Senin, 09 Desember 2013

I need a new digital camera!!!!?

Q. I really need a new digital camera! It needs to take good to decent photos and I would like it to be water proof. My budget is from 100-150 or a little higher depending on how much I like the camera. If you have a recommendation please leave a link to the camera below. I also wanted to ask what camera brand is better than the others I know Kodak is terrible then there's Sony, canon, Nikon which are the most familiar to me. I know there are the goods and the bads of each brand but in general which is the best for digital cameras. Thank you for your time best answer gets 10 points !!!!! 😃

A. Popular Photography's April 2013 edition covers waterproof cameras. They make the following suggestions:

Sony Cyber-shot TF1 - $198 (need reviews)
Fujifilm FinePix XP60 - $198
Pentax WG-3 GPS - $297
Nikon Coolpix AW110 - $347
Olympus Stylus TG-2 - $379
Panasonic Lumix TS5 - $399
http://www.dpreview.com/products/compare/side-by-side?products=sony_dsctf1&products=fujifilm_xp60&products=pentax_optiowg2gps&products=nikon_cpaw110&products=oly_tg2&products=panasonic_dmcts5
http://snapsort.com/compare/Fujifilm-FinePix-XP60-vs-Sony-Cyber-shot-DSC-TF1


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...





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