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Comparison Sony PXW-Z150 vs Sony NEX-FS700

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Sony PXW-Z150
Sony NEX-FS700
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Featuresprofessionalprofessional
Media typeflash (memory card)flash (memory card)
Sensor
Sensor typeCMOSCMOS
Sensor size1"
APS-C /"Exmor" Super35 CMOS/
Number of megapixels2011.6
Effective megapixels14.28.3
Camera lens
Interchangeable lens
Bayonet (mount)Sony E
Focal length (35mm equivalent)29 – 348 mm30.6 — 380 mm
Aperturef/2.8 – f/4.5f/3.5—f/6.3
Optical zoom12 х11 х
Digital zoom48 х
Image stabilizationopticaloptical
Filter diameter62 mm67 mm
Manual focus
Video shooting
Video resolution3840x2160 px1920x1080 px
Frame frequency120 fps960 fps
Recording formatsXAVC, Long, GOP, MPEG2, AVCHD
Video recording speed
100 Mbps, 60 Mbps, 50 Mbps, 35 Mbps /24 Mbps, 17 Mbps, 9 Mbps, 3 Mbps/
PS 28 Mbps, FX 24 Mbps, FH 17 Mbps /HQ 9 Mbps, LP 5 Mbps/
Minimum illuminance1.7 lux1.2 lux
Shutter speed1/6 – 1/10000 с1/3 — 1/10000 с
White balanceauto, indoor, outdoorauto, outdoor, indoor, one push
Sound recording
48 kHz/24 bit /2 channels/
2-channel Dolby Digital (AC-3) /Linear PCM 48 kHz 16-bit 2 channels/
Photo
Number of megapixels8.4
Max. photo size3840x2160 px
Screen
Screen size3.5 "3.5 "
Screen resolution1550 K pixels921 K pixels
Touch screen
Features
Features
viewfinder /0.39″ OLED, 1.44 Мп/
hot shoe
built-in speaker
Wi-Fi module
NFC
detachable microphone
 
hot shoe
 
 
 
 
Memory and sockets
Built-in memory128 GB
Memory card supportMS, SD, SDHC, SDXCMS PRO Duo, MS PRO-HG Duo, SD, SDHC, SDXC (Class 4 or higher)
Memory card slots2
Connectors
 
USB
HDMI /Type A/
SDI
AV output
XLR microphone input /2/
headphone jack
component
USB
HDMI
SDI /HD-SDI/
AV output
XLR microphone input /2 pcs/
headphone jack
Battery
Battery typeNP-F770NP-F770
Battery capacity4400 mAh4400 mAh
Battery life4.33 h3.3 h
General
Remote control
 /RMT-845/
Dimensions (WxHxD)
171.3x187.8x371.3 mm /with protruding parts/
126.5x101.5x193.5 mm /without microphone and lens hood/
Weight
1895 g /body only/
1680 g /without microphone and lens hood/
Color
Added to E-Catalogdecember 2016april 2013

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.

Number of megapixels

The total number of individual photosensitive points (pixels) provided in the design of the sensor (1 megapixel corresponds to a million pixels). This parameter takes into account both those points on which the light falls, and service points that are not directly involved in the construction of the image. Therefore, in modern video cameras, it is more of a reference than practically significant; the actual image quality depends primarily on the number of effective megapixels (see below).

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.

Interchangeable lens

The ability to change the standard camera lens to another one that differs in specifications (viewing angle, magnification, etc.). This feature is found among professional models (see "Features"). It significantly expands the possibilities of using the camera: for example, for filming sports events from a remote point, you can install a “long-range” telephoto lens, for a mass event — a wide-angle one, etc.

The range of compatible lenses may vary. Initially, camcorders used specialized optics, designed only for this class of devices, but relatively recently, models with “photographic” bayonets (see below) that are compatible with lenses for digital cameras have appeared. In such cases, the lens may not be included in the package at all — it must be purchased separately, as for a DSLR camera in the “body” version.

Bayonet (mount)

Bayonet type — type of a mount for an interchangeable lens (see above) provided in the design of the camcorder. This paragraph specifies only standard mounts used in camera lenses; camcorders that are not compatible with such lenses usually use specialized mounts that have not gained wide popularity.

— Canon EF. Bayonet, originally designed for Canon EOS DSLR cameras; Recently, camcorders have also been produced under this brand. Optics for EF are also made by third-party manufacturers, but the mount itself is used exclusively in Canon technology, because. this standard is not open.

— Micro Four Thirds (4:3). This bayonet is part of a standard of the same name developed by Olympus and Panasonic primarily for mirrorless digital cameras. Used in Panasonic models because Olympus practically does not release "classic" camcorders.

