Drawer thinking by numbers can quickly mislead the EOS 7D (1,650 euros). Because you could assume that the new is a full-format SLR above the EOS 5D Mark II. In fact, the EOS 7D is Canon’s new leader in the APS-C department. It toppt the EOS 50D and appears as direct competition of the Nikon D300s. Compared to this, the EOS has a bit more nominal resolution to offer: 18 megapixels compared to 12.
Magnesium case with splash protection
The housing of the EOS 7D is made up of magnesium and is particularly effective against dust and splash water. In its dimensions, the camera recalls the 5D Mark II, but is additionally equipped with a pop-up flash unit that can illuminate focal lengths up to 15 mm (24 mm equivalent) and can also be controlled manually. In addition, the 7D is the first EOS to have a built-in Speedlite transmitter to control multiple Speedlite system flashes wirelessly.
Full HD video with flexible image refresh rates
The SLR viewfinder offers 100 percent image coverage and an effective magnification of 0.63x, comparable to the Nikon D300s. Canon is a component of the viewfinder system, a translucent LCD, with which, for example, Show grid lines in the viewfinder.
New exposure system with dual-layer sensor
The 3-inch monitor shines with a high resolution of 306,700 RGB pixels and 160 degrees viewing angle (horizontal / vertical). In addition, it has been optimized with a view to the readability at high ambient light. Canon has, according to its own statement, the gap between the LCD protective cover and liquid crystal surface eliminated, which should reduce reflections and improve the readability. In addition, there is an ambient light sensor that regulates the display's brightness, seven levels are possible.
High image quality, but average texture loss
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In Live View mode, the camera allows the user to choose between Phase and Contrast AF, the latter with switchable face detection. In the live view, a number of information is displayed, a live histogram and the electronic dual-axis electronic level (Dual Axis). Exposure simulation is possible but can also be switched off. Manual focusing is supported by a magnifying glass (5-10 times).
From the live view it is only a small step to the video function. Thanks to the Movie button, you can switch directly from still image to movie mode. The maximum resolution is Full-HD (1920 x 1080), the refresh rate is variable (30, 25, 24 B / s). As a storage container the camera uses MOV (Quicktime), is encoded according to H.264, an MPEG4 derivative.
The new AF system of the EOS 7D uses 19 cross sensors and can be configured in a variety of ways - from automatic measurement field selection via single-field to zone AF with five measuring ranges. The firing delay including AF time is good with 0.33 / 0.44, but some other Canon models are better on this point. The two Digic-4 image processors can be used at tempo, but with standard images: 7.5 B / s with maximum image resolution are quite good for an 18-megapixel camera.
Also new is the exposure metering system iFCL, which, in addition to brightness and object color, also takes into account the distance to the subject. The corresponding dual-layer sensor with a red- and blue-sensitive layer is also intended to increase the precision of the measurement. The selection of exposure metering methods leaves nothing to be desired: in addition to multi-field and integral measurements (center-weighted), selective measurement (9.4 percent of the image field) and spot measurement (2.3 percent) are ready.
You do not need a built-in HDR function like the Pentax K7 and Sony Alpha 550, but the bracketing mode (exposure series) with a spreading of up to three f-stops provides a good prerequisite for HDR image series, which can be used with a suitable Software later on the computer.
Two worlds meet with the operating concept of the camera. The center of the one is the classic data LCD on the top with assigned buttons, which in combination with one of the two rotary wheels allow the setting of relevant parameters. The other world opens after pressing the Q button below the mode dial for the exposure programs. Then the 3-inch TFT turns into a data monitor with different function fields. After selecting a field with the joystick, you can change values directly there or change the submenu with the thumbwheel.
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According to this pattern, e.g. AF mode, exposure metering method, white balance, or automatic exposure optimization (contrast compensation). For custom settings, the camera provides three memories that can be unbureaucratically selected via the C1 / 2/3 stop positions on the mode dial.
Compared to the pre-production model (tested in ColorFoto 11/2009), the final version of the EOS 7D delivered a slightly weaker resolution (1469/1330 LP / BH at ISO 100/1600). The moderate noise (0.7 / 1.5 VN at ISO 100/1600) corresponds to the high Nikon level.
Even at higher sensitivities (max. 12 800 ISO), still presentable images can be produced. The dynamic range is only 9.5% up to ISO 800 and 9 screens at ISO 1600, the loss of texture with values between 1.1 and 0.8 is only average.
Canon EOS 7D
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