Entries to the annual contest close 31st December 2018

17 days to go

Contest entries
Anemone
By Todd Moseley
posted 11:42 CST Today (5 hours ago)
Shark dive. Close up with a black tip
By Marco Calvani
posted 09:46 CST Today (7 hours ago)
The beautiful colors of juvenile abalone in an abalone nursery
By Peet J Van Eeden
posted 09:21 CST Today (7 hours ago)
Mediterranean Scorpionfish portrait
By Antonio Venturelli
posted 07:47 CST Today (9 hours ago)
SeaLion at Sunset
By Henley Spiers
posted 04:53 CST Today (12 hours ago)
Over the reef
By Hansruedi Wuersten
posted 04:00 CST Today (12 hours ago)

Photo Dive Sites
dive sites latestConcord Moreen
Egypt, Red Sea
dive sites latestKeelung, Taiwan
Taiwan, East China Sea
dive sites latestCape Maclear
Malawi, African Lakes
dive sites latestMatu
Philippines, Philippine Sea
dive sites latestHopkins Island
Australia
dive sites latestBlokkendam Noordz...
Netherlands
dive sites latestUmbrella or Mushroom
Philippines, Philippine Sea
dive sites latestKittiwake Wreck
Cayman islands, Atlantic (South)
dive sites latestTaketomi Island, ...
Japan, Sea of Japan
dive sites latestNuweiba
Egypt, Red Sea

Forums
forum latest your shot
By Leena Roy
01:44 CST Today (16 hours ago)
forum latest Panasonic ZS19 with housing
By buck3647
Yesterday
forum latest Amazing!
By Chelsea Holland
06:03 CST Today (11 hours ago)
forum latest Beautiful
By indianfish
Thursday, December 13, 2018
forum latest Beautiful!
By Chelsea Holland
13:39 CST Today (4 hours ago)