— Sony E. Bayonet, created by Sony for branded devices; unlike all those described above, it was originally intended not only for cameras (mirrorless), but also for camcorders.

— PL-Mount. Mount used in professional video equipment. Its main feature is the ability to mount the lens in 4 different positions — straight, "upside down" and rotated 90° to the right or left. This expands the possibilities of using the camera. In addition, Pl-Mount is characterized by high connection reliability, which is important when working with massive high-end optics.

Focal length (35mm equivalent)

Focal length of a standard video camera lens in terms of a 35 mm full-frame sensor. This parameter is also called the "equivalent focal length" — EFL.

The focal length itself is the distance from the optical centre of the lens (when focus to infinity) to the sensor, at which the sharpest image is obtained on the sensor. It is one of the key characteristics of any lens, because. determines the viewing angles, the degree of approximation and, accordingly, the specifics of the use of optics. At the same time, it is impossible to compare different options in terms of the actual focal length: the laws of physics are such that with different sizes of sensors, the same focal length will give different viewing angles. Therefore, EFL was adopted as a universal characteristic and criterion for comparison. It can be described as the focal length that a 35mm lens with the same viewing angles would have.

The larger the focal length, the narrower the viewing angle will be and the higher the degree of approximation of the visible scene. Optics with EFL up to 18 mm belongs to the class of ultra wide-angle ("fisheye") and is used primarily to create artistic effects. Distances up to 40 mm correspond to "wide angles", 50 mm gives the same degree of approximation as that of the naked eye, the range of 70-100 mm is considered optimal for portrait shooting, and large values allow the use of optics already as a telephoto lens. Knowing these provisions, one can approximately...evaluate the capabilities of the lens and its suitability for certain tasks; there are more detailed recommendations, they are described in special sources.

Also note that modern video cameras are usually equipped with lenses with a variable focal length (zoom), which allows you to change the degree of approximation and viewing angle; see "Optical Zoom" for details.

Aperture

Aperture of a standard video camera lens.

This parameter describes how much the lens attenuates the light output. Usually it is written as a ratio between the diameter of the active hole and the focal length of the lens, while the first value is taken as one and denoted as f — for example, f/1.8 or f/5.6. Moreover, the smaller the number in such a record, the higher the aperture ratio: for example, in our example, the first option is “lighter” than the second. Also note that most lenses with a variable focal length (see above) also have a variable aperture — in such cases it is indicated by the range from maximum to minimum (from a smaller number to a larger one).

A high aperture ratio is important primarily when shooting in low light conditions: it allows you to capture an image without “lifting up” the sensor sensitivity and without creating additional artifacts in the form of noise, and in the photo shooting mode, you can also work with shorter shutter speeds (which is useful for dynamic scenes). In addition, the higher the aperture, the lower the depth of field and the easier it is to get a blurry background. Note that for simple everyday tasks this parameter does not play a decisive role, but in professional shooting it can be very significant.

Optical zoom

The degree (multiplicity) of image magnification provided by the operation of the lens system in the lens itself, without additional digital processing (see "Digital zoom"). Optical zoom involves changing the focal length (see above): the longer the focal length, the smaller the viewing angle and the larger the objects visible in the frame. And the zoom multiplicity corresponds to the ratio between the maximum and minimum value of this distance. For example, in a 24 – 120 mm system, this parameter will be 120/24 = 5x. However, it is not always appropriate to choose a high zoom camcorder.

The advantage of optical zoom over digital zoom is, first of all, high image quality: regardless of the degree of zoom, the camera uses the entire effective area of the sensor. At the same time, zoom indicators can reach several tens of times, which is more than enough for camcorders of any class. Therefore, this format is the main one today; it is not used only in some models of pocket cameras (see "Features"), where it is not possible to install a large lens with a zoom lens.

For modern models, the value of this parameter at the level of 10 – 12x is considered standard.

Digital zoom

The degree (multiplicity) of zoom provided by the camcorders due to software methods, without changing the focal length of the optics (see "Optical zoom"). The key principle of such an zoom is that part of the image from the sensor is "stretched" to the entire frame. This somewhat worsens the “picture” — after all, not all effective pixels take part in its formation; and the higher the zoom, the worse the quality becomes. On the other hand, this method does not depend on the specifications of the lens and works even with the simplest lenses that do not have zoom lenses, and it is much easier to achieve high magnification than with the optical method.

In modern camcorders, there are two options for using digital zoom. So, among pocket devices (see "Features"), it may be the only available option — not all of them are equipped with zoom lenses. And in full-size models, digital zoom usually complements optical zoom and turns on after the lens reaches the limit of its capabilities.

Note that when shooting 3D (see above), this feature may not be available, and in professional models it is often not used at all.
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