How to make Time-Lapse videos?

I'm new to making time-lapse videos and I would like to know more about how exactly to go about it. Currently I have a Nikon Coolpix p510. Will that work or do I need a DSLR? I also understand that I need to have a intervalometer. Generally, I'm interested in creating Star Field Time-Lapse videos.My main question and concern is about the software. When you take all the pictures at multiple second intervals, will they be put together into a video, or will I have to take all the pics and stitch them together? If that was a stupid questions and all you photography gurus are silently shaking your heads, please help! Again, I'm extremely new at this, I have tried to do some research but most of the videos were kind of out of my league… Please help!

См. статью: How to make Time-Lapse videos?

Why does my Nikon Coolpix L310 keep crashing?

I've had this camera for a little over a year and i'm taking it on holiday with me in 3 days. However last week I was using it around the garden and house and when I half-pressed the shutter release button (to focus it) it shut down and turned off, and kept doing this - apart from when I was in the house.it had done this before but i'd managed to take some pictures in between times. I really don't want to be lugging this around on holiday if it's just going to keep crashing so please help or tell me what's going on? thank you :)

См. статью: Why does my Nikon Coolpix L310 keep crashing?

Dpi versus megapixels and image quality?

So why does my 6 year old coolpix with a paltry 7 mega pixels absolutely wipe the floor with my brand new canon powershot with 12 megapixels in terms of portrait and close up shorts?
With the coolpix I can zoom right into an image and the detail is amazing, but with the canon the image quickly becomes pixelated with no fine detail.

I noticed when looking at the properties of the shots, the coolpix recorded 300dpi versus the canon's 180.
So does this have any relevance or am I overlooking something? Perhaps its the quality of the lens or perhaps the size of the sensor.
I am just an amateur who likes to take sharp close ups and I'm very disappointed with the power shot and my coolpix died on a fairground ride :(
Added (1). I ALWAYS shoot on the highest quality image setting.

The canon doesn't shoot RAW.
Added (2). Edit @ BK: Just to clarify, I'm comparing images uploaded onto my laptop. Both cameras were set to highest quality image setting - I might be a novice but I don't need to read the manual to know how to do this.
Its OKAY to say you haven't got the knowledge to solve my issue.

См. статью: Dpi versus megapixels and image quality?