In article ,
wrote:


just about everything.

full frame sensors produce images with higher image quality

But why ?

physics.

lower noise

That might be, but why ?

it is, and again, physics.

bigger sensors collect more light, thus lower noise.

wider dynamic range and/or higher resolution

If the pixcel numbers are the same and the aspect ratios are the same,
then the resolutions are equal.

for the same number of pixels, a larger sensor will have larger
individual pixels, resulting in lower noise and higher image quality.

if the pixels are the same size on both sensors, then a larger sensor
will have more pixels.

either way, full frame wins.

My question assumes shorter lenses to
yield the same image. Nothing cropped.

and the lenses aren't necessarily bigger.

Not true, under the above premise.

there are many variables, most of which people ignore.

for the same image quality, a micro 4/3rds sensor lens must be two
stops faster than its full frame counterpart, making it bigger and more
expensive, and in some cases, physically impossible.