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What is the pixel pitch of the Sony A58?

The Sony Alpha SLT-A58 provides 19.8 megapixels from an APS-C sensor. This pixel density gives rise to a size of the individual pixel of 4.31µm.

The pixel size or pixel pitch can be calculated by dividing the sensor area by the pixel count and then taking the square root. In particular, the sensor in the Sony A58 measures 23.5mm in width and 15.6mm in height, so that the total imaging area of the sensor amounts to 367 mm2. Moreover, the A58 has 5 456 horizontal pixels and 3 632 vertical pixels, for a total of 19.8 megapixels. Then, the size (height or width) of each individual pixel can be calculated as the square root of the ratio of the sensor area (367 mm2) to the MP count (19 816 192).

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Larger pixels provide advantages with respect to gathering light, particularly in low-light situations. Large pixels notably have a better signal to noise ratio, meaning that they can better differentiate between incoming photons and the noisy signals that the internal processes of the camera create. As a result, big pixels are particularly helpful to the photographer when shooting with high ISO settings.

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Sensor specs and performance

The table below compares the sensor specs of the Sony A58 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.

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Sensor Characteristics
#   Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A58 APS-C 19.8 5456 36321080/60i23.312.575374
2.
 
Canon SL1 APS-C 17.9 5184 34561080/30p21.811.384363
3.
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161
4.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
5.
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181
6.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.0106178
7.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.570179
8.
 
Sony A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
9.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
10.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
11.
 
Sony A3000 APS-C 19.8 5456 36321080/60i23.712.8106878
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Further information on the sensor in the Sony A58 and the camera's operation can be found in the camera manual.

In the United States, the A58 was initially launched in February 2013 at a price of $599.

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Camera to camera comparisons

If you would like to see a side-by-side review with another camera, just make your choice using the following search menu. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications Summary
    Camera Model Sony A58
    Camera Type Digital single lens reflex
    Camera Lens Sony A mount lenses
    Launch Date February 2013
    Launch Price USD 599
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format APS-C Sensor
    Sensor Size 23.5 x 15.6 mm
    Sensor Area 367 mm2
    Sensor Diagonal 28.2 mm
    Crop Factor 1.5x
    Sensor Resolution 19.8 Megapixels
    Image Resolution 5 456 x 3 632 pixels
    Pixel Pitch 4.31 μm
    Pixel Density 5.41 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 1080/60i Video
    ISO Setting 100 - 16 000 ISO
    ISO Boost 100 - 25 600 ISO
    Image Processor BIONZ
    DXO Sensor Quality (score) 74
    DXO Color Depth (bits) 23.3
    DXO Dynamic Range (EV) 12.5
    DXO Low Light (ISO) 753
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.57x
    Viewfinder Resolution 1440k dots
    Top-Level Screen no Top Display
    LCD Framing Live View
    LCD Size 2.7 inch
    LCD Resolution 460k dots
    LCD Attachment Tilting screen
    V-logging Friendliness No front-flip
    Touch Input No touchscreen
    Shooting Specs
    Focus System Phase-detect AF
    Manual Focusing AidFocus Peaking
    Maximum Shutter Speed 1/4000s
    Continuous Shooting 5 shutter flaps/s
    Shutter Life Expectancy100 000 actuations
    Silent Shootingno E-Shutter
    Time Lapse Photographyno Intervalometer
    Image StabilizationIn-body stabilization
    Fill Flash Built-in Flash
    Storage Medium MS or SDXC cards
    Single or Dual Card Slots Single card slot
    UHS card support no
    Connectivity Specs
    External Flash Hotshoe
    USB Connector USB 2.0
    HDMI Port mini HDMI
    Microphone Port External MIC port
    Wifi Support no Wifi
    Body Specs
    Battery Type Sony NP-FM500H power pack
    Battery Life (CIPA)690 shots per charge
    Body Dimensions 129 x 95 x 78 mm
    (5.1 x 3.7 x 3.1 in)
    Camera Weight 492 g (17.4 oz)

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