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Comparison Sony HXR-NX100 vs Sony HDR-CX900E

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Sony HXR-NX100
Sony HDR-CX900E
Sony HXR-NX100Sony HDR-CX900E
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Featuresprofessionalamateur
Media typeflash (memory card)flash (memory card)
Sensor
Sensor type
CMOS /Exmor R/
CMOS
Sensor size1"1"
Number of megapixels20.9
Effective megapixels14.214.2
Camera lens
Focal length (35mm equivalent)29 – 426.9 mm29 — 426 mm
Aperturef/2.8 – f/4.5f/2.8— f/4.5
Optical zoom12 х12 х
Digital zoom160 х
Image stabilizationopticaloptical
Filter diameter62 mm62 mm
Manual focus
Video shooting
Video resolution1920x1080 px1920x1080 px
Frame frequency60 fps50 fps
Video recording speed
50 Mbps, 28 Mbps, 24 Mbps, 17 Mbps /9 Mbps, 5 Mbps/
50 Mbps, 28 Mbps, 24 Mbps, 17 Mbps /9 Mbps, 5 Mbps, 3 Mbps/
Minimum illuminance1.7 lux3 lux
Night shooting?
Shutter speed1/6 – 1/10000 с1/8 — 1/10000 с
White balance
auto, capturing, outdoor, indoor /white balance temperature/
Auto exposure8
Scene programmes
auto, night, sunrise and sunset, fireworks /landscape, portrait, beach, snow/
Sound recording
LPCM 16-bit, 48kHz, 2 channels /Dolby Digital 2ch, 16-bit, 48 kHz/
Dolby Digital 5.1
Photo
Number of megapixels20
Max. photo size5968x3352 px
Picture while shooting
Screen
Screen size3.5 "3.5 "
Screen resolution1560 K pixels921 K pixels
Touch screen
Features
Features
viewfinder /0.24"/
hot shoe
built-in speaker
 
 
detachable microphone
 
viewfinder
hot shoe
built-in speaker
Wi-Fi module
NFC
 
direct copy to HDD
Memory and sockets
Memory card supportMemory Stick Duo, SD, SDHC, SDXCMS, MS Pro, MS Pro HG, MS Pro HG Duo HX, SD, SDHC, SDXC
Memory card slots2
Connectors
USB
HDMI
AV output /via BNC/
 
XLR microphone input /2 pcs/
headphone jack
USB /built-in/
HDMI
AV output
microphone input
 
headphone jack
Battery
USB charging
Battery typeNP-F770
NP-FV50 /NP-FV70, NP-FV100/
Battery capacity4400 mAh1200 mAh
Battery life7.4 h
General
Remote control
Dimensions (WxHxD)
171.3x187.8x371.3 mm /with lens hood and large eyecup/
81x83.5x196.5 mm
Weight
2100 g /with lens hood, eyecup and battery/
790 g /without battery/
Color
Added to E-Catalognovember 2015may 2014

Features

Amateur. As the name implies, these cameras are designed for relatively simple tasks and normal everyday use — filming family chronicles, solemn events, small documentaries, video presentations, etc. Note that amateur devices can have a fairly wide range of settings and provide high image quality. However, even the most advanced options cannot replace professional equipment; and the general principle of their design is to simplify and facilitate operations. One of the characteristic features of this type of camera is its compact size (although larger than that of the pocket cameras described below), which make it easy to hold the device in one hand. In addition, models with a viewfinder are very rare among them (see "Features"), and models with an interchangeable lens (see below) are not found at all.

Professional. Cameras designed for professional shooting are outwardly distinguished by their large size — they are noticeably larger than amateur ones, and are often designed to be carried on the shoulder, and not held in hands (although there are compact models comparable to amateur ones). This is primarily due to the abundance of features: models of this type have many additional settings, each of them can be controlled manually, as well as an extended set of interfaces, more capacious batteries, mounts for external microphones, etc. It is also worth noting the p...resence of the devices with interchangeable lenses (see below) in this class . Professional cameras are excellent for TV journalism and filming, but they are poorly suited for personal use. And the point here is not only in large size and high cost: handling such a device requires certain skills, and an abundance of settings can create many problems for inexperienced users.

3D camcorder. This category includes all models that have the 3D feature (see below). The specific appearance and functionality of such cameras may vary: some are closer to the amateur models described above, others are closer to professional ones. The same applies to the implementation of 3D: some models are initially equipped with a stereo lens, in others this feature is performed with an adapter mounted on traditional "two-dimensional" optics.

