Gel filters are made of soft polyester and they are ideal at giving you precise color and temperature control over your photos. Filters are a great way to take your photography skill and expertise to the next level.
Square gel filters are available in assorted colors and temperatures with the most popular sizes being 3x3 and 4x4. Gels filters can be taped over a lens if needed and are generally considered to be more or less disposable filters. However, most people use a use a gel holder to mount the filter. Gel holders are relatively inexpensive depending on the brand and the make of your lens and camera. Gels filters can be trimmed and cut to size if needed. They are reminiscent of filters used in stage lighting. Gel filters are used for color correction and are generally known as color filters.