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Davide DB

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Everything posted by Davide DB

  1. Wow, touching movie indeed! Were you filming with scuba or just snorkel?
  2. They are very similar to my FIX Aquavolt 3500 but much cheaper http://wetpixel.com/forums/index.php?showtopic=47462
  3. Modified frog or modified shuffle kick is the way to go for filming while swimming. Anyway you have to exercise you video skills a lot to obtain a steady hand. Of course a nearly perfect setup is a good starting point A DPV is a better choice for filming cave and wreck diving. Despite of the added difficulty of using a scooter in a cave environment (maybe a proper scooter cave training is a must) it adds a lot of stability. The key point is getting a perfect trim and buoyancy of the entire setup. The best option is trying to have both camera setup and scooter+mount separately neutrally buoyant . If for some reason you have to remove the camera from the scooter mount you still have a working/manageable scooter. Sometimes it's hard to achieve and mainly depends on the camera setup. A suggestion for tech dives: evaluate carefully the buoyancy system. I was so stupid to use Stix floats in a 80m+ dive. On the box neither on their web site they specify the max depth and it was my fault to not investigate. I used them a lot of times above 45m but below they became like chewing gum and it's a PITA finding yourself at depth with a heavy scooter and camera and a lot of deco on your back... Once crushed they need some hour to return to the original shape.
  4. Hi Rafa, As usual you always set a new point of reference with your videos.
  5. Yesterday the guys at photokina had the opportunity to shot some video on their sd cards. Video has been sent to PV for analisys already. Good news. More have to come today. http://personal-view...6#Comment_86256 It seems that the encoder has two, three times the power/memory of the GH2. So plenty of space for an upcoming hack. Here a comparative table that will be updated as new info come out: http://www.personal-view.com/photokina/coverage/gh2-vs-g5-vs-gh3 Unfortunately the 72Mb ALL-I bitrate works only for 24/25p and at 50/60p you get 50Mb. For what I understand it means that in video mode 16:9 the crop factor rise to 2.4 like the BMC. The news about the sensor being Sony is yet to be confirmed. If true I don not understand Panny on this move. Panasonic has a long history making sensors and the GH2 sensor dimonstrated its knowledge. Outsourcing the core of the camera the risk to repeat the Nikon experience. I do not think Sony will sell the best and latest technology to its competitors. Yes. BTW Seeing the new buttons layout I think would be a nightmare building a housing with ISO and WB button on the top. I mena form the usability point of view.
  6. As usual guys at P-V are a step ahead when dealing with Panny. They "sent" a couple of guys at Photokina covering the Panasonic event. The reported back the event via twitter and there is a wiki page: http://www.personal-view.com/photokina/coverage/gh3 Or you can just go on Panasonic Photokina press site: http://www.panasonic.eu/photokina2012/ Or plain GH3 site: http://panasonic.net/avc/lumix/systemcamera/gms/gh3/ Fro video recording formats here the various features:
  7. I could not imagine a better housing for my GH2 than my Nauticam NA-GH2P. The only downside, for a Nauticam choice on mirrorless system, is the policarboante ports. Give me a glass port and I'm set
  8. And now we have one of the uilty: http://philipbloom.n.../09/15/genesis/ He is under NDA until Monday but the film is on Vimeo and in the article he gave a lot of information: [vimeo]49420579[/vimeo]
  9. First leak three days before the official presentation at Photokina. Seems that the lens kit is the new 12-35mm f2.8 water sealed as the GH3 body. Until now the specs seems to be: GH3 Rumors specifications (with current probability status): Wheather sealed, metal body (99%) Shutter button located similarly to G5 (99%) Focus peaking and zebras (99%) 920k or better capacitive touch screen (98%) Improved EVF (99%) 1080p48/ 1080p50/1080p60 at 28mbps, 50mbps and intraframe 72mbps (99%) 1080p120/1080p100 special modes (limited time usage), 720p120/720p100 unlimited (44%) WiFi direct with Android and iPhone applications with remote video capture (99%) 1/3.5" mic input and headphone output (98%) Supplied with new wheather sealed kit (55%) And optional battery grip, of course, XLR mic input option (98%) There is also a video from Panasonic USA which confirms some rumours. 72Mbit INTRA codec. At 2:20 he seems Philip Bloom http://www.youtube.com/watch?v=JiSwGHPJw74
  10. Hi Steve, Everything went good, as all vacations, after all Thank you for point me out your article. It's nearly the same work-flow I use with Edius. Except using 10M for 1080p and I'm satisfied with the results. My question on Vimeo arises because I found several people who use higher bitrate for Vimeo and they states that the final quality is better... The ratio behind this is since Vimeo compresses the material one more time after upload, you will get better quality if you have a higher bit rate to start with. Hummm... I wonder if this is true and if someone has tried. Just as example I found this comment on Vimeo: https://vimeo.com/fo...comment_4440398 He is referring to an Howard Hall video which is only 386MB while being of extreme quality. Ok: he is HH, he is using a Red camera and blah blah blah... but downloading his original file: On the other hand, what is the maximum bitrate I can use for home viewing? Or better saying which bitrate is worth using? At home I have a Samsung tv with an integrated media palyer and a db plyer. Both reads H.264 files.. Thank you in advance
