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Comparison Canon EOS 7D body vs Canon EOS 550D body

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Canon EOS 7D  body
Canon EOS 550D  body
Canon EOS 7D bodyCanon EOS 550D body
from £139.00 
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from £89.00 
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Camera typedigital mirrordigital mirror
DxOMark rating6166
Sensor
Sensor
CMOS (CMOS) /22.3x14.9 mm/
CMOS (CMOS) /22.3x14.9 mm/
Sensor size
APS-C (23x15.5 mm) /2 DIGIC 4 processors/
APS-C (23x15.5 mm)
Total MP1918.7
Effective MP number1818
Maximum image size5184x3456 px5184x3456 px
Light sensitivity (ISO)100-6400
100-6400 /hardware expandable up to 12800 ISO/
Sensor cleaning
RAW format recording
Lens
Mount (bayonet)Canon EF-S, Canon EFCanon EF-S, Canon EF
Manual focus
Image stabilizationis absentis absent
Photo shooting
Number of scene programs5
Frames per series (JPEG)130 шт34 шт
Frames per series (RAW)25 шт6 шт
HDR
White balance measuring
Exposure compensation± 5 EV, in 1/2 or 1/3 EV steps± 5 EV, in 1/2 or 1/3 EV steps
Auto bracketing
Exposure modes
auto
shutter priority
aperture priority
manual mode
auto
shutter priority
aperture priority
manual mode
Metering system
point
centre-weighted
sensor (estimated)
point
centre-weighted
sensor (estimated)
Video recording
Full HD (1080)1920x1080 px 30 fps1920x1080 px 30 fps
Video scene modes7
File recording formatsH.264H.264
Manual video focus
Maximum video length
 
memory limit
time limit /30 min/
memory limit /4 GB/
Connection ports
mini HDMI v 1.4
headphone Jack
microphone Jack
mini HDMI v 1.4
headphone Jack
 
Focus
Autofocus modes
one shot
tracking
in face
one shot
tracking
 
Focus points19 шт9 шт
Front / back adjustment
Viewfinder and shutter
Viewfinderoptical (pentaprism)optical (mirror)
Viewfinder crop1 x
Frame coverage100 %95 %
Shutter speed30 - 1/8000 с30 - 1/4000 с
Continuous shooting8 fps3.7 fps
Shutter typemechanicalmechanical
Screen
Screen size3 ''3 ''
Screen resolution920 thousand pixels1040 thousand pixels
Additional screen
Memory and communications
Memory cards typesCompactFlashSD, SDHC, SDXC
Flash
Built-in flash
Guide number1213
External flash connect
Power source
Power source
battery
battery
Battery modelLP-E6, DLCE6, MK-7D, HL-E6, BG-E7LP-E8, DLZ302C, BG-E8
Shots per charge800 шт
General
Materialmagnesium alloy
aluminium / plastic /stainless steel and polycarbonate polymer with fibreglass/
Protectiondustproof, waterproof
Dimensions (WxHxD)148.2x110.7x73.5 mm129x98x62 mm
Weight
820 g /without battery and memory card/
530 g
Color
Added to E-Catalogfebruary 2011february 2011

DxOMark rating

The result shown by the camera in the DxOMark ranking.

DxOMark is one of the most popular and respected resources for expert camera testing. According to the test results, the camera receives a certain number of points; The more points, the higher the final score.

Total MP

The total number of individual light sensitive dots (pixels) provided in the camera's sensor. Denoted in megapixels - millions of pixels.

The total number of MPs, as a rule, is greater than the number of megapixels from which the frame is directly built (for more details, see "Effective number of MPs"). This is due to the presence of service areas on the matrix. In general, this parameter is more of a reference than practically significant: a larger total number of MPs with the same size and effective resolution means a slightly smaller size of each pixel, and, accordingly, an increased likelihood of noise (especially at high ISO values).

Sensor cleaning

The presence in the camera of a special mechanism for cleaning the matrix from dust and other contaminants.

This function is found only in models with interchangeable lenses — "reflex cameras" and MILC (see "Camera type"). When replacing the lens in such cameras, the sensor turns out to be open, and the probability of its contamination is quite high; and extraneous particles on the matrix, at best, lead to the appearance of extraneous artifacts, at worst, to damage to the sensor. To avoid this, cleaning systems are provided. They usually work on the principle of ultrasound: high-frequency vibration "resets" debris from the surface of the sensor.

