start:knowledge:photography
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| start:knowledge:photography [2025/09/25 17:29] – [Terminology] florian | start:knowledge:photography [2025/09/25 17:30] (current) – [Terminology] florian | ||
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| Stands for International Standards Organization and represents the sensitivity of your camera’s digital sensor to light. The lower the number (ISO 100), the less sensitive, the higher the number (ISO 3200) the more sensitive. A higher ISO allows you to shoot in low light conditions.\\ | Stands for International Standards Organization and represents the sensitivity of your camera’s digital sensor to light. The lower the number (ISO 100), the less sensitive, the higher the number (ISO 3200) the more sensitive. A higher ISO allows you to shoot in low light conditions.\\ | ||
| - | __Shutter speed: | + | **__Shutter speed:__**\\ |
| The amount of time the shutter is opened during an exposure. The shutter speed controls motion. Use a fast speed (like 1/2000th of a second) to freeze motion, or a slow one (1/4 of a second or longer) to blur moving objects.\\ | The amount of time the shutter is opened during an exposure. The shutter speed controls motion. Use a fast speed (like 1/2000th of a second) to freeze motion, or a slow one (1/4 of a second or longer) to blur moving objects.\\ | ||
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| **__Tilt shift lens: | **__Tilt shift lens: | ||
| A lens that attempts to recreate the movements available when using a view camera. Being able to tilt the front lens element allows for the realignment of the plane of focus. Shift allows adjusting the placement of the subject within the frame without angling the camera, thus keep parallel lines from converging. This is a popular lens for architectural and landscape photographers and is becoming more widely used by portrait photographers for creating a unique stylized look.\\ | A lens that attempts to recreate the movements available when using a view camera. Being able to tilt the front lens element allows for the realignment of the plane of focus. Shift allows adjusting the placement of the subject within the frame without angling the camera, thus keep parallel lines from converging. This is a popular lens for architectural and landscape photographers and is becoming more widely used by portrait photographers for creating a unique stylized look.\\ | ||
| - | __Camera resolution: | + | |
| + | **__Camera resolution: | ||
| Expressed in megapixels is the dimensions your camera’s sensor is capable of capturing. For example, Canon’s new 6D has a resolution of 5472 x 3648 which equals 19,961,856, which they’ve rounded off to 20 megapixels. This is not the only factor in image quality, but generally the large the number, the larger prints you can produce from it without loss of quality.\\ | Expressed in megapixels is the dimensions your camera’s sensor is capable of capturing. For example, Canon’s new 6D has a resolution of 5472 x 3648 which equals 19,961,856, which they’ve rounded off to 20 megapixels. This is not the only factor in image quality, but generally the large the number, the larger prints you can produce from it without loss of quality.\\ | ||
| - | __File format jpg versus RAW: | + | |
| + | **__File format jpg versus RAW:__**\\ | ||
| Most DSLR’s have the ability to shoot both formats. If you choose JPG, the camera will shoot a RAW file, process it using the picture style you’ve selected in your menu, save it as a JPG and discard the RAW version. If shot in RAW the resulting file will be larger, carry more information (but the same pixel resolution, see above), and require software to process. It gives you the photographer more control over the final look of your image.\\ | Most DSLR’s have the ability to shoot both formats. If you choose JPG, the camera will shoot a RAW file, process it using the picture style you’ve selected in your menu, save it as a JPG and discard the RAW version. If shot in RAW the resulting file will be larger, carry more information (but the same pixel resolution, see above), and require software to process. It gives you the photographer more control over the final look of your image.\\ | ||
| - | __Full frame vs cropped sensor: | + | |
| + | **__Full frame vs cropped sensor:__**\\ | ||
| A full-frame sensor is roughly the size as the “old” 35mm frame of film. Lenses are made to create a circle of light just large enough to cover that area (covering power). In a cropped sensor camera the physical size of the sensor is smaller so it only captures a portion of the entire image the lens is projecting, effectively cropping part of the image out. Common crop factors are 1.5 or 1.6x so if you put on a 50mm lens it is more like a 75mm with a 1.5x crop factor.\\ | A full-frame sensor is roughly the size as the “old” 35mm frame of film. Lenses are made to create a circle of light just large enough to cover that area (covering power). In a cropped sensor camera the physical size of the sensor is smaller so it only captures a portion of the entire image the lens is projecting, effectively cropping part of the image out. Common crop factors are 1.5 or 1.6x so if you put on a 50mm lens it is more like a 75mm with a 1.5x crop factor.\\ | ||
| - | __Camera modes: | + | |
| + | **__Camera modes:__**\\ | ||
| Manual: full manual the user is setting the ISO, shutter speed, and aperture.\\ | Manual: full manual the user is setting the ISO, shutter speed, and aperture.\\ | ||
| Shutter priority (Tv on a Canon or S on a Nikon): the user is selecting ISO and shutter speed, the camera is then choosing the aperture to make a correct exposure.\\ | Shutter priority (Tv on a Canon or S on a Nikon): the user is selecting ISO and shutter speed, the camera is then choosing the aperture to make a correct exposure.\\ | ||
| Aperture priority (Av for Canon users, A for Nikon): the photographer selects the ISO and aperture and the camera picks the shutter speed.\\ | Aperture priority (Av for Canon users, A for Nikon): the photographer selects the ISO and aperture and the camera picks the shutter speed.\\ | ||
| - | __Vignette: | + | |
| + | **__Vignette: | ||
| A reduction of an image' | A reduction of an image' | ||
| **__Fiducial marker: | **__Fiducial marker: | ||
start/knowledge/photography.1758814142.txt.gz · Last modified: by florian
