Is 8.1 megapixels for a camera/video camera good?

I use the a Sony camera for videos and pictures. It is 8.1 MPs & it has 5x optical zoom. Do you think that that is good enough for good quality pictures and videos? Or should I use my iPhone 5's video camera/camera instead?

What model is it? The iPhone 5's sensor is also 8 mp (though obviously with no zoom), but you can't really determine the relative quality that way.

EDIT:

That said, if you already have both, it's probably best to do your own comparison.

Your Sony is fine as long as you don't want to make posters or show vids on a heck of a big screen. I still use a 6.2 mp Pentax dslr for most of my work, but I seldom print anything bigger than 16x22 and mostly in 8.5x11.

Gggggg

Try shooting them side by side. Your eye will tell you the truth.

The iPhone will have a much higher resolution video mode. If your Sony is only 8.1MP, I suspect its best resolution is VGA, 640x424. The iPhone probably shoots HD or full HD, a much higher resolution.

You can get magazine quality photos with a 6MP camera. The Nikon D40 is only 6.1, yet I've seen pro quality photos taken with it.
A lot had to do with the ability ( or lack of ) of the photographer.

8MP is more than enough for pictures. Most people need around 6MP only. 5X zoom will be limited but you can make up by walking.

8MP is too much for video. HD video needs only around 2MP.

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