Now a days people are using many of good quality cameras which are about 5 -8 or 10 MegaPixels, but still many peoples are using Vga cameras. many of mobile phones are have preloaded vga camera.

Maximum image size supported by Any VGA camera : 640 x 480

640 x 480 = 307200

VGA Camera

So if you have any VGA Camera then in fact it is a 0.3 MegaPixels Camera we can say.