Digital Photography

Saturday, December 24, 2005

Digital Camera Lingo

These aren't necessarily what every manual or camera manufacturer uses for each of these terms, abbv. and letters but it may help you use the index in your manual:



A - Aperture Priority Shooting

A E Lock - Use for high contrast light situations

A F - Auto Focus

APO - ( apochromatic) lenses that use internal elements to bring all colors of the visible spectrum to a common point of focus, creating a sharp image.

Bit depth - color depth, determines the maximum number of colors that can be represented at a time - camera sensors typically have 12-bit per channel color - can be 8 bit - 16 bit - 24 bit - 36 bit

BKT - Auto bracketing

Camera raw file - a photo file containing unprocessed information, exactly as it comes off the sensor before in camera processing. You can then process the file on your computer.

CMOS - ( Complementary Metal Oxide Semiconductor ) a sensor technology that emcompasses all required camera circuits on a single chip.

digital zoom - don't confuse this with OPTICAL zoom ( it crops - it doesn't add detail to image )

dpi - dots per inch ( resolution when printing )

DOF - depth of field

DPOF - Digital Print Order Format

DSLR - Digital Single Lens Reflex ( think of a digital version of the film 35mm changable lens camera )

DVD - Digital Versatile Disc

ESP - meters light at and around subject

Erase - Delete - Remove - gets rid of images on memory card

EXIF - Exchangeable Image File - data - metadata - information added to image file by camera

File extensions - common image extensions - jpg - tif - png - nef - crw

Green Lamp - focus lock

HQ - high quality

HI - high speed sequential shooting

Histogram - a bar chart that shows the distribution of an images pixel values

Image Resolution - how many pixels

IPTC - International Press Telecommunications Council ( what you can change in meta data file)

JPEG - .JPG - .JPEG - .jpg - Joint Photographic Experts Group ( a file extension for images )

LCD - Display where you view menues and pictures - on P&S can be used as viewfinder

M - manual shooting

Macro - up close focus - 3" or closer

Meta data - information recorded by the camera about each image taken

Megapixel - 11 megapixels = 11 million pixels ( 1MP - 3MP = good 4x6 4MP - 6MP = good 8x10 7MP + = bigger than 8x10 )

Memory Cards - think of them as removable harddrivers for your computer camera
Kinds of cards - Compact Flash - Memory Stick - XD - SD - and others
Sizes of cards - 16MB - 32MB - 128MB - 256MB - 512MB - 1Gig - 2G - 4Gig - etc
Speed of cards - Ultra II fast than Ultra I - etc

MPEG - Motion Picture Experts Group ( file extension for movies )

Multi - meters light in many different spots in the image area

MP4 - movie file extension - MPEG4 - also are MPG2 and MPG3 extensions

My - my mode

MF - Manual Focus

Optical Zoom - 3X - 6X - 10 X ( think of these as 3 feet closer, 6 feet closer etc )

P - Program shooting

P&S - Point & Shoot Digital Cameras ( usually have a fixed lens )

Pictbridge - Camera to printer ( no computer )

ppi - pixels per inch

Pixel - picture element

PNG - ( Portable Network Graphics ) supports 24 bit images, png preserves transparency in grayscale and RGB images

RAW - working with camera raw files lets you set the proper white balance, tonal range, contrast, color saturation, and sharpening.

RGB - Red, Green, Blue values of pixels
RAW - image file extension ( camera doesn't do any processing of image )

S - shutter priority shooting

SHQ - Super High Quality JPG

Spot - meters just auto focus

SQ1 - mid resolution ( use for images that will be used for e-mail and not printed )

SQ2 - low resolution ( use for images that will be used for web pictures)

Super Macro - can focus at 1.5"

T - telephoto

TIFF - TIF - .tif - Tagged Image Format - image file extension

OS - Operating System - 95 - 98 - ME - 2000 - XP - MAC

USB - type of cable that connects to computer

W - wide angle

WB - White Balance

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