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54 Entries Found

Dynamic RangeDynamic range is the ratio between the whitest whites (DMin) and the blackest blacks (DMax). It may not be possible to capture the entire range of a scene photographically due to the limitations of the technology used.
DyesTypes of pigment
Dye sublimation printA high-quality print created using thermal dyes
DX codingPattern printed on the side of a 35mm film cassette, which is used by the camera to sense the required ISO/ASA filmspeed setting. The film speed is sensed by means of electrical contacts pressing against the canister, so dirt can cause miss sensing.
DVEDigital Video Effects Special effects eg. Page turning, patterns etc.
DVDigital Video
Dust & ScratchesReduces noise by changing dissimilar pixels. To achieve a balance between sharpening the image and hiding defects, try various combinations of radius and threshold settings. Or apply the filter on selected areas in the image.
Dub(Dubbing) recording or replacing voices
DSLRDigital Single Lens Reflex Camera. A camera that uses a mirror to redirect the image projected onto the film into the viewfinder. The mirror flips out of the way when the button is pressed to take the picture.
DropoutOccurs when a portion of oxide is missing on the videotape causing a small spot of light passing across the screen
droplet A droplet is a small application that applies an action to one or more images that you drag onto
Drop ShadowAdds a shadow that falls behind the contents on the layer.
DriverA special type of software that Windows uses to control a specific piece of hardware.
DRAM BufferAll digicams have a certain amount of fixed memory in them to facilitate image processing before the finished picture is stored to the flash memory card. Cameras that have a burst mode have much larger DRAM buffers, often 32MB or larger. This also makes them more expensive
DPOFDPOF (Digital Print Order Format) [deepuff ] is a system that allows digital cameras to specify images for printing. This allows consumers to easily get prints from (compatible) photo labs and stores information about number of copies, print size etc.
DPIDots per inch. Usually used in context of monitors but can also be a printing terms.
Dot gainthe inherent “growth” of a halftone dot when printed on paper, vellum, or film. A small dot can grow as much as 50 percent or more when printed. Dot gain can also occur when the ink is printed on the shirt.
Dome portLens port constructed as part of a sphere of uniform thickness for wide-angle underwater photography.
Dodge toolUsed to darken areas of an image or print. The Dodge tool’s name comes from the traditional photographer’s method of reducing the amount of light made available when exposing the film to get the picture.
DockingThe Palette Well offers a place to dock palettes that you don’t want on the screen but you still want to have access to without having to use the Window menu. To dock a palette, simply drag it from its place in the workspace to the Palette Well.
DNRDigital Noise Reduction. Cleanup process used when transferring analog video signals into the digital domain.
DNGAdobe’s Digital Negative format
DitherReduces visible banding related to gradients when using the Gradient tool.
DissolveFading from one image to another
Display Resolution(for your monitor) is usually 72 dpi so there is no point in having large files if they will only ever be displayed on a computer screen. Working backwards, for example, a 3 x 3 image needs 216 x 216 pixels.
DiopterA unit used to express the power of magnifying glasses. Also used as a name for screwin magnifying lenses, which can be fitted to the front of a camera lens.
DIN Deutsches Institut für Normung e.V. (DIN; in English, the German Institute for Standardization) is the German national organization for standardization and is that country's ISO member body
Digital ZoomDigital zoom is a feature that is more marketing ploy than anything else! Unlike Optical zoom, which is produced by the lens system physically changing focal length, digital zoom merely crops the image progressively.
Digital Negative formatAdobe’s open source Raw file format
Digimarc The Digimarc filters embed a digital watermark into an image to store copyright information.
DiffuserA device that increases the effective area of a lightsource, i.e. makes it less pointlike. This is usually a piece of opal or translucent plastic that can be fitted to the front of a light source.
DiffuseShuffles pixels in a selection to make the selection look less focused according to the selected option: Normal moves pixels randomly, ignoring color values; Darken Only replaces light pixels with darker pixels; and Lighten Only replaces dark pixels with lighter pixels. Anisotropic shuffles pixels in the direction of the least change in color.
Diffractionbending of light rays
DIBWindows Device Independent Bitmap. This is an alternative bitmap extension (to BMP) used by Microsoft Windows Bitmaps. This format is used extensively by computer operating systems for operations in memory. However, this is not a common format for general use.
Diameter(Greek letter 'phi'), abbreviation for 'diameter' (used because it consists of a line drawn across a circle).
DewA built in warning signal that appears in the viewfinder or a switch that automatically switches the camcorder off on detection of moisture on the tape or electronics
Device independentNot dependent on a particular item of hardware. For example, a color result that can be replicated on any hardware device
Device dependentDependent on a particular item of hardware. For example, referring to a color result unique to a particular printer
DespeckleDetects the edges in an image (areas where significant color changes occur) and blurs all of the selection except those edges. This blur-ring removes noise while preserving detail.
DescreenThe removal of half-tone lines or patterns during scanning
Desaturatethis command converts a color image to a grayscale image in the same color mode. For example, it assigns equal red, green, and blue values to each pixel in an RGB image to make it appear grayscale. The lightness value of each pixel does not change.
Depth RatingThe depth you can take underwater photo equipment to before it floods!
Depth Of Field PreviewA useful feature for SLR and DSLR cameras that allows you to preview the zone in your picture that will be in focus.
Depth Of FieldThe zone in your picture that is in focus.
DensityThe measure of opacity of tone on a negative
DelrinAcetal Homopolymer. Engineering plastic with sufficient hardness and dimensional stability for the manufacture of precision components (e.g. screw threads).
Delete EditingEditing by deleting scenes
DeInterlaceSmoothes moving images captured on video by removing either the odd or even interlaced lines in a video image. You can choose to replace the discarded lines by duplication or interpolation.
Defringereplaces the color of any fringe pixels with the colors of nearby pixels containing pure colors (those without background color).
DCXThis is a multipage PCX format that enables a file to contain more than one image. It is handled the same as a regular PCX file, except for the multipage feature.
DCSDesktop Color Separations format is a version of the standard EPS format that lets you save not only the file or image but also its CMYK or multichannel color separations you see in the Channels palette. DCS 2.0 allows you to save spot channels too. These files can then be exported to various other graphics programs, and their separations can be printed on PostScript printers.
DCDirect current (as opposed to AC) an electrical current that does not change with time, such as might flow when a light bulb is connected to a battery.
DATDigital Audio Tape. Tape format used to store computer data
D8Digital 8 Digital video recording system using 8mm tape cassette.
54 Entries Found