Search For The Right Camera For My Underwater ROV

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UnderwaterROV

The picture above is an underwater Remotely Operated Vehicle (ROV). When I discovered that many people are building similar vehicles for a few hundred dollars, I said – me too! To buy them ready-made, you’re looking at several thousand dollars to start.

There are a number of videos and websites building your own Underwater Remotely Operated Vehicle (ROV) on the cheap. Most everyone wants a video camera aboard. For me that was the reason for building it. And the GoPro seemed the ideal camera, but there was one more capability I wanted – live video from the ROV’s POV. Since radio waves do not travel well underwater, this meant I’d have to have a hard-wired monitor topsides.

The only problem now was that none of the waterproof cases had a wire – whether HDMI or RCA coming through the case in a waterproof manner. The GoPro Hero 3 and 4 had one solution for an extra $200 plus, but those cameras start at $200 so that’s $400 for just the camera. The more I dug into this, the more I realized I’d have to make my own underwater housing. This is not as daunting as you might expect because there are many adventurous souls who have made their own and documented it thoroughly. My search for the right camera for my underwater ROV was not as simple as I expected.

I looked into all kinds of approaches like using a board camera and building the whole assembly. I also discovered fish cameras which come complete with cable and topside monitor for as little $130 complete, but I did not find anything I liked with 1080p video. So I looked again at the GoPros, especially the older ones like the GoPro Hero (naked). This would have been fine as it captures 1080p at 30 fps. I could use the GoPro underwater housing and do some surgery on it by adding a sealed hole for the cable that would exit the camera.

Since I’m going to have a cable stuck in the camera, I had to consider how much extra space this would require next to the camera connector. Photos and diagrams of the camera were not enough, I’d have to see it in person. So I took a trip to West Marine, a large boating supply house, to see their GoPros. Turned out they only carried the new GoPro Hero 4 which starts at $400 and that was a lot more than I wanted to spend. The camera is only part of the cost, the ROV would need three motors, buoyantly tanks and lots more. I wanted to start with the camera since getting live video from the sea bottom was the whole mission. As I was walking away from The GoPro Hero 4, the salesman asked if I had seen the Garmin Virb Action Camera.

Some of the side by side tests showed the Garmin Virb to have better looking video than the GoPros. There are two versions – the Virb and the Virb Elite. The Virb has been discontinued but is still being sold and customers seem to love it. The $300 Virb I saw at West Marine had been marked down to $78! This was my camera. When I got it home I found the battery would not take a charge so I have to exchange it for another one, later today. So my review of that camera will have to wait.

And yes I will be putting it at risk by making my own underwater housing, but after reading all the DIY housings I was pretty confident I could make it dry down to 50 feet. I will keep you posted this project on this and will review the camera as soon as possible.


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Google Cardboard DIY Virtual Reality Headset

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Google Cardboard Virtual Reality Headset

Reactions from people who viewed Google Virtual Reality

Virtual reality is about to change entertainment, information consumption, possibly the way we interact with the world. As Google says “Visit new places, play immersive games, fly through space and more.” This Google Cardboard DIY Virtual Reality Headset is something you can build from cardboard. Add two cheap lenses, a magnet and your smart phone and you have a virtual reality headset for peanuts. The free Cardboard app from Google has already been installed on at least one million Android smartphones.

The app includes demos such as:

• Earth: Fly where your fancy takes you on Google Earth.
• Tour Guide: Visit Versailles with a local guide.
• YouTube: Watch popular YouTube videos on a massive screen.
• Exhibit: Examine cultural artifacts from every angle.
• Photo Sphere: Look around the photo spheres you’ve captured.
• Windy Day: Follow the story (and the hat) in this interactive animated short from Spotlight Stories.

Google Inc. wants Android to be the operating system for virtual reality. They are working on a new secret version of Android that might well power the next wave of major gadgets. Their new VR version of Android would be freely distributed just like Android is for smartphones, tablets, and wearables.

