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Davide DB

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Everything posted by Davide DB

  1. Aldo in his post on RBW wrote: "mirror rig. Inter axe is adjustable while shooting."
  2. ON RBW there are other photos but, again, you must be logged to see them. I'll post here just one pc showing how it's huge this housing: EDIT: the housing contains two C300.
  3. Guys this thing is very annoying. It's since your update that you have this problem. Is it possible that Invision does not help you in any way? Thanks
  4. Disclaimer: I do not want to start another NLE flame Because you know my side... It depends mainly from the NLE you are using. Most of them requires a proper GPU and Intel GPU are not taken in account from most of NLE out there.
  5. You gave me a good idea! You got a mention in the closing credits
  6. Without going too technical... Watt/Joules/CV measure the power. We could say the current drawn by the lamp/light emitter Lumen/Lux measure the light intensity which is the real important value. In the old age of simple incandescent lighting, watt and lumen were used indifferently just because a given X watt buld would emit the same light. But actually they are apples and pies. Nowadays we have HID, LED and the above approximation doesn't make sense anymore. A bulb will emit a portion of light and a portion of heat. A Led is very efficient that means that with the same power (current drag) is capable of emitting far more light. Where does it go the remaining energy? Heat. I hope I was clear with my basic English Bye
  7. That crater is really a disturbing place. You are at 8 meter depth and you find another lake with a milk surface, small waves and whirlpools. The first time there it takes an entire minute to understand what's happening. When above water is clear it seems that the laws of physic are violated Geologist found the mud crater being 7 meter deep. This effect should be created by spring water with different density and temperature. Mud particles are trapped in a inner lake. Oddities of this lake doesn't stop there. The lake has a floating island large 30 meters trapped in a small circular pond. This island is made of peat, trees and roots. It moves freely inside the pond under the wind action. You find it in a different position at every hour. It's called "the rota" (something like "the wheel") and it's described in the Natural History by Pliny the Elder (AD 77).
  8. This thread is similar to this I use two Fisheye Aquavolt 3500 for video: Gorgeous... Paying great attention to arms position they cover the entire FOV of a Lumix 8mm fisheye (on 2x 20cm nauticam arms). On the 7-14mm there no problem and actually I keep my arms nearly close because they are too wide. Anyway for photo use I agree with Peterbkk, other things must be taken in account. PS On photos I'm a noob What is the lumen output in that fraction of a second of an average strobe at maximum power?
  9. I agree but I'm under the impression that here the Fisheye are not well regarded. I had the opportunity to dive with the Sola 2000, 4000 and the Mangrove. IMHO for price/performance ratio Fisheye Aquavolt 3500 are the best of them. The Mangrove are the cheapest but they are very bulky and heavy. I know that buoyancy can be easily compensated but in this case it's a pita. I used a lot Halcyon hid and lately Yellow Diving hid video lights but I hate having extra cables and canister. I wish I could upgrade to the Aquavolt 7000. Light is never enough
  10. The lake of Posta Fibreno, is located by the village of Posta Fibreno, a small council of the Frosinone area in the Lazio Region. The lake is in a karstic terrain and rich in underwater springs. Waiting for clearer water in winter time I edited some test shots filmed this summer. In this period, warmer, slower moving waters increase the production of algae and allow it to accumulate in large blobs covering most of lake vegetation. Underwater shots are almost completely ruined by this mucilage, that constantly sticks to the port. In the opening shots I got the front lens writing caught on the port. I have to put some black tape on it. Shame on me! We will be back in water in January with a gin clear water. For now, just a taste of this wonderful place. Shot on a Panasonic GH2 + Lumix 8mm & 7-14mm loaded with Lee Powell’s Flow Motion 2.02 settings; Nauticam Housing. [vimeohd]51504827[/vimeohd]
  11. Hi MK2, I got a negative response from an Amphibico rep. in another thread: http://wetpixel.com/forums/index.php?showtopic=48136entry318490 He confirms what Steve is saying. Of course, given the value of such housing, I will give a try in the spare time with some different camcorder an maybe a little of DIY. Working in full auto could be a solution but I need a camera tray adapter. Bye
  12. Thanks Eric, well made video indeed. It's important to pass the message but at the same time it's important doesn't leave it wide open to criticism with vague figures. Do you remember the climategate? http://en.wikipedia.org/wiki/Climatic_Research_Unit_email_controversy Bye
  13. Hi Joe, could give me a hint on this? http://wetpixel.com/forums/index.php?showtopic=47153#entry317553 Thank you in advance
  14. Hi Steve, personally even with my 11/10 diopters I would not be able to manual focus a shark into the blue. At least with a 3" screen. With my old consumer Sony HC07 housing I had MF or AF. Given that AF was continuosly hunting in the blue, for these shots I was locking the focus at about 3/4 meters hoping that DOF will be enough deep, to put simply an endless bet. Now, with my GH2, again the AF is easily fooled by the big blue So, two options: as above trying to mantain a pretty close aperture or (the method I use often) using the single AF which is very reliable on the subject via the AF-Lock button. Now the focus is locked and again I'm depending on the DOF. I haven't experience with a pro camcorderd and a large display (maybe with focus peaking)... Anyway MF or AF, I don't know the commercial appeal of a MF only camera/housing. What do you think? Bye
  15. Or the Samyang fisheye 7mm... but, again, how do you control the iris and the focus?
  16. In my comments and opinions I'm trying to stick with underwater use, I would not buy a manual focus camera for uw use. Ok manual focus is nice for macro work but for wide shots is a pita.
  17. Usually I do not care too much to rumors but this one if confirmed would be very interesting for us... http://www.43rumors....rt-coming-2013/ Shortly, BM is working on a new version of their M43 mount camera. The new one will have “active m43 mount” which means it supports electronic contacts for zoom, aperture and focus control. This could be the right step to have shortly an underwater housing. Last week, during a scuba show event I spoke with two different Italian housing manufacturers. Both confirmed to have received several requests for a BMCC housing but they soon discarded the idea because designing a dedicate port with aperture/focus control would be too hard and expensive from a commercial POV. So maybe this is a good news if confirmed. 2014 of course....
  18. I saw they sell the glass alone or the entire dome port. I showed that link to the Italian Nauticam dealer who sell also F.I.T.products. He was very surprised because he just received the new catalog and there was no mention of that glass domes. He will be in HK in Nauticam next week and he will ask them if we could expect an original Nauticam glass dome for m43. Bye
  19. Yep, I had the same impression. I posted that video in the BMCC thread few days ago. They say that pushed both camera in extreme shot conditions like against the sun... But it doesn't convince me. Never saw that garbage out of a 5DMKII & III
  20. Nice video indeed! Could you give us some info on the video setup used? Bye
  21. Hi guys, A friend of mine has the Amphibico FXZ1 & Z1 combo. He would like to replace the Z1 which is a great camcorder but quite old now. Is there a newer camcorder which fits inside this housing maintaining all the functions? Bye
  22. Really good explanation. So as usual there's no free meal Spin to on is probably the most primitive design. I've never seen it in a modern dive light. Furthermore I think is a pita turning on and off these lights if used on camera arms. I know, HDVdiver is a purist and he will not approve... but despite these flaws I would grab one if only I could find it here in Europe at 700 USD Regarding the parallel/series design is the most common problem on Halcyon and similar lights battery packs. Fortunately they are NImh and not Li ion. Edit Also my battery pack has a similar design. http://imgur.com/OAtxW They give you some silicone covers for transport: http://imgur.com/DC78n Bye
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