Note: As shown in the picture, this IR filter has five types: 680nm, 720nm, 760nm, 850nm and 950nm. Item Specifics: Brand Name: Zomei To Fit: Camera Type: Infrared X-Ray Filter Frame Thickness: 1.53mm Frame Height: 4.45mm Shape: Circular Glass Material: Imported Optical Glass Frame Material: Aluminum Caliber: 52mm; 55mm; 58mm; 62mm; 67mm; 72mm; 77mm; 82mm Application: Nature, scenic, often used in crime detection, medical photography, detection of distribution of vegetation, etc. Product Description: 680nm for indoor and weak shadows use. 720nm for indoor and weak light use. 760nm for cloudy outdoor at nightfall and brightness indoor. 850nm for indoor and weak cloudy outdoor light. 950nm for outdoor and strong light,such as summer time. Suitable for DSLR/SLR Camera with a 52mm Filter Thread Works well with digital cameras, especially mirrorless cameras or DSLRS with no IR blocking filter in front of the sensor. (Please check your camera's owners manual) Infrared film is also sensitive to ultraviolet rays and the shorter wavelengths of the visible spectrum so it is necessary to filter out all but the infrared rays. The exposure time is relatively long when using IR filters, a tripod is necessarily needed at this situation.We also suggest you to use a cable release in case shake happens. Hotspots are a relatively common problem with infrared. It is due to internal reflection of light inside a lens. Normal lenses have coated barrels to absorb light, but these coatings don't always work in infrared, causing these problems. Hotspots can often be eliminated by changing the aperture. Hotspots occur most often in the same type of shooting angles that cause lens flare. In this case, hotspots can usually be avoided by shooting away from bright sources of light. Package Including: 1*Infrared X-Ray Filter