Canon A650 Lenses used to form light into a column. Similar to a lighthouse beacon, the
light has little spread. These are helpful in digital systems as they bring light into the sensor perpendicularly.
Canon A650 glass used for making fine optics that consists mostly of lime and silicate
of soda or potash, with no lead.
Diffraction Changes in the direction and intensity of light as the lightwaves pass by an edge or through a small aperture.
Canon A650 reflection within an optical system that is seen as fogging or bright spots on an image. A standard for digital camera lenses that allows optimal performance
in these digital systems. Sensors do not respond well to light striking at a high angle of incidence, so the Four-Thirds standard uses only the light projected from the Canon A650 lens.