A semi transparent glass or plastic device placed between the lens and the subject to alter the image outside the camera and lens. Common filters are UV – that remove Ultraviolet light which can cause color changes in an image.  Polarizers that allow you to line up the rays of light reflecting off water or glass and make them transparent again. In general a filter will Change, Remove, emphasize or change the density of a portion or all of the photo.  Many things that filters used to do can now be done in post processing uses digital filters.

The following two tabs change content below.
Is an amateur photographer and writer who enjoys sharing information with others. "Technical information sharing is a critical part of helping everyone become a better photographer. If you don't know it, you can't do it!" From Film to Digital, photography has changed a lot, but the idea of learning hasn't.

Comments are closed.

Pin It
[ + ]