IMAGE COMPARISON
This provides some examples of what you can expect for:
Here you can see the writing on the trash cans - but somewhat blurred or "pixelated" at only 2MP.
Here you can see the writing on the trash cans a little better - but still somewhat blurred or "pixelated" at 4MP.
Here you can see the writing on the trash cans much clearer due to the higher resolution (more pixels) of the camera.
Here is an 8MP Pan/Tilt/Zoom (PTZ) camera at normal (1x) zoom level.
The same camera zoomed in 8x.
The same camera now zoomed into its maximum level. Note the letters on the sign are clearly visible.
This is an image using Infrared only.
Here is an image at night with nearby lighting available.
Notice how just a small amount of ambient light helps out the image significantly.