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Comparison Blackmagic Pocket Cinema Camera 4K vs Blackmagic Studio Camera 4K

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Blackmagic Pocket Cinema Camera 4K
Blackmagic Studio Camera 4K
Blackmagic Pocket Cinema Camera 4KBlackmagic Studio Camera 4K
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Featuresprofessional
professional /broadcasting/
Media typeflash (memory card)flash (memory card)
Sensor
Sensor typeCMOSCMOS
Sensor size4/3" (Four Thirds)
2/3" /12.48 мм x 7.02 мм/
Effective megapixels2.076.13
Camera lens
Interchangeable lens
Bayonet (mount)Micro Four Thirds (4:3)Micro Four Thirds (4:3)
Image stabilizationoptical
Manual focus
Video shooting
Video resolution4096x2160 px3840x2160 px
Frame frequency
60 fps /120 кадр/с при FHD/
60 fps
Video recording speed135 Mbps, 81 Mbps, 51 Mbps, 34 Mbps
Sound recording48 kHz, 24 bit
Screen
Screen size5 "10.1 "
Screen resolution2073 K pixels
Features
Features
built-in speaker
 
Memory and sockets
Memory card supportCFast card, SD card
Memory card slots2
Connectors
USB /Type C/
HDMI
 
microphone input
XLR microphone input
headphone jack
USB
 
SDI /entrance and exit/
microphone input
XLR microphone input
headphone jack
Battery
Battery typeLP-E6
Battery capacity1800 mAh
Battery life1 h4 h
General
Dimensions (WxHxD)178x97x86 mm255.25x194.68x113.57 mm
Weight680 g2018 g
Color
Added to E-Catalogaugust 2019march 2015

Sensor size

The physical size of the camcorder sensor. It is usually measured diagonally and is indicated in fractions of an inch — for example, 1/3 "or 1/2.33" (the second option is larger, respectively). In addition, sensors of a “photographic” format can be installed in video cameras, in which case the corresponding designation is used — for example, APS-C.

The larger the sensor, the higher the image quality it can provide (all else being equal). This is due to the fact that on larger sensors, each individual pixel is larger, more light falls on it, which increases sensitivity and reduces noise; this is especially important for shooting in low light. For amateur purposes, small sensors are quite enough, but in professional cameras (see "Features") this parameter is at least 1/3". The exception, however, are models with several sensors (see "Number of sensors") in them each individual sensor is quite small, and high quality is ensured by image processing features.

Effective megapixels

The number of light sensitive pixels directly involved in the construction of the image. These are the dots on which the “image” projected by the lens onto the matrix falls. In addition to them, there are also service pixels that are not illuminated during camera operation — they provide auxiliary information necessary for processing the resulting image. Also, when calculating effective megapixels, the reserve area required for electronic stabilization is usually not taken into account (see "Image Stabilization").

The value of the number of effective pixels for different modes of operation of the camcorder will also be different. For example, when recording video, many cameras use multiple pixels to build a single dot on the image; this is due to the fact that the sensor resolutions significantly exceed those required for video shooting (for example, the Full HD standard technically corresponds to only 2.07 megapixels). As a result, the image quality depends more on the sensor size (see above) than on the resolution. And among sensors of the same size, high resolution allows user to get better colour rendering and higher clarity (however, not always — a lot also depends on the peculiarities of image processing). If we are talking about photography, then more megapixels means a higher resolution of the resulting image, but the quality of such a picture can be relatively low due to the increased noise level and low sensitivity of each individual pixel.

Image stabilization

An image stabilization method provided in the design of a video camera. The stabilization function itself is designed to compensate for small camera shakes so that they are not noticeable in the image. This is especially true when shooting handheld, and in fact most modern models are designed specifically for such usage. According to the method of work, there are such options:

Optical. A special mechanism with a system of gyroscopes and movable lenses, installed directly in the lens, is responsible for the operation of such stabilization systems. It introduces a correction for all tremors, vibrations, etc., and the “picture” falls on the already stabilized sensor. Optical systems are considered the most advanced and efficient, because. their work allows you to use the entire area of the sensor, fully exploit its capabilities and provide good image quality. Among the shortcomings, it is worth noting the increase in the cost and weight of the cameras, as well as a slight decrease in the reliability of the optics. At the same time, these moments are most often not critical, and stabilizers of this type can be used even in simple and inexpensive models.

— Electronic. Electronic stabilization is carried out due to the fact that not the entire area of the sensor, but only some of it, is involved in the formation of an image for a frame. Simply put, the camera electronics "takes into account" a certain area of the sensor a...nd transfers the image from it into the frame; and at small displacements, this "area of attention" is also displaced, due to which the visible image remains motionless. The advantages of electronic systems are simplicity of design, lightness, compactness and high reliability; they can be used with even the simplest lenses installed in pocket cameras (see “Features”). Their main disadvantage is the need to reserve a part of the sensor, which reduces the size and resolution of the actually involved area and adversely affects the image quality.

