The pinnacle of APS-C! Detailed explanation of canon EOS 7D multi-screen object

As the first APS-C camera named after single digits in Canon's history, EOS 7D has attracted great attention of photographers for its powerful performance and numerous improvement projects (of course, this has a lot to do with its estimated selling price 12000- 13000 yuan), and the former APS-C king? Nikon D300 and D300s were eclipsed in front of them. So, what is the capital of this APS-C format digital SLR, which is known as the strongest in history? Today, we will give you an in-depth analysis through the most comprehensive physical photos of EOS 7D (photos from Japan's DC.watch website).

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"Canon EOS 7D six-sided photo:

According to Canon's own statement, EOS 7D is a DSLR of the same level as EOS 5D in Mark II, and its relationship with EOS 5D Mark II is the same as EOS 1D Mark III and EOS 1D MARK III.

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The fuselage shell of EOS 7D is made of magnesium alloy, which has light weight, high rigidity and electromagnetic shielding effect. Its surface coating is the same as the top EOS- 1D series, and the external parts of magnesium alloy have also become high-precision joint structures.

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EOS 7D has 160? The 920,000-point high-precision LCD with wide viewing angle replaces the gap (air layer) between the protective layer of the original LCD and the LCD panel with optical elastic material, which solves the problem of external light reflection caused by the different refractive indexes of the protective layer and the air layer. In addition, a light sensor is installed next to the LCD, which can automatically adjust the brightness of the LCD according to the surrounding light and shade.

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The shutter button of EOS 7D adopts the same type of button as EOS- 1D series, and the difference between half-pressing shutter button and full-pressing shutter button is obvious. At the same time, as the main internal structure, EOS 7D also has a hard stainless steel skeleton and a mirror box made of high-strength engineering plastics.

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EOS 7D has excellent waterproof, drip-proof and dust-proof characteristics, because it adopts sealing parts around the battery compartment, memory card slot cover and all operation buttons.

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EOS 7D inherits the basic structure of EOS 5D Mark II, and the durability test of shutter unit has exceeded1.5000 times. The shutter unit adopts non-contact magnetic levitation, which removes the physical contact surface and can well suppress the action failure and precision reduction caused by dust and oil pollution.

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At the same time, EOS 7D also adopts a newly developed mirror braking mechanism, which can brake the bouncing primary mirror and secondary mirror instantly, making the action of high-speed continuous shooting more stable, and can also suppress the impact sound of the mirror assembly.

"Comprehensively analyze the details of Canon EOS 7D: sensor, shutter and dual Digic 4.

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EOS 7D adopts a CMOS image sensor with 18 effective pixels and APS-C specifications newly developed by Canon. The sensor not only uses the seamless microlens technology, but also uses a new technology that can shorten the distance from the microlens to the photodiode, thus obtaining higher light concentration and higher signal-to-noise ratio (the conventional sensitivity is ISO 100-6400, and the highest sensitivity can be extended to ISO 12800).

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At the same time, EOS 7D adopts a newly developed non-contact rotating electromagnetic focal plane full-speed electronically controlled mechanical shutter. Its basic structure inherits the shutter unit which has been successfully applied in EOS 5D Mark II, and adopts the same material as EOS- 1D series, reaching the shutter life of about 15000 times. In addition, the shutter unit also has a unique structure without physical contact surface, which has the advantages of less misoperation and precision decline caused by dust, oil adhesion or wear. At the same time, EOS 7D also has a mirror braking mechanism, which can ensure the auto-focusing action of artificial intelligence servo and the image stability in the viewfinder at high-speed continuous shooting, and the suspension motor can realize silent shooting.

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EOS 7D adopts two Digic 4 image processors, which can realize high-speed image processing up to about 8 frames per second continuous shooting. At the same time, 14-bit (16384 color) analog-to-digital conversion is carried out on the captured image (two newly developed high-speed 4-channel analog-to-digital conversion front-end modules are used to convert analog signals into digital signals), even if the camera carries out high-speed processing, the number of bits of analog-to-digital conversion will not be reduced.

"Canon EOS 7D comprehensive analysis of details: fuselage processing.

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) There are independent LiveView and video shooting start buttons.

EOS 7D adds a LiveView and a special start button for video shooting. When the speed control button is pressed in the state of real-time display shooting/short film shooting, automatic brightness optimization and image quality/short film recording size can be set. In the fast mode of autofocus, you can set the position of autofocus point and the selection mode of autofocus area.

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) like EOS 1D, the M-Fn button is provided, and the function of this button can be customized.

Viewfinder 3D electronic level? Multi-function buttons with various functions are arranged beside the main dial, and you can set the functions you want to use at any time. In addition, EOS 7D also adds a single press of RAW+JPEG button, which can quickly make choices according to different scenes.