Pocket. This type can be described as a specific kind of amateur camera, designed for maximum compactness (including, in fact, the possibility of carrying in your pocket). Some pocket models are similar in appearance to the "shrunken to the limit" versions of full-size cameras, others resemble mobile phones with a specific placement of the lens — on the back cover. Anyway, such cameras are extremely convenient to carry and they allow you to always have a recording device at hand, the capabilities of which are significantly superior to those of phones. On the other hand, for the sake of portability, you usually have to sacrifice many specifications — the capabilities of optics, the size of the sensor, etc. — because of this the capabilities of pocket cameras are significantly lower than even amateur ones, not to mention professional ones.

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).

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.

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.

Frame frequency

The highest frame rate provided by the camera when shooting video. The minimum frequency for normal viewing is the classic 24 fps used in cinema. At the same time, most modern video cameras are capable of providing up to 50 – 60 fps, and even higher frequencies can be used for the slow motion effect.

In fact, this indicator is important primarily when shooting dynamic scenes. The higher the frame rate, the smoother the fast motion will look in the frame, the less jerky it will be and the more pleasant the overall impression of the image will be. The reverse side of this is an increase in the size of recorded files (all other things being equal). Therefore, the frame rate can be made adjustable so that the operator can choose the best option for a particular situation.

Minimum illuminance

The lowest illumination of the scene being shot, at which the camera is able to provide an image of normal quality. Note that in devices with a night view function (see below), this parameter can be specified in different ways. In some models, minimal illuminance is implied, in which the camera can shoot without backlight and at the same time maintain colour reproduction (as in normal daytime shooting); in others — an "absolute" minimum of light, below which it is impossible to use even the night mode. This point should be clarified according to the official documents of the manufacturer.

Anyway, the lower this indicator, the less light the camera needs to work and the better it handles with shooting at dusk or even at night. Thanks to the use of special technologies, some models are able to work even in complete darkness, with an illumination of 0 lux; this is due to the fact that modern sensors are able to perceive infrared radiation invisible to the eye. However, more often than not, shooting still requires a certain amount of light — at least tenths of a lux. For comparison: an illumination of 0.1 lux approximately corresponds to a lunar night with a “half” phase of the moon, and 1 lux is comparable to a bright full moon in southern latitudes.

Night shooting

The camera has night mode. In this case, both the meaning of this parameter and its specific implementation can significantly differ from model to model. So, in some cameras, this term means a special mode for deep twilight, which allows you to get a relatively reliable colour reproduction (“as in the daytime”) without the use of additional illumination. Others use an infrared filter, due to which shooting can be done even in complete darkness — but the image will turn out to be black and white. And in the most advanced models, this filter is complemented by its own IR illumination system, which further expands the capabilities of the camera.

Thus, the details of the operation of this mode in a particular camera should be clarified according to the official documents of the manufacturer. However, anyway, if you often have to shoot in low light conditions or at night, it may make sense to pay attention to such cameras. Also note that the presence of a standart backlight lamp (see "Features") is not considered a night shooting feature, although it can also significantly "make life easier" in the dark.

Shutter speed

The range of shutter speeds in which the camera is capable of operating during the shooting process.

Initially, shutter speed is the time during which light affects the photosensitive material (film) when shooting a single frame. For digital sensors, this is the period of time during which an image is read from the sensor to build a separate frame. When shooting video, this interval cannot be more than 1/n, where n is the frame rate (see above), but it can be less — for example, shooting at a frame rate of 30 fps and shutter speed of each frame 1/60 s. There are no such restrictions for the photo mode.

Long exposures are good because they allow the sensor to take in more light — accordingly, the “picture” is brighter, which is especially important in low light. At the same time, they increase the likelihood of getting a blurry image — due to the rapid movement of objects in the frame, the operator's hand shaking and other random camera movements that even the stabilization system is unable to compensate for. This effect can be useful for artistic motion blur, especially when shooting video, but in photo mode it is most often undesirable. Fast shutter speeds, on the other hand, allow you to get clear shots, but with less light, and in the case of video, even with the effect of sharp, jerky movements.

Accordingly, different exposure time options will be optimal for each situation, and the wider their range, the more opportunities the came...ra has to adjust to specific conditions.
Sony HXR-NX100 often compared
Sony HDR-CX900E often compared