Photography terminology (2)

Macro)Images taken at an extremely close distance.

Macro lens (macro lens)Used to take extreme close-range images.

Macula lutea)Yellow area of the retina. It is also called the central concave area of the retina, which can produce the clearest vision.

Magic light)See "golden time ".

Half portrait (midrange portrait)The portrait taken from the same distance generally includes parts above the middle thigh of the shooting object.

Model release)An agreement is signed to give the photographer the right to use the photo of the person they have taken.

Monocular Vision)Vision produced by the visual pulse of an eye.

Motor Drive)A feature of the camera allows the photographer to continuously take images (3, 5, 8, and so on) in a predetermined setting, only limited by the write speed of the camera cache and memory card.

Nanometer)One thousandth of meters.

Neutral-density filter)Neutral color filters with different density are used to absorb light. This type of filter does not change the final color of the image, but allows low ISO.

Noise)When the ISO is high or the light level is low, random pixels may appear in the image, especially in the shadow area.

Normal lens (normal lens)Such a lens, that is, the arc of the projected light, just covers the diagonal distance of the image sensor. It is very similar to our vision.

Orientation)Describes how to hold a camera: horizontal, vertical, or angle between the two.

Orthogonal line)The reference lines in the Perspective grid help us locate objects and determine their shapes relative to the horizontal lines and vertices.

Panning)Move the camera as the object moves. Moving a lens usually causes a Blurred background behind a clear shooting object.

Panoramic rectangle)The ratio of width to height. The width must be at least twice the height.

Pigment)Used as a colored material in paint or ink.

Pixel (pixel)The short form of pictureelement is the smallest unit on a display or digital sensor that forms a digital image.

Surface (plane)An infinite set of two-dimensional lines.

Plane of critical focus)The plane parallel to the camera's digital sensor, in which the focus is the clearest.

Point)The smallest element of a line.

Polarizing filter)A filter that prevents stray light from entering the sensor to reduce the reflected light on a non-metallic surface.

Portrait (portrait)Character photos.

Pose)Arrange the shooting object.

Primary Color)One of the three colors on the Color disk cannot be mixed with the other two colors.

Pupil (pupil)The eye allows light to enter the open part of the retina.

Rear curtain sync (Rear curtain sync)Adjust the flashing light only when the shutter is opened. When the rear curtain is used to synchronize the delayed flash, the surrounding light on the shooting object is blurred behind the shooting object, freezing the flash. The final result is a frozen fixed object, followed by a fuzzy drag-and-seek action. ,

Redeye (redeye)The results produced by flashlight exposure on the vessels behind the retina due to lower light levels and enlarged pupil.

Reflective Meter)See the metering table ".

Resize)Change the image size.

Resolution)The total amount of available data in any given area usually refers to the details revealed. In digital imaging, resolution measures are the number of pixels per inch (PPI ).

Retina (retina)The area at the top of the eye, including the visual sensor of the eye.

RGB Color System)A color system that uses red, green, and blue as the primary color. These colors are produced from light.

RGB Value)The total amount of red, green, and blue information in any given pixel can be from 0 to 255.

Rod cells (rods)Visual sensors are several hundred times more sensitive to light than cone cells. They produce a colorless visual representation that allows you to see the general outline of an object in a dark light.

Trigger (Rule of thirds)This rule indicates placing the interest center in the image on an intersection of the grid.

Ryb Color System)A color system that uses red, yellow, and blue as the primary color.

Saturation)Grade of the color phase purity.

Secondary color)A color that is a combination of the primary colors of a given color system.

Selective focus)The shortest depth obtained by selecting an aperture.

Selective vision)A Physical Function of the eyes, that is, only the center of the eyes can clearly see things. It is also a brain action, that is, it only responds to certain stimuli to avoid overload.

Shade)Any color that is mixed with black.

Shadow)The object is illuminated in a dark area.

Shutter speed)The length of time when the camera shutter is turned on and off to allow light exposure to light-sensitive sensors.

Softlight)Light from a wide, scattering light source is diffuse when it is exposed to a shooting object.

Solid (solid)Objects with three-dimensional (length, width, and height.

Spot metering)In general, the angle of view of the Light metering table is 1 to 5 degrees, used to accurately measure the light reflected or emitted from the shooting object.

Stereoscopic Vision)Vision completed by two Eye Visual pulses leads to 3D images with depth, distance, height, and width.

Still Life)Any arrangement of small objects is usually placed on the desktop.

Strobe)Storage light emitted by a flash device in the camera or attached.

Sunny 16 rule)The rule states that in a sunny day, when the sun is behind the photographer, two hours after the sunrise to two hours before the sunset, when shooting objects directly from the sun, the exposure should be f/16, and the ISO setting should match the shutter speed.

Symmetry)Indicates that elements are arranged in the same arrangement at both ends of an imaginary line.

Telephoto Extender)A device that expands the remote image range by 1.6 or 2 times to reduce the light level and slightly soften the image.

Telephoto lens)A lens is smaller than the normal lens's angle of view for a given sensor.

