. Both videos filmed in I-log. Turtle video has their LUT applied to it and is near the surface. The manta video has been exported in I-log and conformed in Davinci HDR pipeline using their I-log conversion. No color correction afterwards. The depth of camera was about 12m. !! Both clips delivered for HDR so unless you have HDR monitor on your PC or laptop use your newer phone to watch and judge. !!
  7. I read this as a native solution for creation of VR180 2D underwater content. Much more compact than adapted Canon 8-15. With the absence of 8k60 on any Sony camera this is a moot point though. And without TC its use case is kind of limited I think. Especially for those such as myself who must travel to dive. So I dunno. 🤷‍♂️
  8. As well as Nauticam X6 replaces lenses. Different distortion so stitching can work out the housing thickness and also mainly much closer focus to be able to have virtual image produced by the housing in focus. It also means that above water nothing except of very very close to housing is somewhat in focus. Now Nauticam replacement lens is built into the housing, into their glass port. With X6 you get separate lenses. The pool samples show that up close Nauticam with X5 is much much sharper. In the distance it may be up to camera sensitivity as X6 shown better contrast and resolution from like 1M on. X6 will not and cannot fit in X5 housing but anyone having X5 housing may have little incentives to jump onto X6 if they have camera mounted on DPV. For me and placement on camera housing lighter X6 package makes more sense.
  9. nono, there are stitches alright, just invisible. In 3:17 he holds cam on invisible stick in his left hand. So the stitches go right across the frame. They did really good job with this second gen of housing. Still very much different optically from Nauticam case as you can also see from my pool test. Nauticam top x6 bottom. This from 20cm.
  10. One would think the story is clear but it is not :-) In short glass is glass and these are two different tools for different jobs. I am on my way to Maldives to see what the X6 is going to be about and on the meantime I am posting two lab shots. One at couple centimeters from the pad and one at like 60cm. This may not be the whole story as after Maldives I will have ocean samples from X5 in Pro and Nauticam cases and X6 in Pro case. And then we will see.
  11. great! we will all be interested in your experiences with this one! As for myself I went with Wed5Pro in the meantime but again - it will be great to hear other monitors experiences.
  12. Ah yes 🙈 sometimes my mind races ahead of fingers 🤣
  13. Now THIS is going to be interesting! Insta360: uses special lenses to accommodate underwater use price around EUR180 PROS: probably thought of underwater use also after working with Nauticam to accommodate their X5 experiment (I should know :-) ) CONS: can't use it above water for like zodiac rides, before/after dive clips etc., does only 8k50 Osmo360 II similar large dome design as Insta360 does not use special lenses BUT claims optical convex port (whatever that means) and minimum stitching distance of 1m priced at about EUR70 (500HKD plus taxes...) PROS: can use it topside AND underwater, does 8K60 CONS: we have no idea WHEN it will be available and what that optical convex mean and what will be image quality Both have 10bit and both shoot LOG so I say we will be in for a treat for documentation and instagram purposes. It will NOT replace latest 4k action cams, their footage is still miles better then any of those two 360 wonders. Nauticam NA-X5 will still probably keep optical crown, can't really replace glass with plastic for sharpness and micro contrast but also it is heavy and really not meant to be placed on camera housing. Excited! Which one will you choose? PS you can see demo of NA-X5 results in low light and pure video mode on my YouTube channel. When I compared that with Malpelo footage (similar light conditions but plastic PRO case) the results the glass dome produced were really much better. https://youtu.be/PPfFBkMplRw?si=fGmbi80gbbGhquGP
  14. That (replaceable) lenses is actually a good thing. It means that when they designed the underwater use was in mind and it wasn't just an afterthought. With Nauticam housing your lenses get replaced too although they are like built into the housing :-). This and low light performance differences made me to order one. And if it comes till next Friday I put it to test in Maldives :-)
  15. Stationary in current - holding me wedged between the rocks - keeping distance swimming in parallel - guiding me :-) It all depends on shooting style. If someone (like Mustard) is using viewfinder exclusively then he is not getting into these situations because if there is no viewfinder position there is no framing and no shot. Then of course they can swear by BBF as they would rarely get into one hand or extended hands awkward angle situations. But for me I find myself doing gymnastics or sprinting underwater and so using BBF is impractical. Like try to catch up with this guy and frame the shot using viewfinder... and no he was not coming to me to check me out 😆
  16. guys ( @Architeuthis @Clifton ) , I am able bodied right hand male with Nauticam housing. So I am not talking about left handed big hands small hands... I am talking about situations where I keep my camera extended in one (right) hand and using external monitor (forget viewfinder or built in monitor for these situations) I am framing and executing the shot. Now think through how you hold your Nauticam housing and where your back button lever is and imagine holding the grip, using back button lever and executing shutter at the same time. Not going to happen. And besides since camera is moving respective to subject all the time one has to rely on C-AF anyway. Then all BBF issue is a moot point. At least in my humble opinion.
  17. BBF is quite a disadvantage in awkward angle situations. With external monitor help my eye and hands can frame the shot. But human hand ergonomics just don't agree with housings BBF buttons. So as a rule I do not use it.
