> 4. More megapixels always means a better camera
> What’s the difference between 12 megapixel cameras and 8 megapixel cameras? Not much, as it turns out.
A friend of mine who consults on optics systems for both Nikon and Canon, once told me that unless you are willing to spend $10K or more for the lenses, no camera will give any better picture that a 3 or 4 megapixel camera.
Your friend told you wrong. It is possible to get pretty decent enlargements from a good 4MP camera, you would have to get a way more pixels before consumer quality lenses would not benefit from more resolution in the sensor. I don’t know exactly but probably more than 36MP in a 35mm sized sensor.
He is right in theory but way too low in his estimate.
BS.