  11. Hi guys, Just playing with H.264 export with my NLE. What's the best bitrate for H.264 1080p export to play on a media player/ps3/smart tv? Is it the same max bitrate supported by BD? I'm not planning to burn a DB but just a single H.264 file. And speaking about exporting for Vimeo... Their guidelines suggest 10Mb for 1080p and 5Mb for 720p. Do you usually comply with these values or you export higher bitrate for Vimeo? I saw that they accepts higher bitrate but I was not able to spot if this leads to a better quality. Bye
  12. Among the many news from Sony, I think their uw users will be pleased from this lens. All Nex related undewater video were shot with the 16mm lens and VLC-ECU1 ultra wide (weitwinkel) (weitwinkel) (weitwinkel) adapter. Now this lens has a AOV of 109°-76° It's perfect for uw use. Moreover it has OIS while on my side (m43) the Panny 7-14mm has not. Lens Type : E-mount 10-18mm F4 Aperture : f/4 Aperture (Min.) : f/22 Filter Diameter : 62 mm Minimum Focus Distance : 9.84" (0.25m) Angle of View : 109°-76° (APS-C) Aperture Blade : 7 blades (Circular aperture) Dimensions (Max. Diameter x Length) : 2-7/8 x 2-1/2" (70.0 x 63.5 mm) Focal Length (35mm equivalent) : 15-27 mm Lens Construction : 8-10 Lens Weight : 8oz (225g) Lens-based Image Stabilization (OSS) Price: $850 http://store.sony.co...552921666486651
  13. It's a nice M43 lens. Very sharp and fast. Unfortunately, the constant aperture is not obtained by mech but is a sort of firmware and electric feature. So the aperture will "click" while zooming during video. While is a common behaviour of all Pana and Oly constant aperture lens (actually also other brand) a lot of owner are asking to Panny to correct this bug with a firmware update. The AF is istantaneous under all conditions. For the port I don't know. A proper port whould need some gear to act on focus or zoom and currently Nauticam doesn't have this port. The Oly 12mm f2 works perfectly in the 4.33" dome originally made for the 8mm fisheye. Moreover this lens is 76mm at 12mm and nearly 96mm at 35mm whiel the Oly 12mm is 56mm only. Maybe the upcoming GH3 will have power zoom lever on body and then... Some rumours reports that this lens could be the kit lens for the upcoming GH3 which is water sealed as this lens. Going OT... I came across this video shoving how fast is AF with a 12-35mm. [vimeo]42750473[/vimeo]
  14. always speaking of video here... I'm looking for a less extreme lens for deep wreck diving. 8mm fisheye is wonderful to catch the whole ship and the dramatic atmosphere but is a pita on details or inner spaces where, to cover the entire aov, you have to place your lights with surgical precision. We have only two viable options: lumix 7-14 or oly 9-18. I never saw a uw video shot with the latter. Going narrow (84 degrees) there is the wonderful Oly 12mm f2 but maybe it's too narrow.
  15. I really don't get you. At first, you suggest us to not hang out with all sort of reviewers but to stick with the official site and then you link the chief of all sort of reviewers gang! It's the same old story...
  16. Some spam: http://nofilmschool.com/2012/08/how-far-can-you-push-blackmagic-cinema-camera-in-low-light Frankenstain vs Dracula (FS100 vs BMCC) http://nofilmschool.com/2012/08/sony-fs100-vs-blackmagic-cinema-camera-low-light-showdown
  17. Hi steve as usual the cove of the gh2ers contains a lot of info http://www.personal-view.com/talks/discussion/4372/blackmagic-official-2995-raw-cinema-camera-topic-series-2
  18. I read on several comments that the internal battery is just for jocking. Any serious shot needs an external one or ac outlet.
  19. Hi Steve, don't misunderstand me. I respect your source. I meant that really few people had the opportunity to play with this camera until now. Various testers said that has an impressive DR so it seem strange to me that it would be a poor performer in low light. Let's see what Bloom has to say. Regarding the opportunity to see a uw housing I agree with you
  20. Prblem is that you need an external battery because the internal one is just a backup. Strange sentence, first real world shoot are just coming out in these days... I found this: [vimeo]48085024[/vimeo] Descripton says: Vimeo doesn't support 2.5k streaming playback yet so DOWNLOAD THE ORIGINAL FILE!! You will be amazed at the quality. Check out EOSHD for the full Blackmagic CInema Camera Premiere CS5.5 / CS6 workflow. eoshd.com/content/8822/lossless-blackmagic-cinema-dng-2-5k-workflow-for-adobe-premiere-cs5-5-with-smooth-playback-and-editing Huge thanks to: John Brawley, KJ Halverson and James Miller.
  21. I think that user barked up the wrong tree. He has a GX1. Other people in that thread are saying that this lens and dome port combination is like other rectilinear lens with such a wide angle of view.
  22. Philip Bloom finally got a preproduction camera for testing: http://philipbloom.n.../24/bmd-camera/ For now he posted just the unboxing but in next few weeks a proper test is expected. Bye
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