The race is on. Some of the companies which are developing VR products include: Facebook which recently purchased Oculus VR for $2 billion, Samsung, Microsoft’s amazing Holographic Goggles, HTC and Sony which has Morpheus for the PS4 which they recently previewed.

Virtual reality is about to change our world in a big way. This goes way beyond games and entertainment. Engineers could make repairs remotely. Manufacturers could produce products outside their own factory, controlling machines remotely while seeing the objects in front of them. And surgeons could perform surgery remotely. Colleges could provide a remote immersive experience. Imagine what kind of video you could produce. 4K video would seem like black and white Standard Definition.


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Broadcaster Mini Turns Any HDMI Camera Into A Wireless Streaming Device

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Turn An HDMI Camera Into A Wireless Streaming Device
The Broadcaster mini turns any HDMI camera into a wireless live streaming device for less than $300.

To setup and control the free Livestream app you must have an iPhone, iPad or Android device in addition to a HDMI camera. The Broadcaster Mini Micro-HDMI input supports 1080i/720p/576p/480p (Pal & NTSC). It does H.264/AAC encoding up to one stream of 1080p 4Mbps. The Mini also features a built-in wireless 802.11 a/b/g/n (2.4Ghz/5Ghz). The internal rechargeable Li-ion battery can power over 2 hours of live streaming. Check out the Livestream Broadcaster Mini | HDMI Camera Live Streaming Device

For more information visit the Livestream Web Site.

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Make Night Art with a Quadcopter

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Photographing light trails at night has been a popular technique of both still photographers and videographers. We’ve all seen the light trails of night traffic in a time lapse video. Light painting in still photography can be done a couple of ways. One way is to take a long exposure and move the lights during the exposure. That’s is what is being done in the video above. Another way is to move the camera during a long exposure.

The video above shows making time lapse still photos, rather than video. And in this case the Phantom Quadcopter is not the camera car; it is the camera subject.

Flying a UAV at night introduces additional safety issues so fly in an open field far from civilization. If you are going to make night art with a quadcopter, think about the safest way to do this. And prepare to land at a moment’s notice if for some reason the Phantom lights failed.

Light Painting With A Quadcopter
Light Painting Screw, by Karsten Knöfler (Own work)
https://commons.wikimedia.org/wiki/User:KKnoefler247
Wikipedia Creative Commons http://creativecommons.org/licenses/by/3.0 via Wikimedia Commons
https://commons.wikimedia.org/wiki/File%3ALight_painting_screw.jpg


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Digital Bolex is Available

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Digital Bolex Ships

The Digital Bolex D16 cinema camera was originally funded on Kickstarter as we reported back in 2012.It is shipping now. This 2k camera makes cinematic quality video and the prices start at $3000. This beautifully shot promo shows off what the D16 can do. https://vimeo.com/digitalbolex/cinemaquality.

That was projected on the big screen at the Downtown Independent in Los Angeles to show the cast footage that was shot the previous day on set. Like its film namesake the Digital Bolex has a C-Mount lens port. It accepts a wide variety C-Mount lenses, both vintage and modern.

The Digital Bolex D16 has a Super 16 CCD Sensor with Global Shutter (which prevents the jello-cam effect on fast moving subjects or when panning.). This color sensor has 12 Stops of Dynamic Range. It can capture 2048 x 1152 (Super 16mm mode) or 1920 x 1080 pixels (16mm mode), Color depth 12 bit 4:4:4, 12-Bit Adobe Cinema DNG (RAW)

The Super 16mm-sized CCD sensor processes images differently from CMOS sensors. Onboard storage options include 256GB, 512GB, or 1TB Hard Drive for up to 3 hours recording time in 2K or 4 hours in 1080. The camera starts at $3000 without lenses. Bolex prime lenses start at $350. The Digital Bolex is available now. For more information visit Digital Bolex.


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