Note that no cleaning system is perfect — in particular, such systems are “too tough” for condensate, salt deposits and other similar contaminants. So the matrix may still need manual cleaning (ideally, in a service centre). Nevertheless, this function allows you to effectively deal with at least dust, which greatly simplifies the life of the user.

Number of scene programs

The number of scene programs provided in the camera design.

Scene programs are preset settings for some of the most common shooting scenes - for example, Portrait, Landscape, Sports, Sunset, etc. In addition to these presets, this list may include special effects and creative tools (such as color swap or fisheye), as well as exposure modes (see below). The presence of scene programs is especially useful for beginners and non-professional photographers, as it eliminates the need to tinker with each setting separately - just select the most suitable program, and all the necessary settings will be set automatically. The more scene programs the camera design provides, the wider its automatic adjustment capabilities.

Frames per series (JPEG)

The highest number of shots a camera can capture “in one go” in JPEG continuous shooting.

The technical features of modern digital cameras are such that during continuous shooting, photos have to be recorded in a special buffer, and only then, after the end of the series, they can be copied to a memory card. This buffer has a limited size, so the number of frames in one series is also limited. At the same time, we note that this indicator is usually indicated for shooting at the highest possible resolution (see "Maximum image size"); at lower resolutions, the volume of each image is reduced, and the number of frames in the series may turn out to be more than stated in the specifications.

JPEG, the most popular digital photography format today, is smaller and requires less processing power than RAW (see "Recording in RAW Format"). Therefore, in a JPEG series, as a rule, more frames are available to the photographer. However, in some models that have two separate buffers (for RAW and JPEG), it may be the other way around.

Frames per series (RAW)

The highest number of shots the camera can capture “in one shot” when shooting in RAW format continuously (see “Recording in RAW Format”).

The technical features of modern digital cameras are such that during continuous shooting, photos have to be recorded in a special buffer, and only then, after the end of the series, they can be transferred to a memory card. This buffer has a limited size, so the number of frames in one series is also limited. At the same time, we note that this indicator is usually indicated for shooting at the highest possible resolution (see "Maximum image size"); at lower resolutions, the volume of each image is reduced, and the number of frames in the series may be more than stated in the specifications.

RAW images take up more space and require more processing power than "finished" JPEGs. Therefore, the number of frames in a series of this format is usually lower than that of JPEG. However, there are exceptions — usually these are cameras that have two separate buffers (for RAW and JPEG).

HDR

Camera support for HDR.

HDR stands for High Dynamic Range. The main application of this technology is shooting scenes with significant differences in illumination, when there are both very bright and very dark areas in the frame. The features of modern digital photography are such that in the normal shooting mode, only a rather narrow range of brightness can be correctly processed; as a result, with a large difference in illumination, the image contains either too dark or overexposed fragments. HDR avoids this phenomenon: in this mode, the camera takes several shots with different exposure settings, and then glues them together in such a way as to reduce the brightness in bright places and increase in dark places. This allows you to shoot, for example, landscapes against the backdrop of a bright sunset sky, the interiors of dimly lit buildings with bright windows, etc. In addition, HDR can also be used as an artistic technique — to give the picture an unusual colour scheme.

Note that this effect can also be achieved using post-processing in a graphics editor; however, using the camera is much more convenient.

Video scene modes

The number and / or types of scene programs for shooting videos provided in the design of the camera.

Scene programs are a set of presets designed for different shooting situations - for example, in sunlight, on a cloudy day, in a darkened room, etc. Also, this list may include other specific modes - for example, creative tools. In any case, the presence of scene programs facilitates the choice of video shooting parameters, which is very useful for novice users.

Manual video focus

The ability to manually focus the camera during video shooting.

This feature is typically found on cameras that support manual focus in photo mode (see "Manual Focus"); however, not all such models are capable of focus manually when shooting video, so this feature is highlighted separately. As in the case of photography, manual focus allows the user to independently choose the object to be focused on, without relying on automation (which quite often does not work the way we would like). This can be useful not only to ensure the overall quality of the material, but also to use original creative techniques.
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