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johnsampson

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About johnsampson

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  1. Thanks for the info! I'm thinking I might just take a flash I know to have a good sleep mode and stick in a cheap underwater flashlight housing like the Princeton Tec Sector 7. It will take a bit of testing to make sure there is no water leaking if I leave the housing underwater for a week but whats the worst that could happen?
  2. I'm looking to do an underwater timelapse with 3 strobes. I'm used shooting timelapses above the water and I've learned there are many strobes that use a lot of power even when they're sleeping. Some strobes have excellent low power sleep modes, such as the nikon SB28 flash, but I haven't seen this flash used in any underwater setting. Ideally I'd like to get a week or so out of my flashes as 99.9% of the time they're just sitting there not being used, but I don't know if underwater strobes have good sleep modes. Thanks in advance! 1) How long would your underwater strobe stay powered on and ready to be used if you left it on and connected to the camera? 2) Does anyone have or know where I can find the current draw of their flash when it's power on and in sleep mode? 3) Are there any known or specific flashes that have a good low power deep sleep mode so that they can sleep drawing little power when they aren't being used but then be used the instant they are needed and then go back to sleep?
  3. I'm familiar with strobes used on land but wondering if there are any major difference besides being waterproof that I need to take into account for shooting underwater. Basically I'm wondering if I took normal Nikon flashes and put them in a waterproof case and synced them to my SLR, would I still get great photo's? Thanks in advance.
  4. I'll be using a Nikon D3200 and Tokina 12-24mm and two or three flashes but I need help deciding on what dome I should purchase. I don't expect to be switching out lenses down the line but it would be nice to have the option. I was thinking one of these two domes still don't full understand the pro's and cons of each, if the $550 is really worth it, or if someone has a better suggestion: 1)Modular 8-inch Dome Kit with 4.125-inch Lens Extension ($550) http://www.ikelite.com/accessories/5511.3-dome-kit.html 2) Dome Port for Tokina 12-24mm ($250) http://www.ikelite.com/accessories/5503.51-dome-port.html About the setup: Due to a number of requirements for my underwater application, the camera will be manually focused to a distance of between ~1ft and 12ft, and all shots during the dive will be taken with the same settings. Photo's will be taken during day and night. uwphotographyguide suggests a dome port with a diopter for the tokina 12-24mm, but I don't know if I need one based on my setup and focus distance. From my reading a diopter is an additional lens that basically clips onto the outside of the dome port? Any comments or advice appreciated. Thanks in advance.
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