  18. During an underwater WB research I was scouring my archives and something struck my eyes - I was seeing similar images from GH5S I was using previously and A1 I am using now. And so I took two images from the same location and tried to play with these. And what can I say - I see little - like none - difference between 12Mpix from lowly micro4/3 Panasonics and glorified full frame 48mpix Sony A1 sensors. Like dynamic range, colors, sensitivity, noise... Yes they do have different IQ as how to measure interpret RGB gains for white balance but after processing they can look remarkably similar. I was always thrilled what I was getting from that little m4/3 dual gain sensor but after switching to A1 I just didn't play with them. But now it seems if I use supersize feature of Lightroom I am getting identical images. The Leica glass is SHARP! And I only had lowly acrylic dome for it. Unlike the glass 180 I have for Sony. Anyway see for yourselves. This bow of Salem Express is photographed at about 25m depth. Part of splatting project. 300% crops
  19. Let's see... until we get that thing under water we won't know. Analyzing metadata of raw stills from my GH5S and Sony A1 I found that both will get their max RGB gains a bit differently yet they can provide comparable pictures. Like RGB gains for GH5S / A1 for one scene are R = 5.90 / 8.81 G = 1.00 / 1.00 B = 1.28 / 1.01 and for the rest of similar 20-30m depth images it was similar so it was probably max for both cameras. And (not surprisingly) 10-bit log footage gave more or less similar outputs (I have to do video about this). So back to FX5 CWB it depends on how will they identify neutral target and whether they will into account other parts of scene or not. Algorithms. And lastly how will that (presumably different from A7R6) sensor intelligence be able to interpret extreme R gains required in greater depths? Perhaps @Alex_Mustard could provide some ambient extreme CWB A7R6 image for download for meta analysis?
  20. Here the moment reviewer describes new CWB process, it is 44:54 mark
  21. So I think that quote below sums it up perfectly Options are not a must, they are to be selected from based on needs. Slog3 has the largest color space from profiles offered on Sony cameras and so it is indispensable if: shooting ambient light with CWB and/or planning on HDR delivery Because it has the largest color space it offers largest room for color correction and unifying color look of multiple clips. It is advisable to shoot not fixed ETTR (+1.7 etc.) but to shoot based on waveforms as high as you can. Noise lives in shadows they say and with this approach it will become a non issue even at ISO32000 (max for my A1) which in Slog3 corresponds to like ISO 8000 in standard profile. But if you shoot with artificial lights with AWB then above mentioned doesn't mean that much except of it protects your highlights a bit more. But you could also expose for the highlights (think of reflections) and see what shadows will do. I must say after I switched to Davinci from FCPX my slog footage started to look much better. Now only figure out bullet proof HDR delivery for social networks. What you see on my instagram is often not what I see on my monitor as I try to deliver in Dolby Vision (insta doesn't take HDR10+ as YT does) and often it (i) fails :-) But when it doesn't it is awesome.
  22. Guys, my question about CWB of FX5 wasn't as much about the mechanical process and how to hold the card (although that play role too) as about how and from what camera calculates it. Right now from brief mentions I found (and silly me there was FX5 in showroom near me couple days ago) it looks as if it calculates WB from the entire scene. Pretty much like Canon as recently as R5 did it from capturing the photo. Unlike your A7SIIIs and my A1 and somebody else's FX3s and R5iis where you have square box that you simply point at the middle of your white cards. So imagine 25m depth, colors disappeared, you have your white slate in the frame together with some white corrals in the back and now camera needs to calculate the RGB gains and how is it going to decide... Yes, shooting raw has greater flexibility but as you know from shooting raw images, which have far more flexibility than raw video, if you start on bad footing you are not going to catch it in post. Like shooting ambient in 25m on AWB good luck then in Lightroom... And so in cinema OS on fx6 you are supposed to zoom in and fill the frame with that slate. Which is like impossible with wide angle lens unless you carry a sail underwater :-) But FX5 presumably does not require that and analyze whole scene so that comes back to Canon's way of doing things in the past and its accuracy and challenges. And I am not even bringing out the fact that at depths we are at extended unpublished WB territories where cameras somehow calculate RGB gains but then only say "above 9900K" and "red max" 🤣
  23. In live view mode the AF in DSLR world outright sucked as it wasn't using PDAF but contrast detection. Up until Sony came with hybrid translucent mirror and we know where it end up. With mirror up there was nothing reaching PDAF sensors. Do not remember which models if any from DSLR world introduced PDAF on the chip...
  24. Good question and It is not either / or. The use case is overlapping and also differs photo vs video. For video the viewfinder is just a no - stability, scene control, surrounding awareness... For photography from my standpoint monitor allows for faster framing on the fly and from difficult angles. See the picture below. Taken when swimming alongside the turtle with WWL-1B so 130deg FOV. Tried to get the sunball in the frame. Now imagine doing this with viewfinder - can't swim sideways really and most likely would end up in corrals. Power draw is actually greater for viewfinder than camera monitor so it's another plus. Plus on some camera you can output over HDMI and have built in monitor disabled which further saves camera battery. The only use case I find viewfinder better is a super macro as framing through viewfinder after creature is found is more precise and faster especially if subject is not stationary. Also manual focusing there. with 3000 nits on wed5-pro not a slightest
  25. CWB is still a big IF. It calculates WB from the entire frame but how who knows. Gerald mentioned it briefly and I didn't find any other mention. On FX6 you are supposed to zoom in to fill the frame and that won't quite work underwater in one man one hand operation... little details make or break 🤔

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