Zeiss ZX1 vs. Sony Alpha NEX-C3
Comparison
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| Zeiss ZX1 | Sony Alpha NEX-C3 | ||||
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Megapixels
37.40
16.20
Max. image resolution
7488 x 4992
4912 x 3264
Sensor
Sensor type
CMOS
CMOS
Sensor size
36 x 24 mm
23.4 x 15.6 mm
Sensor size comparison
Sensor size is generally a good indicator of the quality of the camera.
Sensors can vary greatly in size. As a general rule, the bigger the
sensor, the better the image quality.
Bigger sensors are more effective because they have more surface area to capture light. An important factor when comparing digital cameras is also camera generation. Generally, newer sensors will outperform the older.
Learn more about sensor sizes »
Bigger sensors are more effective because they have more surface area to capture light. An important factor when comparing digital cameras is also camera generation. Generally, newer sensors will outperform the older.
Learn more about sensor sizes »
Actual sensor size
Note: Actual size is set to screen → change »
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| 2.37 | : | 1 |
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| Zeiss ZX1 | Sony Alpha NEX-C3 | |
Surface area:
| 864.00 mm² | vs | 365.04 mm² |
Difference: 498.96 mm² (137%)
ZX1 sensor is approx. 2.37x bigger than Alpha NEX-C3 sensor.
Note: You are comparing sensors of very different generations.
There is a gap of 7 years between Zeiss ZX1 (2018) and Sony Alpha NEX-C3 (2011).
Seven years is a lot of time in terms
of technology, meaning newer sensors are overall much more
efficient than the older ones.
Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next. It tells you how close the pixels are to each other.
The bigger the pixel pitch, the further apart they are and the bigger each pixel is. Bigger pixels tend to have better signal to noise ratio and greater dynamic range.
The bigger the pixel pitch, the further apart they are and the bigger each pixel is. Bigger pixels tend to have better signal to noise ratio and greater dynamic range.
Pixel or photosite area affects how much light per pixel can be gathered.
The larger it is the more light can be collected by a single pixel.
Larger pixels have the potential to collect more photons, resulting in greater dynamic range, while smaller pixels provide higher resolutions (more detail) for a given sensor size.
Larger pixels have the potential to collect more photons, resulting in greater dynamic range, while smaller pixels provide higher resolutions (more detail) for a given sensor size.
Relative pixel sizes:
vs
Pixel area difference: 0.58 µm² (3%)
A pixel on Zeiss ZX1 sensor is approx. 3% bigger than a pixel on Sony Alpha NEX-C3.
Pixel density tells you how many million pixels fit or would fit in one
square cm of the sensor.
Higher pixel density means smaller pixels and lower pixel density means larger pixels.
Higher pixel density means smaller pixels and lower pixel density means larger pixels.
To learn about the accuracy of these numbers,
click here.
Specs
Zeiss ZX1
Sony Alpha NEX-C3
Total megapixels
39.50
16.50
Effective megapixels
37.40
16.20
Optical zoom
Digital zoom
No
ISO sensitivity
Auto, 80-51200
Auto, 100, 200, 400, 800, 1600, 3200, 6400, 12800
RAW
Manual focus
Normal focus range
30 cm
Macro focus range
Focal length (35mm equiv.)
35 mm
Aperture priority
Yes
Yes
Max. aperture
f2
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±3 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
30 sec
30 sec
Max. shutter speed
1/8000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Electronic
None
White balance presets
7
6
Screen size
4.3"
3"
Screen resolution
921,600 dots
920,000 dots
Video capture
Max. video resolution
3840x2160 (30p)
Storage types
512GB internal
SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
USB
USB 3.0 (5 GBit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Li-ion Battery Pack
Lithium-Ion NP-FW50 rechargeable battery
Weight
813 g
225 g
Dimensions
142 x 93 x 94 mm
110 x 60 x 33 mm
Year
2018
2011
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Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
| Diagonal = √ | w² + h² |
Zeiss ZX1 diagonal
w = 36.00 mm
h = 24.00 mm
h = 24.00 mm
| Diagonal = √ | 36.00² + 24.00² | = 43.27 mm |
Sony Alpha NEX-C3 diagonal
w = 23.40 mm
h = 15.60 mm
h = 15.60 mm
| Diagonal = √ | 23.40² + 15.60² | = 28.12 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
ZX1 sensor area
Width = 36.00 mm
Height = 24.00 mm
Surface area = 36.00 × 24.00 = 864.00 mm²
Height = 24.00 mm
Surface area = 36.00 × 24.00 = 864.00 mm²
Alpha NEX-C3 sensor area
Width = 23.40 mm
Height = 15.60 mm
Surface area = 23.40 × 15.60 = 365.04 mm²
Height = 15.60 mm
Surface area = 23.40 × 15.60 = 365.04 mm²
Pixel pitch
Pixel pitch is the distance from the center of one pixel to the center of the
