Canon EOS 550D technology explained

A brief list of features can be found on the home page. Full UK specs are listed on our specifications page.

The 550D's 18 Megapixel APS-C CMOS sensor is designed and manufactured to work in combination with the Canon DIGIC processor. CMOS technology seamlessly integrates advanced noise reduction circuitry at each pixel site which delivers virtually noise-free images. With lower power consumption, it also contributes to longer battery life.

The Canon EOS-550D features the CMOS sensor which has amplifiers at each pixel site. This means that unnecessary charge transfer operations are avoided, vastly speeding up the process of getting the signal to the image processor.

DIGIC 4 Processor Information

Image data is processed by the DIGIC image processors before being written to the camera's memory card. This uses advanced algorithms which thus ensures natural colours, tonal graduation , accurate and white balance.

These fast processing speeds result in highly a responsive camera operation with near-instant start-up times.

DIGIC integrates all key processing functions and so power consumption is kept to a minimum.

EOS 550D Integrated Cleaning System

This combats sensor dust in three important ways: Reduce, Repel and Remove.
1. Reduce - Internal camera mechanisms are especially designed to minimise dust generation.
2. Repel - The special anti static fluorine coating is applied to the low-pass filter covering the front of the sensor so as not to attract dust
3. Remove - A Self-Cleaning Sensor Unit useing hi-frequency vibrations which shake dust from the infrared filter for a period of approximately one second after each start up.

The Canon EOS550D has also the amazing internal Dust Delete Data system, which maps the position of visible dust on the sensor. This is then be deleted automatically after the shoot with the latest Digital Photo Professional software.

Clear View LCD

The EOS 550D / Rebel T2i features a 7.7cm (3.0”) 3:2 Clear View LCD screen offering approx 720x480 pixel resolution with 1040k dots. This allows high-quality viewing of images and ultra-accurate focus checks. With a wide 160º angle of view, the Clear View LCD can be viewed in a range of environments with ghosting and reflections being eliminated thanks to the unique dual layer anti reflective coating. This combination of features enables photographers to shoot from many awkward angles.

Metering

The EOS-550D iFCL metering system has a 63-zone Dual-layer Metering sensor
Which uses focus, colour and luminance information to provie consistently exposed shots. All focus points provide distance information to the metering system to determine proximity to the subject and allow the algorithm to weight the exposure correctly

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The EOS 550D features a new metering sensor with 63 zones compatible with all nine AF points.

EOS Movie

The EOS-550D Movie function allows you to record 1080p HD movies with manual control and selectable frame rates.
Thanks to the large CMOS sensor, photographers have greater ability to control depth of field. Program mode allows photographers to easily shoot HD video without worrying about exposure settings – ideal when needing to capture split-second action

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In situations where the subject is further away, the EOS 550D’s Movie Crop function records with the central 640x480 pixel area of the sensor, creating an effective magnification of up to seven times the focal length of the lens.

Safety fears have prompted battery change for the Canon EOS 550D

The UK photographic magazine, Amateur Photographer has reported that Japanese safety laws have forced Canon to redesign the battery that is used to power its EOS 550D. There had been fears over exploding rechargeable batteries,

Canon's EOS 550D uses an 'LPE8' battery, which is different to the one used on previous models this has meant that a new mains power adapter was also required.

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