D7000 water/impact damage err - Help?!

Hello, yesterday I was using my underwater bag camera case with my d7000. I set it down to the side on a boulder to climb up this rock and my friend slipped down the boulder and kicked it. The camera flew about 2 feet, bounced off a rock and landed in the water. I got it and it was still working but had got some water in the bag. We were pretty far in this swimming spot so I drained the bag and it was left in the bag with a little water in it for about 1 hour so it was pretty humid but it still worked for the first 20 mins. I finally got it out of the bag and it shows the ERR blinking on the top lcd. Frantically I removed the battery, SD card, and lens. I dried it off and when I took off the lens, there was absolutely no water inside the camera so I'm wondering if the err is from the bump on the rock or the water? And any tips on how to fix this? I am a college student with no money to send to Nikon to get repaired but I am 100% ok with doing any repairs myself. Thanks in advance!

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Price of nikon d3100 and d3000 in uae?

Which is them is better

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How to use the remote off camera flash with my SB-700 on my Nikon d5000?

So i am a beginner in flash photography, I have the Nikon SB-700 flash and I can use it perfectly mounted on the camera, but I can't figure out how to use it as an off camera remote flash, so it's not mounted on the camera. I see the remote flash settings in the menu of the camera and flash, but I can't seem to sync the two to work together.

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Buying MacBook Pro with Final Cut Pro x already inside?

I don't like inserting my credit card info online in any way, so I was wondering if I could purchase my MacBook Pro 13" with Final Cut Pro already installed at the Apple store? And is it 8gb enough enough for video editing? I have a Nikon d3100 1080p videos… And just surf the internet. Nothing else. Thank you

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Best resolution for a picture book?

My father is planning to publish a book about sea shells. He assigned me for the picture taking. What is the best resolution I should set on my camera considering I got 24 megapixels with my Nikon D3200. Also, the pictures will be re-sized and lay-out in a pattern of 4 pictures per page with shells' description at the bottom of the pictures. I'm thinking that if I set it at 24mp and if re-sized the fine details of the shells will be lost.

I'm not a professional, the book he needs to publish is just for his research. Kindly help out. Thank you.

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How good is the zoom range on the Nikon 1 J3 with the 10-30mm and 30-110mm Lenses?

I need a camera with very good zoom range. I will be attending a concert soon and the stage is considerably far from where I will be seated. I saw a very good offer on the Nikon 1 J3 camera. However, I'm not sure if this camera is worth investing in if it does not meet my needs. Any other suggestions would be appreciated. (mostly looking for a camera that has at least 35x optical zoom, and under $250)

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