![]() We are extremely demanding of quality and conservative in our evaluations of conditions, and will identify things most people can’t see. The Ansel Adams Gallery guarantees that every photograph we sell is in either pristine or excellent condition unless specifically stated otherwise. Our rating scale is pristine, excellent, very good, good, fair, and poor. Because the condition of a print can have a significant impact on its value, it is very important to take excellent care of photographs. Flaws or damage can include surface scratches, chipped emulsion, spots on the print or mount, mildew or other environmental damage. Refers to the physical condition of a particular print. Archival ProcessingĪ generic term for multiple types of processes that have the intent of reducing as much as practicable, or stabilizing, the quantity of materials and chemicals that can lead to deterioration. The term archival is sometimes used with respect to certain color photographic techniques to describe their longevity or color fastness. Archival materials are acid-free, and sometimes include a buffer to prevent acidic penetration of material. Acids in paper, cotton, cardboard, wood and other materials will, over time, cause deterioration in the artwork. ArchivalĪ feature of some materials used in presenting or storing fine art work. A small aperture will result in a greater depth of field and generally a sharper image than a larger aperture. ![]() The aperture also establishes the depth of field and the range of focus. The aperture controls how much light is transmitted to the film, which, in conjunction with the film speed, determines the length of the exposure. The size of the opening of the lens, measured in “f-stops.” The lens aperture or f-stop is simply the diameter of the lens opening expressed as a fraction of its focal length.
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