— Optical / electronic. In such systems, both the methods described above are used — both the mechanism in the lens and the reserve on the sensor. This provides extremely high vibration compensation efficiency — the image remains stable even in such conditions in which any single method would be useless. On the other hand, the disadvantages of both options also remain relevant, and the cost of cameras with this feature is quite high.

Manual focus

Manual focus mode in the standard lens of the video camera (or, if the lens is not included, the ability to work with optics that have this mode). This allows the operator to control the sharpness in the frame himself, without relying on automation.

The point of this feature is that even the most advanced autofocus systems do not always work as expected. This is especially critical in professional shooting: many artistic techniques related to depth of field can only be implemented manually. On the other hand, this mode of operation is more difficult than shooting with autofocus, it requires certain skills and constant control. Therefore, manual focus is quite rare in amateur models (see "Features"), but is almost mandatory for professional ones.

Note that some of these lenses do not have autofocus at all.

Video resolution

The maximum video resolution that the camera can capture. Resolution is the size of an image in points (pixels); usually it is written in two numbers, which correspond to the number of pixels horizontally and vertically.

The more pixels in the image — the clearer it is, the better you can see small details on it, however, the size of the video files increases accordingly. In addition, it is worth considering that in order to fully view the footage, you will need a screen of the appropriate resolution — otherwise all the advantages of the image will be negated. And this parameter also significantly affects the price of the device.

The smallest maximum resolution found in modern camcorders is about 720x480; the quality of such a "picture" can be compared with analogue television broadcasting. Resolution 1280x720 corresponds to the HD standard, it can be found among inexpensive TVs and monitors, and 1920x1080 (Full HD) is the most popular option among mid-range and top-class video devices. The maximum resolution used in modern consumer electronics (including camcorders) is 4K, 4096x2160; it is typical for the most advanced devices.

The vast majority of cameras are able to work not only with the maximum resolution, but also with several “more modest” options — for those cases where small file volumes are more important than high resolution.

Video recording speed

The data transfer speed provided by the camera when recording video. This parameter is also called bitrate (i.e., the number of bits per unit of time). For any file format used for recording, the general rule is that the higher the bitrate, the better the image quality (especially for formats that use lossy compression). On the other hand, high speed have appropriate requirements for the capabilities of the memory cards used — for more details, see "Memory card support"; and it increases the size of the file accordingly. Therefore, many modern camcorders are able to work with different bitrates; this allows you to choose the best option depending on what is more important for you at the moment — maximum quality or the ability to work with a slow card.

At the same time, we note that in terms of quality, this parameter is important mainly for professional video shooting. If you need a camera for amateur purposes, there is no need to look for the maximum bitrate: after all, such models (and memory cards for them) cost accordingly.

Sound recording

The format in which the camera records sound during video recording. Typically, this section indicates the number of channels and the sound system used, the file format, or the characteristics of the audio stream, such as "2ch Dolby Digital (AC-3)" or "PCM, 16bit 48kHz, 2ch". In order not to go into technical details, we note that two channels are the minimum required for surround sound (stereo), and advanced models can work with multi-channel sound like 5.1. As for other specifications, you should pay attention to them when choosing a professional device (see "Features") — in amateur and especially pocket cameras, the sound format does not play a special role. Specific features of various formats are described in special sources.

Screen size

Diagonal size of the camcorder's own display in inches. The larger the display, the larger the image on it will be, the easier it will be to work with the screen both during the shooting process and when viewing the footage. On the other hand, a large screen has an effect on the size of the camera itself, you don’t need large sizes to work with a frame, and it’s more convenient to view the footage on a full-sized device like a TV. With this in mind, most modern models are equipped with displays with a diagonal of about 2 – 3.5"; larger screens are extremely rare — even in professional cameras (see "Features"), for which compactness is not a priority.

Features

Viewfinder. The presence of a viewfinder in the design of the camera — a special optical device in the form of a tube with an eyepiece and a small screen under it. Actually, the role of this device is similar to a conventional display: pointing the frame, controlling the shooting parameters, viewing the footage. The main difference is that in this case the screen is maximally covered and its visibility is almost independent of the ambient light conditions; this is very important in bright sunlight and in other similar situations where outdoor displays "become blind". In addition, the viewfinder can also be useful when stealth is important — it does not reflect on the operator's face and does not unmask it; and such systems consume less energy. On the other hand, the eyepiece during operation must be brought close to the eye; and if the external display allows you to hold the camera, for example, at arm's length above your head, then the viewfinder does not provide such freedom for manoeuvre. Also shooting through such a device can be quite tedious, especially for unaccustomed users; and viewfinders are poorly compatible with glasses. As a result, this element is found mainly in professional models of cameras (see "Features").

