They don't matter much.
Megapixels and absolute resolution are 2 different things.
Many companies advertise megapixels but never list absolute resolution.
Absolute resolution is a measure of the smallest amount of detail that the camera can capture.
Often with even the $300+ point and shoot cameras (eg if you check dpreview) you will see cameras advertising 14-16 megapixels but will only have a absolute resolution of around 2-3 megapixels (yes it is really that big a difference between advertised resolution and true resolution)
While a higher resolution is needed for larger prints, you can often get larger prints from a 5 megapixel digital SLR than from a 16 megapixel point and shoot.
DSLR's generally have results significantly closer their advertised megapixel rating
check here for more information
PS if you are going to spend more than $200 on a point and shoot, do your self a favor and save up and get a $500 digital SLR, you will get significantly better quality.
If needed look at reviews on dpreview of a pint and shoot that is priced close to that of a DSLR, you will see that the DSLR offers significantly better color quality, shadow detail and dynamic range.
answered Dec 08 '11 at 00:03
its really to when you enlarge them, with 8 and 10 mega pixels, you probably wont notice a difference, but the 10 will scale up bigger and keep its same quality
answered Dec 07 '11 at 16:21
Well the more pixels there are the clearer the picture there is. And yes the larger file size when saving it to an SD card. It's basically the details of the image being shown on the camera viewfinder or working with it in a document.
answered Dec 07 '11 at 16:22
Largely depends on your needs. If you will be cropping images or printing at large sizes then yes a better resolution would be recommended.
However ensure it is a decent quality sensor because simply shoving more pixels into a sensor will in some cases lower the quality because of them being made smaller. Big numbers don't mean much on their own.
I would go with a respectable brand with a slightly lower resolution than one you havn't heard of but bigger numbers.
answered Dec 07 '11 at 17:06
10... 12... 15 MEGApixels... I'll bet you are impressed! But unless you are going to print murals, you will not NEED those numbers... unless you are filling SD cards and Hard Drives. For posting on the internet, 0.3 megapixels is MORE than the resolution of MOST monitors so if your shots are just to post on the internet, then don't waste your time and space on GIGAPIXELS. Look instead for a good quality lens, like Leica, Optical Zooming to 10 or 12X, something wide angle like 24mm, Night Shots, Automatic Flash and things that count... not just big numbers. And as I have lugged 8 x 10 view cameras around on my shoulder as a squirt, I can take just as good or better shots with my Panasonic Lumix DMC-ZS10.. and video too!
answered Dec 07 '11 at 22:53
It doesn't matter about the MP count if the lens is total rubbish!
answered Jul 06 '12 at 17:22