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) switch to the bottom of the mode dial, there are three custom modes on the mode dial.

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) Q button is added to switch between various screen parameters, and RAW/JPEG switch button is also added.

The buttons related to the operation are mainly concentrated on the left side of the LCD. These buttons have a deeper stroke and a larger size, and are easy to operate even with gloves on.

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) The large dial at the back is made of aluminum alloy and feels first-class.

The back of the machine pays attention to the sense of operation and hand-holding of the speed control dial, and the overall design adopts a shape that can reduce the burden on the hand when lifting the camera with one hand.

"Canon EOS 7D details comprehensive analysis: flash, high-definition shooting, input and output.

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The shape above EOS 7D consists of a smooth and continuous surface, and the handle is completely designed according to ergonomic principles. Pay special attention to the force exerted by fingers when holding the handle, and make great efforts in details, such as changing the thickness of some decorative skins on the surface of the fuselage.

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) provides Mic interface and HDMI high-definition output interface to realize powerful video shooting function.

EOS 7D support 1920? 1080/30/25/24 full HD video shooting (also supports 1280? 720 and 640? Video shooting at 480/60/50 frame rate), short film recording mode can use external microphone (sampling frequency: 48KHz), and the machine is also equipped with short film editing function.

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Using CF memory card as storage medium, we can see that the door of the memory card is waterproof.

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EOS 7D uses the same battery as EOS 5D Mark II.

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The built-in flash of EOS 7D can correspond to the lens angle of 15mm (equivalent to the lens angle of 24mm in the 35mm specification), and the flash index is 12(ISO 100? M). It also has a built-in flash signal emitting function, which can control the flash of an external flash through wireless signals.

"Canon EOS 7D detail comprehensive analysis: focusing system.

EOS 7D is equipped with 19 autofocus point, all of which adopt cross sensors. The so-called cross sensor means that the sensors that detect vertical lines and horizontal lines respectively are arranged in a cross shape. This is a system that rarely loses focus because of the shape and texture of the object. Because these focus points all adopt sensors corresponding to the F5.6 beam, they can be unaffected by the aperture size of the lens, and the focusing performance of all e F lenses can be fully exerted.

Besides, EOS 7D? Area 63 double-layer photometric sensor? It can quickly cope with the brightness and color changes of the subject caused by scene changes, and fully consider the linkage problem with 19 autofocus point in the development. IFCL intelligent integrated metering system adopts a new sensor, which can not only detect the brightness of the object, but also calculate the color of the object and the type of light source. At the same time, the focusing information obtained from 19 autofocus points will also be considered, so as to obtain appropriate metering in various scenes.

"Five autofocus point selection modes of EOS 7D:

In order to effectively use this autofocus function, EOS 7D provides users with five autofocus point selection modes. In addition to manually selecting the mode? Single point autofocus? In addition, is there a smaller focus range than single-point autofocus? Fixed-point autofocus and when the subject is separated from the selected autofocus point, can the focus point of the selected focus point automatically perform auxiliary focusing? Auto focus point expansion? And other rich autofocus area selection modes.

Single point autofocus

Fixed-point autofocus

Automatic focus expansion

Area autofocus

19 point autofocus

Besides,? Area autofocus? 19 focus points can be divided into five areas. When focusing, all focus points in the selected autofocus area will be used to detect the subject, so as to capture the subject accurately while giving priority to composition. At the same time? 19 autofocus? You can also use the central eight-way double cross and all 19-point cross autofocus sensors to capture the subject, which improves the corresponding ability to irregular moving subjects.

"Canon EOS 7D detailed analysis: viewfinder, custom function, electronic level.

EOS 7D adopts an optical viewfinder with the field-of-view ratio of 100%, and achieves a viewfinder magnification of 1 times (-1m- 1, and a 50mm lens focuses infinitely). At the same time, its viewfinder is also equipped with a brand-new back-transmissive LCD panel, which constitutes? Intelligent information display optical viewfinder? . In addition to displaying 19 autofocus point, you can also display grid lines, spotlight rings, three-dimensional electronic level and other contents as required.

EOS 7D body can customize the adjustment interface of function buttons, so it is undoubtedly convenient to adjust such powerful personality options through a unified interface.

Is EOS 7D the first EOS digital SLR camera equipped with a camera that can detect horizontal and forward and backward tilt? Three-dimensional electronic level? Camera. In the camera, two acceleration sensors are arranged in the direction perpendicular to the optical axis, which are used to detect the horizontal tilt and the forward and backward tilt respectively, and the minimum can be 1? The tilt in each direction is detected as a unit.

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