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About bmazin

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  1. I'm planning to stick a sony HD handcam behind them. They are from Video Rays, and they are not optically perfect, but we'll do some tests and see how good they are. I think for a pro setup it would be better to put lights behind the domes and mount a true housing between them.
  2. 50 lbs of thrust 20 lbs dry weight 14.8V 32 Ah battery pack - 1.5x the stored energy in a NiMH X-scooter battery pack 42 minute burn time at 75% throttle Optional dual 21W HID fixed focus lamps Dual independent throttle control (Tank Drive) Separates in minutes into 2 Armjet microscooters http://jetboots.com/index_files/Page432.htm I took it out on Sunday for its maiden ocean dives. It performed really well. Easing off one of the throttles allows for very sharp turns, but it makes really nice sweeping turns at full throttle as well. We've got some minor issues to work out - we're going to improve the throttle mechanism and replace the fixed arm ring with something more adjustable before we go into production. One of the major uses I see for this platform is video. With two wide angle HIDs in the Armjets and a camera mounted in the center should be very stable and fast.
  3. Don't most modern cameras have some sort of anti-shake feature built in that would take damp out the vibrations? This could be an issue, but I guess we'll find out when we try it!
  4. I'm working on making a photo/video version of this. Picture this - 2 armjets with 21W HID equivalents in the domes (probably LEDs) attached together by 2 ~2' poles. Below these two poles in the middle you hang an HD camera housing. Each Armjet has independent throttle control, so you can drive it like a tank - extremely fast left/right turns. It should be as fast or faster than a gavin/ss/X-scooter but weighs only 20 lbs without the camera. You could mount a remote LCD in a convenient place so you can frame your shot while using both hands to control the rig. Just guessing, but I doubt there are many 4-5 knot motorized camera platforms with built in lights for ~$6k. Any video pros/documentry film makers out there think this could be useful? Here is a (terrible) sketch of what I'm thinking. More to come as this gets closer to reality.
  5. Hello all. We're introducing a new underwater propulsion device on Monday, and I thought I'd give you guys a heads up. This new scooter, named the Armjet, is a derivative of our Jetboots (J-DPS) product line but aimed more at the recreational diver. We basically took the guts of a single Jetboot thruster and half of a standard Jetboot battery and stuck them into a 5" diameter aluminum cylinder. You use the resulting DPV as a one-handed scooter, with your arm either straight out in front of you, or bent and below you (imagine the arm position of bicep curl but with your palm perpendicular to your body). You can probably hook it to a crotch D-ring by looping a cord around the base of the arm ring, but I haven't tried it yet. The resulting DPV has about 25 lbs of thrust but only weighs 9 lbs. It is pretty close to neutral in salt water. Now the best part - we made the front a dome port, so we can stick some interesting things in there - like a 10 or 21 Watt HID light running off the main battery, or a video camera. I'm thinking a Sony HDR-SR7 will hit in nicely with a bit of an extension port. This little unit is really fun. It is hard to believe something so small can put out this much thrust, especially since the battery lasts almost an hour at 75% throttle. This isn't designed for a tech diver in doubles and a drysuit, but it moves a skin diver or a person in a compact tropical rig around really well. I think this is really a new class of scooter –a microscooter. It is extremely small and portable so it easy to travel with. Doubling as a nice HID light is also nice. We're starting to take orders on Monday. The price for a place in the first production run will be $2500. Mention you're from the wetpixel and we'll take off $100. More information is available www.jetboots.com. I’ll check back here to answer any questions. Hopefully we'll have some more pictures and video up soon!
  6. While I didn't take the picture, I did build the Jetboots on the diver! From: http://www7.nationalgeographic.com/ngm/070.../gallery17.html
  7. I got burned by paypal once as well. I sold something on ebay, and the sender sent the money on paypal, so I sent the item, and got the money as a check from paypal. A month later paypal said the account was used fraudulently, and demanded the money back (and the damn $1.50 check fee, those cheap bastards). They would have sent a collection agency after me if I didn't reimburse them. It REALLY pissed me off. My mistake was that I have different user names on my paypal and ebay accounts (my accounts predate their merger) and I didn't ship to a verified address. You really need to read the fine print - there are very severe conditions for qualifying for their "protection". I filed a wire fraud complaint with the FBI (I had the address the item was shipped too, after all) - guess how much that did?
  8. I heartily disagree! Kona's reefs are rather monotonous - where it really shines is big critters in wide angle.
  9. I just finished editing up some video from a recent Jetboots trip to Kona - let me know what you think: http://www.jetboots.com/jetboots2.mov (warning: the quicktime file is pretty big at 47 Mb)
  10. I am going to be diving with DiveTek in Kona on Tuesday and Wednesday 8/31 and 9/1. I want to get some video of Jetboots (http://www.jetboots.com) for marketing purposes. If you have access to a housed 3 chip mini-DV video camera and would be interested in doing some filming I will pay for the boat trip and a reasonable fee. If interested, call me at (626)833-6530. Thanks, Ben Mazin President, MST, Inc.
  11. There is a very small pin on the black base that need to line up with a hole in the camera bottom before you screw the camera down. The only alignment problem I had was that I needed to put some electical tape on the aperture button since the screw control was not quite long enough.
  12. Some shots from catalina with canon digital rebel, Aquatica A300, 2 DS-125s, and the canon 100mm macro lens. A very rare Scythe butterflyfish - first time I've seen them, and I had the wrong lens, but you can at least ID them from this pic. The rest of the gallery is at: http://www.jetboots.com/catgal060504/
  13. A quick update - I've pretty much abandoned this plan since Aquatica seems to have gotten things working with their ICU board and this will allow me to use more powerful underwater strobes than the 550 EX. No fast pulse mode, but I'll live.
  14. Just got back from Curacao with my Drebel, A300, and 2 DS-125s. The trip went well. I had some minor issues with my beta version ICU board, so I shot manual most of the trip. The wide angle shots are with the 18-55mm kit lens behind the dome port, mostly at 18mm and around f/4.5. The macro shots are with the canon 100mm macro. The gallery can be found here: http://www.jetboots.com/curgal/index.html Some highlights are shown below:
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