next measured in micrometers (µm). It can be calculated with the following formula:
| Pixel pitch = | sensor width in mm | × 1000 |
| sensor resolution width in pixels |
ZX1 pixel pitch
Sensor width = 36.00 mm
Sensor resolution width = 7490 pixels
Sensor resolution width = 7490 pixels
| Pixel pitch = | 36.00 | × 1000 | = 4.81 µm |
| 7490 |
Alpha NEX-C3 pixel pitch
Sensor width = 23.40 mm
Sensor resolution width = 4929 pixels
Sensor resolution width = 4929 pixels
| Pixel pitch = | 23.40 | × 1000 | = 4.75 µm |
| 4929 |
Pixel area
The area of one pixel can be calculated by simply squaring the pixel pitch:
You could also divide sensor surface area with effective megapixels:
Pixel area = pixel pitch²
You could also divide sensor surface area with effective megapixels:
| Pixel area = | sensor surface area in mm² |
| effective megapixels |
ZX1 pixel area
Pixel pitch = 4.81 µm
Pixel area = 4.81² = 23.14 µm²
Pixel area = 4.81² = 23.14 µm²
Alpha NEX-C3 pixel area
Pixel pitch = 4.75 µm
Pixel area = 4.75² = 22.56 µm²
Pixel area = 4.75² = 22.56 µm²
Pixel density
Pixel density can be calculated with the following formula:
One could also use this formula:
| Pixel density = ( | sensor resolution width in pixels | )² / 1000000 |
| sensor width in cm |
One could also use this formula:
| Pixel density = | effective megapixels × 1000000 | / 10000 |
| sensor surface area in mm² |
ZX1 pixel density
Sensor resolution width = 7490 pixels
Sensor width = 3.6 cm
Pixel density = (7490 / 3.6)² / 1000000 = 4.33 MP/cm²
Sensor width = 3.6 cm
Pixel density = (7490 / 3.6)² / 1000000 = 4.33 MP/cm²
Alpha NEX-C3 pixel density
Sensor resolution width = 4929 pixels
Sensor width = 2.34 cm
Pixel density = (4929 / 2.34)² / 1000000 = 4.44 MP/cm²
Sensor width = 2.34 cm
Pixel density = (4929 / 2.34)² / 1000000 = 4.44 MP/cm²
Sensor resolution
Sensor resolution is calculated from sensor size and effective megapixels. It's slightly higher
than maximum (not interpolated) image resolution which is usually stated on camera specifications.
Sensor resolution is used in pixel pitch, pixel area, and pixel density formula.
For sake of simplicity, we're going to calculate it in 3 stages.
1. First we need to find the ratio between horizontal and vertical length by dividing the former with the latter (aspect ratio). It's usually 1.33 (4:3) or 1.5 (3:2), but not always.
2. With the ratio (r) known we can calculate the X from the formula below, where X is a vertical number of pixels:
3. To get sensor resolution we then multiply X with the corresponding ratio:
Resolution horizontal: X × r
Resolution vertical: X
1. First we need to find the ratio between horizontal and vertical length by dividing the former with the latter (aspect ratio). It's usually 1.33 (4:3) or 1.5 (3:2), but not always.
2. With the ratio (r) known we can calculate the X from the formula below, where X is a vertical number of pixels:
| (X × r) × X = effective megapixels × 1000000 → |
|
Resolution horizontal: X × r
Resolution vertical: X
ZX1 sensor resolution
Sensor width = 36.00 mm
Sensor height = 24.00 mm
Effective megapixels = 37.40
Resolution horizontal: X × r = 4993 × 1.5 = 7490
Resolution vertical: X = 4993
Sensor resolution = 7490 x 4993
Sensor height = 24.00 mm
Effective megapixels = 37.40
| r = 36.00/24.00 = 1.5 |
|
Resolution vertical: X = 4993
Sensor resolution = 7490 x 4993
Alpha NEX-C3 sensor resolution
Sensor width = 23.40 mm
Sensor height = 15.60 mm
Effective megapixels = 16.20
Resolution horizontal: X × r = 3286 × 1.5 = 4929
Resolution vertical: X = 3286
Sensor resolution = 4929 x 3286
Sensor height = 15.60 mm
Effective megapixels = 16.20
| r = 23.40/15.60 = 1.5 |
|
Resolution vertical: X = 3286
Sensor resolution = 4929 x 3286
Crop factor
Crop factor or focal length multiplier is calculated by dividing the diagonal
of 35 mm film (43.27 mm) with the diagonal of the sensor.
| Crop factor = | 43.27 mm |
| sensor diagonal in mm |
ZX1 crop factor
Sensor diagonal in mm = 43.27 mm
| Crop factor = | 43.27 | = 1 |
| 43.27 |
Alpha NEX-C3 crop factor
Sensor diagonal in mm = 28.12 mm
| Crop factor = | 43.27 | = 1.54 |
| 28.12 |
35 mm equivalent aperture
Equivalent aperture (in 135 film terms) is calculated by multiplying lens aperture
with crop factor (a.k.a. focal length multiplier).
ZX1 equivalent aperture
Crop factor = 1
Aperture = f2
35-mm equivalent aperture = (f2) × 1 = f2
Aperture = f2
35-mm equivalent aperture = (f2) × 1 = f2
Alpha NEX-C3 equivalent aperture
Aperture is a lens characteristic, so it's calculated only for
fixed lens cameras. If you want to know the equivalent aperture for
Sony Alpha NEX-C3, take the aperture of the lens
you're using and multiply it with crop factor.
Crop factor for Sony Alpha NEX-C3 is 1.54
Crop factor for Sony Alpha NEX-C3 is 1.54
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My screen size is
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.