brand new Spot goods With packing box, please contact customer service if you need to issue an invoice.
With three fixing screws, pitch 0.5mm
Polarization type:Circular polarization(Circular polarization)
product material:Optical glass
Product introduction:This product is circularly polarized, mainly used to increase color density, deepen the sky blue, highlight white clouds, and eliminate the reflected light from non-metallic surfaces such as glass or water.
Polarizer Polarizer, also called polarizer, PL for short, is a kind of color filter. The excellent function of a polarizer is to selectively let light that vibrates in a certain direction pass. It is commonly used in color and black-and-white photography to eliminate or weaken the strong reflection of non-metallic surfaces, thereby eliminating light spots. For example, in scenery and landscape photography, it is often used to express the texture of objects in strong reflections, highlight the scenery behind the glass, darken the sky, and express the blue sky and white clouds. A piece of tiny polarizing crystal with orientation effect is sandwiched by two pieces of optical glass(Like mica)composition.
The principle of circularly polarized light is when two beams of the same frequency and vibration direction are perpendicular to each other, and there is (2n+1/2)πThe phase relationship of the two planes of polarization can be superimposed to obtain circularly polarized light; when the linearly polarized light is perpendicular to the quarter-wave plate, if the vibration direction of the linearly polarized light is clamped to the optical axis of the quarter-wave plate Angle is plus or minus 45°When, the light emitted from the quarter wave plate is circularly polarized light
【effect】:
1. Reduce the brightness of the blue sky. By rotating the lens to absorb many polarized light in the diffuse reflection, the intensity of the sky light can be reduced, the sky is darkened, and the contrast between the blue sky and white clouds can be increased.
2. Control the reflection of non-metallic. When the light is projected on the surface of smooth objects, such as water, glass, painted furniture, etc., it will usually produce strong single reflection light, which will become the highlight point in the photographic picture. The shooting is affected, because the CPL lens is added for shooting to improve the image quality and the sharpness of the picture.