What's the quality difference between canon powers hot sx510 and nikon d3200?

I'm looking for a good quality camera. I have the canon sx510 and it is not up to my standards. What would the quality difference be between this camera and the nikon d3200? Are the nikon d3300&d3400 better than nikon d3200? (In terms of quality.) thanks!

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Nikon d3000 night sky photography help?

I have a Nikon d3000 with 18-55mm lens, I can't quite get a good picture of the skysky. I have taken some but the stars aren't very bright and hardly visable, I set exposure to +5 points and not sure what else to do. I'm using manual mode also

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How to recover files from a corrupted SD card?

I recently took a bunch of pictures on my Nikon camera and the most recent files were damaged and wouldn't open, so I downloaded a program that was referred to by a website where somebody had the same problem, but it has copied the files of the photos that I already had but smaller and awful focus and only some of them are now left on my SD card and I have loads missing, what should I do?

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My Nikon 5700 will only work if it's on the charger?

It still turns on when not charging, but the battery symbol will flash and it will shut down after 30 seconds or so. I don't even have time to take a picture! But it works perfectly fine if it's on the charger.

I've left it on the charger over night and also tried to charge just the battery over night. The battery doesn't seem to hold any charge.

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What camera should I take to Italy?

What camera should I take to Italy?
Added (1). I will be going to Italy in two days, and I have a choice between two cameras that I will take: Nikon D750 or D800E. Which would be better overall?

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