Nikon Coolpix P7700 vs. Samsung EX2F
Comparison
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| Nikon Coolpix P7700 | Samsung EX2F | ||||
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Megapixels
12.20
12.40
Max. image resolution
4000 x 3000
Sensor
Sensor type
CMOS
CMOS
Sensor size
1/1.7" (~ 7.53 x 5.64 mm)
1/1.7" (~ 7.53 x 5.64 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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| Nikon Coolpix P7700 | Samsung EX2F | |
Surface area:
| 42.47 mm² | vs | 42.47 mm² |
Difference: 0 mm² (0%)
P7700 and EX2F sensors are the same size.
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: 0.04 µm² (1%)
A pixel on Nikon P7700 sensor is approx. 1% bigger than a pixel on Samsung EX2F.
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
Nikon P7700
Samsung EX2F
Total megapixels
12.80
Effective megapixels
12.20
12.40
Optical zoom
7.1x
3.3x
Digital zoom
Yes
Yes
ISO sensitivity
80, 100, 200, 400, 800, 1600, (3200 and Hi 1=6400)
Auto, 80, 100, 200, 400, 800, 1600, 3200
RAW
Manual focus
Normal focus range
50 cm
Macro focus range
2 cm
Focal length (35mm equiv.)
28 - 200 mm
24 - 80 mm
Aperture priority
Yes
Yes
Max. aperture
f2.0 - f4.0
f1.4 - f2.7
Metering
Multi, Center-weighted, Spot
Exposure compensation
±3 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
60 sec
Max. shutter speed
1/4000 sec
Built-in flash
External flash
Viewfinder
None
Electronic (optional)
White balance presets
5
Screen size
3"
3"
Screen resolution
921,000 dots
Video capture
Max. video resolution
Storage types
SD/SDHC/SDXC
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Nikon EN-EL14 Lithium-Ion
Lithium-Ion SLB-10A battery
Weight
392 g
294 g
Dimensions
118.5 x 72.5 x 50.4 mm
112 x 62 x 29 mm
Year
2012
2012
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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 |
Nikon P7700 diagonal
The diagonal of P7700 sensor is not 1/1.7 or 0.59" (14.9 mm) as you might expect, but approximately two thirds of
that value - 9.41 mm. If you want to know why, see
sensor sizes.
w = 7.53 mm
h = 5.64 mm
w = 7.53 mm
h = 5.64 mm
| Diagonal = √ | 7.53² + 5.64² | = 9.41 mm |
Samsung EX2F diagonal
The diagonal of EX2F sensor is not 1/1.7 or 0.59" (14.9 mm) as you might expect, but approximately two thirds of
that value - 9.41 mm. If you want to know why, see
sensor sizes.
w = 7.53 mm
h = 5.64 mm
w = 7.53 mm
h = 5.64 mm
| Diagonal = √ | 7.53² + 5.64² | = 9.41 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
P7700 sensor area
Width = 7.53 mm
Height = 5.64 mm
Surface area = 7.53 × 5.64 = 42.47 mm²
Height = 5.64 mm
Surface area = 7.53 × 5.64 = 42.47 mm²
EX2F sensor area
Width = 7.53 mm
Height = 5.64 mm
Surface area = 7.53 × 5.64 = 42.47 mm²
Height = 5.64 mm
Surface area = 7.53 × 5.64 = 42.47 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 |
P7700 pixel pitch
Sensor width = 7.53 mm
Sensor resolution width = 4043 pixels
Sensor resolution width = 4043 pixels
| Pixel pitch = | 7.53 | × 1000 | = 1.86 µm |
| 4043 |
EX2F pixel pitch
Sensor width = 7.53 mm
Sensor resolution width = 4076 pixels
Sensor resolution width = 4076 pixels
| Pixel pitch = | 7.53 | × 1000 | = 1.85 µm |
| 4076 |
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 |
P7700 pixel area
Pixel pitch = 1.86 µm
Pixel area = 1.86² = 3.46 µm²
Pixel area = 1.86² = 3.46 µm²
EX2F pixel area
Pixel pitch = 1.85 µm
Pixel area = 1.85² = 3.42 µm²
Pixel area = 1.85² = 3.42 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 |
P7700 pixel density
Sensor resolution width = 4043 pixels
Sensor width = 0.753 cm
Pixel density = (4043 / 0.753)² / 1000000 = 28.83 MP/cm²
Sensor width = 0.753 cm
Pixel density = (4043 / 0.753)² / 1000000 = 28.83 MP/cm²
EX2F pixel density
Sensor resolution width = 4076 pixels
Sensor width = 0.753 cm
Pixel density = (4076 / 0.753)² / 1000000 = 29.3 MP/cm²
Sensor width = 0.753 cm
Pixel density = (4076 / 0.753)² / 1000000 = 29.3 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
P7700 sensor resolution
Sensor width = 7.53 mm
Sensor height = 5.64 mm
Effective megapixels = 12.20
Resolution horizontal: X × r = 3017 × 1.34 = 4043
Resolution vertical: X = 3017
Sensor resolution = 4043 x 3017
Sensor height = 5.64 mm
Effective megapixels = 12.20
| r = 7.53/5.64 = 1.34 |
|
Resolution vertical: X = 3017
Sensor resolution = 4043 x 3017
EX2F sensor resolution
Sensor width = 7.53 mm
Sensor height = 5.64 mm
Effective megapixels = 12.40
Resolution horizontal: X × r = 3042 × 1.34 = 4076
Resolution vertical: X = 3042
Sensor resolution = 4076 x 3042
Sensor height = 5.64 mm
Effective megapixels = 12.40
| r = 7.53/5.64 = 1.34 |
|
Resolution vertical: X = 3042
Sensor resolution = 4076 x 3042
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 |
P7700 crop factor
Sensor diagonal in mm = 9.41 mm
| Crop factor = | 43.27 | = 4.6 |
| 9.41 |
EX2F crop factor
Sensor diagonal in mm = 9.41 mm
| Crop factor = | 43.27 | = 4.6 |
| 9.41 |
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).
P7700 equivalent aperture
Crop factor = 4.6
Aperture = f2.0 - f4.0
35-mm equivalent aperture = (f2.0 - f4.0) × 4.6 = f9.2 - f18.4
Aperture = f2.0 - f4.0
35-mm equivalent aperture = (f2.0 - f4.0) × 4.6 = f9.2 - f18.4
EX2F equivalent aperture
Crop factor = 4.6
Aperture = f1.4 - f2.7
35-mm equivalent aperture = (f1.4 - f2.7) × 4.6 = f6.4 - f12.4
Aperture = f1.4 - f2.7
35-mm equivalent aperture = (f1.4 - f2.7) × 4.6 = f6.4 - f12.4
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