Low price dslr housing?

I'm a sophomore in high school planning on going to australia as part of the national geographic high school expeditions this summer. We will be snorkeling on the barrier reef for a few days and I would love to get some good underwater shots but so far I've only seen housing like aquatech and ikelite which are too expensive for my budget. Are there any better low-cost DSLR camera housing systems out there? If not, does anyone know of any discounts, used/refurbished housing systems, or low cost underwater cameras? (I have a nikon d800)

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How much can i sell my Nikon D40 lens for?

I have a Nikon D40, but the flash is totally broken so I don't think I can sell the camera. I have the working 55-200mm lens though, and I am wanting to sell it. I have seen eBay listings for $98-$120 for the lens but I don't know if anyone would actually buy it… Any advice? Thanks (-:

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Why is my nikon D80 is taking very dark photos? - 1

Its the middle of the day and I want to take photos inside, lights are on as well, and my camera is taking very dark pictures

Its on Manual
shutter speed 1/80 sec
aperture 4.5
ISO 100
lens Nikon nikkor 18-35mm

What is going on?

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Nikon D5200 autofocus? - 1

I just purchased a Nikon D5200 and I also ordered and external microphone (shotgun mic), If i use the shotgun mic while recording video will that get rid of the noise that the autofocus makes? I have not used either yet but what I have heard was that when shooting video and using the built in mic on the camera you can hear the camera lens autofocusing.

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Nikon d7000 Auto Focus Problems?!

Just got a brand new Nikon d7000 less than a week ago and today all of a sudden out of the blue the AutoFocus does not work. Won't focus and if you try and press the shutter it won't take pics either. Manual focus works fine. What is going on? Any suggestions on what might have happened?!

I'm using the Nikon d7000 with the 18-105mm VR lens. Both the auto focus button on the camera and on the lens are clicked to auto focus but it won't work. If I switch the buttons to manual it works fine. Brand new camera… Any help would be appreciated! Thanks

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What type of slr camera between sony. Canon. Or nikon for begginers?

What type of slr camera between sony. Canon. Or nikon for begginers?

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Using 7.4V battery in my camera when the original was 7.2V?

I have a handful of Nikon cameras lying around here. My newest camera has a rechargeable Lithium ion battery that says the following:
7.2V 1230mAh 8.9 WH
In some of the older models I have a battery of the same dimensions that states:
7.4V 1030mAh 7.7 Wh

I tried out of curiosity to put the second battery into a camera that used the first that I listed. The camera turned on and worked fine. I am wondering if I switch the batteries out will I be damaging the electronics.

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How to shoot raw with a Nikon d3200? - 1

How can I set my camera to shoot raw? I am new to photography thanks for any help.

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How to focus on the eyes with a DSLR? - 1

I have a Nikon DSLR, but I'm pretty sure that settings are similar to other DSLRs like Canon's, or Sony's, or Pentax'.

When taking portraits, or people, you should always focus your camera on that person's eyes. But, how do you do this? Do I set my focus mode on "Single-point AF" and manually select the focus area on the eyes or just leave it at "Auto-area AF"?

How about my metering? Do I set it to Matrix, Center-Weighted, or Spot given that my subject is in the dead center and in a non-studio background?

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What is a decent not too expensive wide angle lens for a Nikon d70 DSLR Camera?

What is a decent not too expensive wide angle lens for a Nikon d70 DSLR Camera?
Added (1). and a macro lens

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