D converter

A/D converter
A device found in digital cameras and scanners that converts analogue picture information (continuous tone subject) to digital data
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A/D converter
Techniques Glossary A/D converter
A device found in digital cameras and scanners that converts analogue picture information (continuous tone subject) to digital data (digital image).

A/D Converter - A device that converts analog information (a photograph or video frame) into a series of numbers that a computer can store and manipulate. All digicams use an A/D converter, the higher the bit rate the better the output.

A-D Converter
The A-D Converter converts the analog signal that is emitted from the image sensor into a digital signal.
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A/D converter
A device used to convert analog data to digital data. Analog data is continuously variable, while digital data contains discrete steps.
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A/D Converter
Analogue to Digital Converter; the device that converts analogue data (e.g. a picture) into the required digital signal.
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All digital instruments use an A/D converter to convert the input signal into digital information. The output signal does only change at special times and can only take special values - quantization.

Most digital cameras use a 10 to 14-bit A/D converter, and so their theoretical maximum dynamic range is 10-14 stops. However, this high bit depth only helps minimize image posterization since total dynamic range is usually limited by noise levels.

This scanner has a 14 bit A to D converter with 42 bit color sampling. The Coolscan 4000 has a set of scan enhancement tools that are unparalleled within its peer group of scanners.

The solid, fixed converter lens and/or accessory mount with its small, 28mm threaded ring creates an immediate link to an idea few other manufacturers have exploited, and none as well as Nikon.

You didn't say what brand converter lens you're using. Many are cheap and poorly-made and can cause distortion, chromatic aberration, and other problems and are often quite soft, especially on the edges, as you've found.

Nikon P5000 with TC-E3ED Converter
Of course the P5000 has a slew of available accessories.

For example, some use 12-bit A/D converters while others use 14-bit A/D converters. In principle 14-bits are better than 12-bits, but in practice I haven't noticed a significant difference (and I do shoot with both 12-bit and 14-bit A/D cameras).

When you set a higher ISO speed, amplifiers in the image sensor's circuitry increase the gain before sending the image data to the A/D converter to be digitized.

CCDs are analog sensors, the digitising happens when the electrons are passed through the A to D converter. The A to D converter converts the analog signal to a digital file or signal. See also "CMOS" below ...

The analog signal is then run through an analog to digital converter (A-D Converter), where it becomes a pure digital signal. Then it is again put through a series of electronic filters that adjust the white balance, color, and aliasing of the image.

DXP
Short for Digital Extended Processor. Definition for certain A/D converters or signal editing parts from Sony.
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A type of sensor that is surrounded by circuitry that processes the values gathered by its pixels sequentially. An analogue-to-digital converter (A/D Converter) translates each pixels value into a digital value in order to resolve an image.

0 lens on a Tough camera and converter-lens compatibility to create a versatile system camera. The combination of durability and outstanding image quality make it possible to shoot in even the harshest conditions.

CR2 files; all of which are incompatible with each other and require updated image viewer and converter programs. This lack of openness is troubling.

High speed image recording is acheived through four parallel channels processed simultaneously. A new improved ASIC chip and optimized A/D converters are claimed to provide improved color accuracy and smoother transitions across the tonal range.

It isn't unprocessed data as you may have read-the sensor creates analog information that must be processed into digital data. This is accomplished with the A/D converter and is a complex engineering challenge that, luckily, ...

For one thing it’s bundled with Photoshop CS2 and Photoshop Elements but it’s also a very good converter that shares a lot of working conventions with PS which makes things easy.

See also: Image, Digital, Light, Camera, Speed