[ SONY Slim CPL (Circular Polarizer) product photo ]
Sony VF-77CPAM Slim CPL (Circular Polarizer)
Eliminate or reduce non-metallic reflective surface. Such as glass, display windows, water, paint and plastic surfaces of the reflective surface. 1. Control the brightness of the sky, so blue days darken. Shooting outdoor or landscape pictures, sometimes the sky on the screen to control light and dark shadow tone, and the clouds darken up the screen brightness of the sky brightness and the distance between ground features, the purpose of adjusting the screen fine tone. Lan Lan days of pressure as the clouds are even more outstanding film transfer. 2. For variable color filter with a neutral gray. Polarizer is equivalent to half a grade in the mirror with ash. Mirror in the gray but not replace the need to please separate purchase in the gray mirror ND3, 6,9. 3. To improve the color saturation of color images using a polarizer, polarized light can be reduced or eliminated, to eliminate reflected light, while also improved to varying degrees, the image color saturation. In the color landscape photography, the use of polarizing microscopy has been a general emphasis on the use of floral still life shot, also colorful, clear, pleasing color masterpiece. The difference between CPL and PL and choice: a polarizer into linearly polarized lens (PL) and circular (ring) polarizer (CPL) 2 种. The camera's AF system is the need to focus the lens into the light, the linear polarization by rotating the lens PL filter, filter out a certain direction of the polarized light, the camera's AF function makes certain failure or error. The circular polarizer CPL of the latter group can pre-set lens through the lens of the polarized light cylindrical week rotation, through the optical components into the AF system, which had no effect on the camera AF system. Therefore, including the SLR digital camera nowadays most often used is circular (ring) Polarizer CPL. Two from the upper and lower polarizing composition, rotation on the group structure, to control the degree of elimination of polarized light