Built-in flash. The presence of a flash in the camera — a light source for taking photos. The most popular use of a flash is to provide illumination in low light condit...ions; in addition, it can be used for shooting opposite to a bright light and some other special tasks. In cameras equipped with a backlight (see below), the same lamp can also act as a flash.

— Backlight lamp. The presence of its own lamp to illuminate insufficiently lit scenes in the design of the camera. This lamp differs from the flash described above as it is designed to work during video shooting and operates in constant light mode, and not in impulses. Backlight allows you to use the camera autonomously, without external lighting devices, which can not always be installed. However, do not forget that its operation also consumes battery power.

— Hot shoe. Hot shoe is a specialized mount for installing additional accessories. Most often it is used for external flashes, but not only: external viewfinders, microphones, GPS modules and much more can be attached to the hot shoe. There are several generally accepted standards for this mount, in addition, each manufacturer uses its own set of additional contacts to control advanced features of external equipment; this must be taken into account when selecting such equipment. However, if you intend to use external accessories, it makes sense to choose a camera with a hot shoe. Most of these models are professional (see "Features"), but there are exceptions.

— Built-in speaker. The presence of its own speaker in the camera design. This feature allows you to view footage with sound without the need for additional equipment such as headphones. Note that the quality of the built-in speakers is usually low, and they are not designed for more serious tasks (for example, playing music); and when viewing, they allow not so much to evaluate the quality of the audio, but to determine whether the sound was recorded.

— Built-in projector. The presence of its own projector in the camera design. This feature greatly simplifies the viewing of footage: it allows to provide a fairly large "picture" (with a diagonal of several tens of centimeters) using the camera itself, without the use of TVs or other external screens. However for viewing you will need a suitable surface — at least a plain light wall; but the power of the projectors themselves is low, and in bright light the image may not be visible at all. However, if the video needs to be shown to several viewers at once, this option is definitely more convenient than viewing it on the camera's own screen. In addition, you can watch any video uploaded to memory of a suitable format on the projector — in other words, use the camera as a player.

Wi-Fi module. The camera has its own Wi-Fi wireless module. This standard is used to build computer networks, and more recently – also for direct communication between various devices: laptops, smartphones, tablets, etc. Specific options for using Wi-Fi may vary depending on the camera model, and include options such as direct copying of content to an external device or even to the Internet (such as YouTube), remote control of the camera, use as a webcam (see below). below), firmware update, etc. And all this is carried out without the use of wires, the communication range can reach 100 m, and the walls are not an obstacle (although they reduce the "range").

— NFC. The presence of a chip for NFC standard wireless communication in the camera. The range of such communication is up to 10 cm, and in cameras it plays an auxiliary role, facilitating the wireless connection of the camera and an external device (smartphone, tablet, etc.) that also has an NFC. Instead of digging through the settings, just bring both devices close to each other and confirm the Wi-Fi connection (see above). Accordingly, this chip is installed only in cameras that have more wireless capabilities.

— GPS module. The camera has a built-in GPS satellite navigation module. By itself, such a module during operation only captures the current location based on data from satellites, but how this data is used depends on the specific camera model. Most often, devices with GPS are able to at least add geotags to the footage — information about the geographical coordinates of the shooting location; but besides this, more extensive features can be provided — for example, search among the materials at the location of the shooting or even full-fledged navigation on the map.

— Detachable microphone. The presence of a mount in the design of the camera for installing an external removable microphone; the microphone itself can be included in the package or purchased separately. This function is typical for professional models and 3D cameras similar in functionality (see "Features") — it allows you to record sound of higher quality and with less noise than when using the built-in microphone.

— Webcam feature. The ability to connect the device to a computer and use it as a webcam — for video calls, broadcasting video directly to the Web, direct recording to a computer, etc. The advantage of camcorders over traditional webcams is the higher resolution and image quality. At the same time, this advantage has not been very noticeable lately, but larger size make camcorders less convenient; Therefore, this function is not widely used.

— Direct copy to HDD. The ability to connect an external hard drive directly to the camera and copy footage to it without using a computer. This feature is especially useful in situations where you need to make a copy (for example, to free up camera memory) and the computer is not nearby.

— Direct printing. The ability to connect the camera to a printer (to print captured photos) directly without using a computer. Software tools in such models can have quite extensive print management options: image selection, printing multiple copies, size and number of prints per sheet, print quality, error messages, etc. Typically, direct printing uses PictBridge technology using a USB connection. It must be supported not only by the camera, but also by the printer; at the same time, the connection does not require additional configuration, driver installation, etc.
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