List of photographic terms with explanations in Basic English 
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While looking at pages relating to photography and images on Commons, users often encounter terms that might be difficult to understand. This is particularly true if the user's knowledge of photography is very basic, or if they are not a native speaker of English. This page aims to explain several of these terms in basic English, with the help of images. If you meet a term that you do not understand, please add it at the bottom of this page. If you know what one of these terms mean, please explain it is as simple a language as you can. Please provide:
Please try and write in basic English: most users are not Native English speakers, nor are they photographers.
Photography Terms 
Angle of view 
A term used by some lens manufacturers, although generally the term Field of View (FOV) is used. FOV is the viewing angle in degrees covered by a given lens. A 12 mm. wide angle lens may have a FOV exceeding 120º, while a 300 mm. telelens will typically have a FOV less than 35º.
See also Focus on Wikipedia
Digital SLR (Single Lens Reflex). This is like a film camera, but instead of a film, there is an electronic sensor. It has a view finder. When you look through the view finder, a mirror lets you see through the taking lens. When you take a photograph the mirror moves out of the way. You can buy extra lenses to fit onto a DSLR. They can be very expensive. These lenses let you take photographs in very poor light, and very difficult situations, such as taking photographs of fast cars or sportsmen.
"Bridge-type" camera 
A "bridge-type" camera is a relatively new term. It is a camera with some controls, yet still has an automatic mode. The lens of these cameras cannot be changed. There is a view finder but it is an electronic screen. The camera is very flexible and generally good value for money.
Close-ups of 1:1 
A 1:1 closeup is a photograph take with a magnification such that the image formed on the film or sensor is the same size as the original object.
To focus 
To focus means to adjust the lens so that one part of your photograph is sharp. This is usually done automatically; some people choose to do it manually, although it is possible only with a DSLR camera.
To focus on 
To focus on something means to choose a part of the photograph in which you are interested, and thus want to be sharp.
In focus 
When a photograph is taken in focus, it means a part of the photograph is sharp.
Out of focus 
When a photograph is taken out of focus, it means the whole photograph is blurry.
Today all cameras allow you to change the focal length you are using. A second meaning of zoom, is to change the focal length. You say you are zooming in to 300mm, and zooming out to 35mm. The reason for this is historic.
Panning means moving the camera in order to follow a moving subject, take a clear picture of it, while the background will be blurded by movements.
Depth of Field 
Depth of Field (or DOF) is decided by the given lens opening (aperture) or f/stop. A small aperture (large f/number: f/16, f/22, etc.) will give "large DOF"; the image will be sharp/in focus from the foreground to infinity. A large aperture (small f/number: f/1.8, f/2.8, etc.) will give "shallow DOF". Depending on the type of lens used, DOF can be as shallow a a few millimeters, for example when using Macro lenses or extension tubes. Good photographers know how to make use of DOF and/or use selective DOF to make their images more interesting. Some types of special lenses, known as "Lens Baby" can generate a very specific type of selective DOF, reminiscent to the imperfections of turn of the XIX century lenses, where the image gets blurred and/or distorted towards the edges. With a "Lens Baby" however, this selective focus blur/distortion can be controlled.
Technically, a macro image is an image taken with 1:1 or greater magnification at the sensor/film plane. This means that if the object were 30mm across, it would measure 30mm across on the film negative. Greater than 1:1 magnification is possible with true macro lenses, for example a 4:1 macro setting would enable a 5mm object to be 20mm across on the negative/sensor. The term has become misappropriated and used to refer to 'close up' photography in general, particularly by manufacturers of point and shoot cameras, whose lenses are rarely if ever come capable of anything close to true 1:1 macro magnification. Modern digital cameras have a macro mode. This is a mode which enables close focusing, allowing the maximum possible magnification from the camera/lens.
Extension rings/tubes 
Used on both digital and film SLR's as well as Mid-Format cameras (6x6, 4,5x6, 6x9 cm.) to achieve close focus in close-up and macro photography. To achieve close focus on large format (4x5", 8x10") technical cameras, bellows are used.
Still needs defining.
Still needs defining.
It is the ability to show you things in a bigger view.
Zoom, optical zoom and digital zoom 
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