Terminal Point)At this point, your eyes are rested.

Light color (Tint)Any color that is mixed with white.

Tone)Any color.

Tripod (tripod)A device used to stabilize a camera.

Vanishing Point)A point on the horizontal or vertical axis of the scenario. The object is located in the space of the dimension table.

Visual spectrum)Arrangement of Electronic wireless wavelengths visible to human eyes.

Wavelength (wavelength)The distance between a wave of light, heat, or other energy and the next adjacent wave or valley.

White Balance)The color balance of the light that shines in the environment is adjusted to white and displayed as white without adding other colors.

White Card)A pure white card used for area metering or white balance of the camera.

Wide angle lens (wide-angle lens)For a given sensor, the angle of view is larger than that of a normal lens.

Working Distance)The distance between the camera and the specified object.

Wratten Filter)A standard system color filter that is used to change the color of light emitted to an image sensor.

Wratten number (Wratten numbers)A numbering system used to standardize the color of a filter.

Partition)One of the 11 tones used in the partition system, used to match the light metering table readings with the black and white tones.

Zone of focus)The clearest area in the image.

Zoom Lens)Lens with multiple focal lengths.

 

Aperture (Aperture)The lens aperture is a removable light control device in the lens barrel. It controls how much light passes through the lens into the camera. See "Level F ".

Aperture Priority (Aperture prority)In aperture first (A or AV) mode, the photographer selects the desired aperture and then sets the shutter speed based on the camera's needs.

Backlight)The shooting objects of backlight are illuminated from the back.

Color temperature)For more information, see "kairman ".

Contrast range (contrast range)The ratio between the black of the shadow and the white of the highlight is also called the contrast range.

Crosslight)See "side light ".

Directional Light)The direction in which the light comes from. See "Backlight", "side light", and "top light ".

Filters)Glass or optical resin that is placed before the lens to affect the image in the camera. There are three basic types of filters: gel, screw filter, and slide filter. See "gel", "Screw Filter", and "sliding filter ".

Flash sync speed)The flash synchronization speed is the fastest shutter speed that the camera can achieve for a complete flash exposure. In most cases, the shortest shutter speed that can be used for flash is about 1/125s or 1/250 s, but for the sake of accuracy, it is best to refer to the camera manual. A digital camera with built-in flash and dedicated additional flash will not start the flash when the exposure is incorrect due to improper operations.

Level F (F-stop)Each step in the aperture is called Level F. The smaller the F level or F number, the larger the aperture actually opens, and the larger F level indicates a smaller aperture, that is, to let less light into the camera. F is the ratio of the focal length to the valid aperture diameter.

Gel (gels)It is a very thin resin piece placed on the Front Bracket of the lens. Gel is generally used for color correction. The gel can slowly increase the effect to precisely change or correct the image.

Golden hours of light)It is better to say that the prime time of the light, when the angle of the sun begins to become a small angle between the sun light and the horizon. Generally, Everything slides into the shadow for a short period of time. This period is called prime time because the light is so warm that it is golden or amber. Warm colors and long shadows make prime time a time of passion for photography.

Gradient gray density filter (graduated neutral density filter) This filter is useful in landscape photography, especially during sunrise and sunset. The bottom of the filter is colorless, the top is neutral gray, and the middle is the gradual change between the two. The gray part, that is, the neutral density, only allows a small amount of light to enter. The filter is used to darken the Bright Sky and make its exposure close to the exposure in the shadow foreground.

High key)Bright light is a white or light-colored photo object that illuminates a white or light-colored background. See "dark colors ".

Incandescent light)Light from incandescent bulbs is the most common light source in most homes. This very warm light source can be used in many shooting scenarios, but incandescent light has its own limitations due to its low level of output light.

Isoiso is the acronym of International Organization for Standardization (International Organization for Standardization), an organization that sets international and commercial standards. In digital photography, ISO is a measure of Light Sensitivity of digital sensors. Digital sensitivity is equivalent to film speed in traditional cameras. A digital camera can provide film speeds from 50 to 3200. The standard ISO settings used most of the time are 100, 200, and 400.

JPG/JPEG watermark (File Name: .jpg)Represent jointphotographic expertsgroup (joint image Expert Group), which is the name of a standard committee. JPEG is a compressed image file and is considered lossy because it discards some image data based on specific parameters during compression, and then uses advanced algorithms to decompress or open the file.

Kelvin)The color of light is measured by kairman (K), called William Thomson, the first generation of baronkelvin, a 19-century physicist. The unit is based on the absolute value of energy. Therefore, 0 K is the temperature when all energy is lost. In this example, 0 K is equivalent to-459.69 ° F. In the spectrum, 5500k is white, a higher color temperature is blue, and the appearance is cooler; a lower color temperature, such as yellow, orange, and red, is warmer on the outside.

Light Quality)Light Quality is generally defined as how strong or soft the light is, which means how fast the transition from light to shadow is. Bright sunlight is a strong light, while cloudy weather is usually soft. Strong light comes from a small light source, while soft light comes from a wide light source. The quality of light determines the mood of the photo.