The Visible Dust Quasar R 5x Sensor Loupe Magnifier with Dark Adaptation Technology features a 5x magnification and 14 LEDs - 7 whites and 7 reds - to illuminate and aid you in locating any dust or particles on your image sensor. Its 5x magnification ED (extra low dispersion) glass, as well as flourine (magnesium fluoride) coating, provides enhancement to the resolution and reduction to chromatic aberration. The red lights Dark Adaptation Technology improves your visual acuity in dark environment so that you can view the sensor with greater clarity and in greater detail. In addition, the Quasar R 5x Sensor Loupe Magnifier employs Bright Vue technology that create a three dimensional image of your sensor as you look through the lens, which further enables you to see the tiniest spots. This sensor loupe magnifier also features a 67mm metal ring, thus allowing use with optional filters and extension tubes to afford alternative photography. This item comes supplied with two lithium batteries and a foam coated hard case.