Comparison Canon EOS 350D kit vs Canon EOS 400D kit

The number of pixels (megapixels) of the matrix directly involved in the construction of the image, in fact — the number of points from which the captured image is built. Some manufacturers, in addition to this parameter, also indicate the total number of MPs, taking into account the service areas of the matrix. However, it is the effective number of MPs that is considered the main indicator — it is this that directly affects the maximum resolution of the resulting image (see “Maximum image size”).

A megapixel is 1 million pixels. Numerous megapixels ensures high resolution of the captured photos, but is not a guarantee of high-quality images — much also depends on the size of the sensor, its light sensitivity (see the relevant glossary items), as well as hardware and software image processing tools used in the camera. Note that for small matrices, high resolution can sometimes be more of an evil than a blessing — such sensors are very prone to the appearance of noise in the image.

The maximum size of photos taken by the camera in normal (non-panoramic) mode. In fact, this paragraph indicates the highest resolution of photography — in pixels vertically and horizontally, for example, 3000x4000. This indicator directly depends on the resolution of the matrix: the number of dots in the image cannot exceed the effective number of megapixels (see above). For example, for the same 3000x4000, the matrix must have an effective resolution of at least 3000*4000 = 12 million dots, that is, 12 MP.

Theoretically, the larger the size of the photo, the more detailed the image, the more small details can be conveyed on it. At the same time, the overall image quality (including the visibility of fine details) depends not only on resolution, but also on a number of other technical and software factors; see "Effective MP number" for more details.

— USB-C. A universal USB interface using a Type C connector. USB ports (of all types) are mainly used for connecting the camera to a computer to transfer captured materials, manage settings, update firmware, etc. Specifically, the Type C connector is comparable in size to the earlier miniUSB and microUSB, but it has a reversible design that allows the plug to be inserted either way. Moreover, USB-C often operates at a USB 10Gbps standard, allowing for connection speeds up to 10 Gbps—a useful feature when transferring large amounts of content.

— HDMI. An all-encompassing digital interface that allows video (including high resolution) and audio (up to multichannel) to be transmitted via a single cable. Having such a port allows the use of the camera as a player: it can be directly connected to a TV, monitor, projector, etc., to view captured materials on a big screen. These transmission capabilities may include not only video playback but also displaying captured photos as a slideshow. HDMI inputs are found in most modern video devices, and connection is usually not problematic.
Currently, several versions of the HDMI interface are available on the market:

• v 1.4. The oldest of the current versions, released in 2009. Nevertheless, it supports 3D video, can work with resolutions up to 4096x2160 at 24 fps, and in Full HD resolution, the frame rate can reach up to 120 fps. Besides the original v.1.4, there are also improved modific...ations — v.1.4a and v.1.4b; they are similar in basic capabilities, with improvements primarily focused on 3D content.
• v 2.0. A significant HDMI update, introduced in 2013. In this version, the maximum frame rate at 4K increased to 60 fps, and new features include support for ultra-wide format 21:9. In the v.2.0a update, HDR support was added to the interface's capabilities; in v.2.0b, this feature was enhanced and expanded.
• v 2.1. Despite the similar naming to v.2.0, this version, released in 2017, was a very significant update. It added support for 8K and even 10K at speeds of up to 120 fps, as well as further expanded capabilities for working with HDR. A dedicated cable—HDMI Ultra High Speed—was released for this version, and all v.2.1 capabilities are only available using cables of this standard, although basic functions can be used with simpler cables.

— Headphone Output. An audio output that allows headphones to be connected to the camera. It is typically represented by a classic 3.5mm mini-jack. Such an output provides the ability to monitor sound in real time during video recording. This is especially important when shooting interviews, video blogs, and other similar projects.

— Microphone Input. A specialized input for connecting an external microphone to the camera. External microphones significantly outperform built-in ones in sound quality. Firstly, they are less sensitive to the camera's "own" sounds—from buttons, control wheels, focus motors, etc. (and if the microphone uses a long cable and is not mounted on the body, these sounds will not be audible at all). Secondly, external microphones themselves have more advanced characteristics. On the other hand, their use is mainly justified for professional video recording; therefore, the presence of a microphone input usually corresponds to advanced video shooting capabilities.

The ratio, expressed as a percentage, between the portion of the image that the photographer sees in the viewfinder (see above) and the image that is actually captured by the camera when shooting. Most often, it is specified as a percentage of the width and height of the frame, rather than the area.

Modern digital cameras often have viewfinders with a frame coverage of less than 100% - thus, the frame includes not only the visible scene, but also some space beyond its edges. This creates some inconveniences - in particular, it may be necessary to crop the photo to ensure a pre-conceived composition. Therefore, a viewfinder with 100% coverage is still considered the ideal option. Some time ago, such systems were found mainly in premium cameras, but now, thanks to cheaper prices and technological developments, they can be installed even in relatively inexpensive amateur compacts (see "Product type").

The range of shutter speeds that the camera is capable of shooting.

Exposure is the time between opening and closing the shutter (see below), in other words, the period of time captured in the photo. For different purposes, methods and conditions of shooting, different shutter speeds will be optimal. Small values (in modern cameras they can reach thousandths of a second) are important when shooting fast-moving objects and for shooting at long distances — in the first case, they minimize the effect of image blur from the movement of the object, in the second — the effect of camera shake in hands. However, for shooting at low shutter speeds, a good matrix light sensitivity or high-aperture optics are required (see above). Long shutter speeds (measured in seconds) are used for shooting in low light conditions — such as city streets at night or the starry sky — and also allow you to create the effect of movement in the frame. Accordingly, the greater the shutter speed range, the wider the camera's ability to choose the option that is optimal for certain conditions.

Continuous shooting speed provided by the camera at the maximum frame resolution. At lower resolutions, the speed may be higher, but this value is considered the key characteristic.

In continuous shooting, the photographer presses the button, and the camera takes several shots in a row, usually at intervals of a fraction of a second. Such shooting is convenient, for example, for capturing fast-moving objects: it allows you to choose the most successful from a series of frames, or to show the dynamics of movement using the entire series. And the higher the speed, the more effective the shooting, the more frames the camera can capture in a period of time. On the other hand, speed requires appropriate hardware and can significantly affect the cost.

Size of the camera's native display in diagonal inches. The larger the screen, the more convenient it is, usually, to use. In particular, a larger and more detailed image can be displayed on a large screen; in addition, size is of great importance for the ease of operation of the touch display (see touch screen). On the other hand, the dimensions of the display have a corresponding effect on the dimensions of the device. Therefore, screens of more than 3 "in modern cameras are quite rare.

The size of the camera's native display in pixels. The higher the resolution of the display, the more smooth and detailed the image it reproduces, the less noticeable the graininess and individual pixels, and the more the display as a whole is pleasing to the eye. On the other hand, the high-resolution display affects the cost of the camera itself (albeit quite slightly).

Unlike the rest of modern electronics, it is customary for cameras to indicate this parameter not as the horizontal and vertical size, but as the total number of pixels on the screen. To date, screens of 230K pixels correspond to the entry level, 460K pixels to the average, more than 900K pixels to the advanced.

The minimum/maximum distance from the subject to the lens at which the flash can be used effectively (usually limited to a few metres). Since lenses with a variable focal length have different aperture ratios depending on the set focal length (see Aperture), for cameras with such optics, two ranges of flash application are indicated — for the minimum and maximum focal lengths, for example "0.3 — 3.5 (W), 0.45 — 2(T)." The letters W and T in such markings indicate the minimum and maximum focal lengths, respectively.