zug55 wrote:
However, one of your statements is not true: "Smaller pixel diameter means more resolution capability." If that were the case, I would ditch my full-frame camera and only use my cell phone. Generally, you get a higher resolution from a higher pixel count. However, smaller pixels (technically photosites) store less data because, well, they are smaller. What that means that you may get better resolution in good light, but the low-light performance falls off. This is why sensor size matters: a larger sensor has more space for pixels, but also allows them to be larger.
However, one of your statements is not true: "... (
show quote)
You have misread the context.
"With the same sensor size, higher pixel count will mean smaller pixel diameter. Smaller pixel diameter means more resolution capability"
This is about increasing the number of pixel per area. IE:
a full frame with 6mp vs a full frame with 24mp.
A celphone with 1mp vs a celphone with 5mp
Pixel density, or more pixels per sensor size "may*" improve resolution.
The sensors photosites or pixels do not store data. They convert light to electrical signals.
A pixels' response/sensitivity is altogether another topic. Not only size affects a pixels capability but other stuffs as well, like how old the technology, filters, SNR, operating temperature, bit depth etc.
Theoretically, we want the smallest and as many pixel as possible. That will allow us to define the smallest line hence the sharpest & true to life image. Technology, in many aspects, are not there yet.
*Note that i said "capability" in the original post. Because it still depend if the other parts of the system can support the increased density. It will need a lens with a resolving power matched to the sensors.
It won't matter how much MP the sensor has if the lens is soft.
Changing to a sharper lens would not matter if the sensor could not define the lenses resolution.
It's a system. IMHO, the only element that can be changed that will provide the greatest improvement (or not) is the person operating the camera.