A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Honeycomb Grid - These are honeycomb-like frames that admit light into the centre but limit it at the periphery of the light contour, to give a toned down, concentrated point of light.

Halation - Blurred effect at the edges of a highlight area of a photograph caused by reflection of light that passed through the film. The light is reflected from either the surface of the film or the camera back.

Haze - An atmospheric condition characterized by fine particles of dust, smoke or moisture in the air that causes a loss of contrast in an image because the haze scatters light particles.

Headshot - Photograph, often in black-and-white, of a person's head and shoulders. Promotional headshots of performers and models are usually printed in 8" by 10" size.

Hide - Hide, another word for “Blind,” is an enclosure that provides a concealed camera position within, and overlooking, an animal’s territory. It is called a "hide" because it is meant to hide a photographer from the animals’ vision.

High contrast - An image that is high in contrast (as opposed to a "flat" image), wherein the negative, slide or print contains a wide density range.

High key - An image that is mainly made up of light tones, which relatively few mid-tones or shadows.

Highlight - The brightest area of a subject or scene.

Highlight details - Details that are visible in areas of an image that are brightest.

Honeycomb Grid - These are honeycomb-like frames that admit light into the centre but limit it at the periphery of the light contour, to give a toned down, concentrated point of light.

Hot shoe -  A hot shoe is an accessory holder (or accessory shoe) on a camera that embodies an electrical contact so that, for instance, a flash unit can be triggered to go off. A small, portable flash that has a contact on its "foot" can be connected to a hot shoe, which will cause the flash to fire when you press the shutter release.

Hyperfocal distance - Technically, it is the distance between the camera and the hyperfocal point. But, in practice, Hyperfocal distance is a lens setting technique that allows you to shoot sharp pictures within a certain distance range without having to refocus. When the lens is focused on infinity, the hyperfocal distance is the distance of the nearest object in a scene that is acceptably sharp.

Hyperfocal point - When the lens is focused on infinity, the nearest point to the camera that is considered acceptably sharp is the Hyperfocal point. By focusing on the hyperfocal point, everything beyond it to infinity remains in acceptable focus, and objects halfway between the camera and the hyperfocal point will also be rendered acceptably sharp.

Hypo - A fixing bath composed of various chemicals including sodium thiosulfate and water. In processing film or prints, this solution removes any light-sensitive, silver-halide crystals that were not acted upon by exposure to light or by the developer, thereby stabilizing the final print or negative so that it will no longer react to light.