I own a Canon 5D Mark III which is a great camera. I still have my 500D which is still a very good camera which I still enjoy using. The 5D has better ISO and Focusing and lots more buttons. It has a bigger sensor which does help improve image quality and does nice things with depth of field. The ISO improvement is really great.
One thing that maybe is better (but not obviously better) is the dynamic range of the sensor.
I can't see a whole lot of improvement over a 500D (I may not be looking properly).
What would be a great leap forward would be a sensor that captures the light in a scene with all it's ranges like an eye would.
I've seen in places that some people think the human eye has a dynamic range of around 20 stops other saying 6.5.
I've also seen it said that the dynamic range of a camera (9-11) exceeds the dynamic range of print (6.5 stops).
I am not a techical expert in this area and I know the eye is quite a complex mechanism and the brain also tinkers with an image but:
When I look at a scene with alot of different light I can take it all in and I see a picture in my mind.
When I take a photograph of it certain areas are lighter or darker than I saw.
I then have to edit my image to something approximately to what I saw (or thought I saw).
How hard is it to make a sensor with a higher dynamic range?
Can it be translated into something you see straight off on a screen or a print?
I'm sure a company that could produce a camera that produces images more like how a human sees the scene as would really be onto a big winner.
What would it take to do that?
Is it better dynamic range ability or is it something else that's required?