Rabu, 28 Mei 2014

Underwater wireless live streaming Camera?

Q. So I am building an underwater ROV and my team needs a camera to mount onto our robot. It needs to be water proof, but if you have to buy a separate box it might be okay. It should be wireless, but we could run a Ethernet cable if we have to. And of course it needs to be able to live stream onto a laptop on the surface of the water.

I have looked into using a Go Pro, but I am unsure of what model to get and Go Pros seem a little pricey, so cheaper options may be better.

Does anyone have any ideas on what i can use? If i use a Go Pro i need to know which model is best, but I would like cheaper options if they exist. Thank You

A. Underwater wifi is relatively new and not "readily" available.
http://nypost.com/2013/10/17/yes-underwater-wi-fi-is-a-thing/
at least, not from regular stores. If you are depending on the GoPro wireless connectivity to do what you want, I would bet against it - at least for now. That means some sort of tethered version. As far as I know, there is no wired, direct, "streaming" capability that will do what you want. Remember, the GoPro is a camera/camcorder and designed to capture video locally to a memory card.

Wireless communication is one thing - wireless video is a whole different animal (bandwidth issues in the aquatic/marine environment).

And if you are using a robotic craft, I am guessing the ROV is going to be more than 100 feet away which means if on land, would be on the edge of wifi's reach - underwater, even more so. The GoPros included waterproof housing is rated to only 40 meters (~130 feet).

A camera-only (no local recording), with a cable, solution may be a more do-able option. Since we don't know how deep the camera needs to go and we don't know how far away the camera will be (it could be 5 feet deep but 300 feet away) it is impossible to actually make a recommendation. This shallow, but far away is different than 300 feet deep because of the pressure exerted at that depth.

Your solution may be as simple as
http://www.amazon.com/OceanDrop-Underwater-Training-Observation-Inspection/dp/B007EFG3N2
which is even more than the GoPro. This is an underwater wired camera designed to do what you want. Similar to a security camera, it has a single cable that includes connections for power and the video feed. The power is supplied on the computer side of the cable - the camera does not carry local power. The camera does not store video locally, but sends the video over the wire to an analog/digital converter. This can be a standalone box like those from Blackmagic Design, Roxio, Elgato, Thompson/Grass Valley/Canopus or a card fitted to the computer.

And keep in mind that at about 40ft-50ft and deeper, you will likely need to add light. Underwater lighting can be pricey...


digital camera that takes VERY CLEAR CLOSEUPS for under $100?
Q. People who know cameras please help me find a very inexpensive digital camera that will not blur or motion bur and takes high resolution photos of close-up/small subjects. I definitely can't afford anything over $100, but $50 would be even better. I'm looking for the least expensive option that takes super super clear closeups basically.

I don't need a lot of storage space, just as long as it has a memory card slot. Would also be nice if it was wall-chargeable (aka you can plug it into an adapter to charge instead of a battery) but I don't know if that's possible. I don't know resolution jargon, but my current camera takes pictures that are roughly the size of an entire computer screen, so anything that resolution or better is good for me. It just blurs a lot, so that's why I need a new one.

Recommend away! Thank you!!!!

A. Canon PowerShot A2300 is an excellent camcorder. This camera comes with 16 megapixels. It also has an excellent 28mm wide angle lens with digital image stabilizer and a 720p HD video. This camera shoots awesome pictures,videos and have been one of the top recommended in 2013 so far. It would be perfect for your youtube videos. It is sold at amazon for $88.72 which i think is a decent price for such quality. I have provided links below for you.
Canon PowerShot A2300 16.0 MP Digital Camera with 5x Digital Image Stabilized Zoom 28mm Wide-Angle Lens with 720p HD Video Recording (Red)


check out this video that the camcorder took below:

http://www.youtube.com/watch?v=87rv5OUn17s
http://www.youtube.com/watch?v=B_6rS2x3JAE
Source(s):
Professional photographer for over 20 years





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