To "see" a (particle, line, etc.) within the object, the particle must cover 2 pixels on the sensor. First the lens must be able to collect the detail (lens resolution), then the system relays this detail to the sensor with a certain magnification. The combination of this magnification, camera pixel size, and the "2 pixel rule", gives the finest detail the camera can see (camera resolution). Either lens resolution or camera resolution will be the determining factor.
The Wizard's prime directive is to look for lens solutions that guarantee the desired object overlay on the sensor. Various solutions have various resolution capabilities. When given the appropriate data, the Wizard will compare both the lens resolution, and camera resolution limits, with the requested detail size. (This only applies to high magnification systems, as low mag systems (< 1x) are grossly "camera limited", and any fine detail will never cover 2 pixels.
If resolving of very fine detail is a concern, you need to tell the Wizard the pixel sizes of your viewing system. It will show the resolution capabilities of your chosen system, where applicable.
Pixels are the little "eyeballs" on your camera sensor, a 3meg (megapixel) camera has 3 million eyeballs. Normally, pixels are specified in units of microns (μ) (0.001 mm) and range anywhere from 3 to 24 microns (0.003 mm to 0.024 mm).
Known Pixel Size: mm (ex: 7.4μ = 0.0074mm)