Contest entries
 Tarpon Undercarriage   Photographed at Macabuca/Turtle Farm on Grand Cayman. I hovered in front and below the  Tarpon Cave  where they hang out during the day. Lying close to the sandy bottom I shot up against the blue and coral.
By Susannah H. Snowden
posted 22:06 CST Today (within the last hour)
I was at work mapping a dive site and spotted this tiny Juvenile Parrotfish in a barrel sponge.       
Olympus OMD EM5  12 50mm lens  f16  1/250  ISO 200
Nauticam housing  Single Sea   Sea YS D1 strobe
By Henley Spiers
posted 21:20 CST Today (1 hour ago)
Just for the Frills ... Nudibranch   Glossodoris atromarginata. Ang Thong  Gulf of Thailand  EM5 Oly 60mm 1/250 f22 iso100 Inon D2000
By Stefan Follows
posted 21:13 CST Today (1 hour ago)
Red Crab
By Marco Gargiulo
posted 15:27 CST Today (7 hours ago)
Gilberto getting  curious  with my fisheye macro port seacam  Crocodylus acutus
By Mathieu Foulquié
posted 15:00 CST Today (7 hours ago)
Rockfish in Monterey
By Morgan Ashton
posted 14:18 CST Today (8 hours ago)

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27 Entries Found

HyperlinkA link that allows the viewer of a page to navigate or ‘jump’ to another location on the same page or on a different page
Hyper Focal DistanceThe distance setting (of a lens) that gives the greatest possible range of distances at which objects appear to be in focus.
HydrophoneUnderwater microphone
huntingthe lens can continually seek focus, but does not lock on, usually due to low light or insufficient contrast
HueThe name of a color, e.g. red, green or blue
HTMLHyper Text Markup Language. The code that is used to describe the contents and appearance of a web page
HSBThis mode uses a color’s hue, saturation, and brightness to define it. Hue is defined by its location on the color wheel and is
HQHigh-quality
HousingA casing or box with waterproof seals designed to contain a camera or other equipment in such a way that it can be used underwater.
HotShoeA camera accessory shoe with electrical connections for a flash unit on top of a camera.
HosepipingThe tendency to make unnecessary movements
hosepipeshoot everything in sight!
History PaletteShows the list of steps taken to create the image that you are currently working on. The History palette helps you correct errors (by storing what you’ve done to a file previously) and allows you to return to a point before a particular edit was made simply by clicking on the appropriate step.
History BrushA tool in Photoshop with which a previous state or history can be painted
HistogramA graph of brightness along the horizontal axis (black to white) and the number of pixels at each brightness level on the vertical axis.
HighlightArea of subject receiving highest exposure value
High Dynamic RangeA picture type that is capable of storing 32 bits per color channel. This produces a photo with a much bigger possible brightness range than found in 16 –or 18-bit per channel photos. Photoshop creates HDR images with the merge to HDR feature
HIDHigh intensity discharge lights
Hi8Highband Video 8
HertzHertz is the unit of frequency, and is synonymous with 'cycles per second' (c/s).
Helical ScanningAll modern videotape recorders use helical scanning, and the technique is also used to write CDquality audio on to tape in DAT (digital audiotape) machines.
healing brushthis tool lets you correct imperfections, causing them to disappear into the surrounding image.
HeadroomThe space between the top of the subject and the top of the picture
HDRHigh Dynamic Range image
HalftoningTo create the illusion of continuous tones when printed, images are broken down into a series of dots. This process is called halftoning. Varying the sizes of the dots in a halftone screen creates the optical illusion of variations of gray or continuous color in the image.
HalftonesHalftones are dots of a specific shape, such as an ellipse or a circle. Halftones dictate how much of each color goes on the material at press time. Varying how large or small the dots are determines the actual color printed
Halftone PatternSimulates the effect of a halftone screen while maintaining the continuous range of tones.
27 Entries Found