What you can't see can affect your pictures. Countless types of contaminants will turn up in the camera chamber and on the sensor. Dry loose particles may statically adhere, while wet particles can chemically bond to the sensor. Contaminants come from changing lenses, dusty/humid environments, and even from inside the camera chamber itself.  SensorScope enables you to check your sensor to see if it needs cleaning-there's nothing safer than not cleaning your sensor. The SensorScope looks like a camera lens; however, it allows you to look back into your camera to inspect your sensor. The SensorScope is easily portable and provides a 5x magnification lens and 4 ultra bright LED lights, which are focused to completely illuminate the field of inspection. Although specifically designed for Canon and Nikon DSLRs, the SensorScope may be used on any manufacturer's DSLR. 1 SensorScope (2 CR2025 Batteries included). 1 SensorVac (4 AA Batteries included) 24 SensorSafe Wands; 12 Small, 6 Medium, 6 Large 1 SensorSolution (.5 oz. bottle) 1 Carrying Case