GE E1480W vs. Canon PowerShot SX720 HS
Comparison
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Megapixels
14.20
20.30
Max. image resolution
4320 x 3240
5184 x 3888
Sensor
Sensor type
CCD
CMOS
Sensor size
1/2.3" (~ 6.16 x 4.62 mm)
1/2.3" (~ 6.16 x 4.62 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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| GE E1480W | Canon PowerShot SX720 HS | |
Surface area:
| 28.46 mm² | vs | 28.46 mm² |
Difference: 0 mm² (0%)
E1480W and SX720 HS sensors are the same size.
Note: You are comparing sensors of very different generations.
There is a gap of 6 years between GE E1480W (2010) and Canon SX720 HS (2016).
Six 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: 0.6 µm² (42%)
A pixel on GE E1480W sensor is approx. 42% bigger than a pixel on Canon SX720 HS.
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
GE E1480W
Canon SX720 HS
Total megapixels
21.10
Effective megapixels
20.30
Optical zoom
Yes
40x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 80, 100, 200, 400, 800, 1600, 3200
Auto, 100-3200
RAW
Manual focus
Normal focus range
60 cm
5 cm
Macro focus range
5 cm
1 cm
Focal length (35mm equiv.)
28 - 224 mm
24 - 960 mm
Aperture priority
No
Yes
Max. aperture
f3.3 - f5.8
f3.3 - f6.9
Metering
Centre weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
Yes
Min. shutter speed
30 sec
15 sec
Max. shutter speed
1/2000 sec
1/3200 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
6
5
Screen size
3"
3"
Screen resolution
230,400 dots
921,600 dots
Video capture
Max. video resolution
1920x1080 (60p/30p)
Storage types
SDHC, Secure Digital
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Li-Ion
NB-13L lithium-ion battery
Weight
270 g
Dimensions
98.3 x 56.8 x 20.2 mm
109.7 x 63.8 x 35.7 mm
Year
2010
2016
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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 |
GE E1480W diagonal
The diagonal of E1480W sensor is not 1/2.3 or 0.43" (11 mm) as you might expect, but approximately two thirds of
that value - 7.7 mm. If you want to know why, see
sensor sizes.
w = 6.16 mm
h = 4.62 mm
w = 6.16 mm
h = 4.62 mm
| Diagonal = √ | 6.16² + 4.62² | = 7.70 mm |
Canon SX720 HS diagonal
The diagonal of SX720 HS sensor is not 1/2.3 or 0.43" (11 mm) as you might expect, but approximately two thirds of
that value - 7.7 mm. If you want to know why, see
sensor sizes.
w = 6.16 mm
h = 4.62 mm
w = 6.16 mm
h = 4.62 mm
| Diagonal = √ | 6.16² + 4.62² | = 7.70 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
E1480W sensor area
Width = 6.16 mm
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 mm²
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 mm²
SX720 HS sensor area
Width = 6.16 mm
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 mm²
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 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 |
E1480W pixel pitch
Sensor width = 6.16 mm
Sensor resolution width = 4346 pixels
Sensor resolution width = 4346 pixels
| Pixel pitch = | 6.16 | × 1000 | = 1.42 µm |
| 4346 |
SX720 HS pixel pitch
Sensor width = 6.16 mm
Sensor resolution width = 5196 pixels
Sensor resolution width = 5196 pixels
| Pixel pitch = | 6.16 | × 1000 | = 1.19 µm |
| 5196 |
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 |
E1480W pixel area
Pixel pitch = 1.42 µm
Pixel area = 1.42² = 2.02 µm²
Pixel area = 1.42² = 2.02 µm²
SX720 HS pixel area
Pixel pitch = 1.19 µm
Pixel area = 1.19² = 1.42 µm²
Pixel area = 1.19² = 1.42 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 |
E1480W pixel density
Sensor resolution width = 4346 pixels
Sensor width = 0.616 cm
Pixel density = (4346 / 0.616)² / 1000000 = 49.78 MP/cm²
Sensor width = 0.616 cm
Pixel density = (4346 / 0.616)² / 1000000 = 49.78 MP/cm²
SX720 HS pixel density
Sensor resolution width = 5196 pixels
Sensor width = 0.616 cm
Pixel density = (5196 / 0.616)² / 1000000 = 71.15 MP/cm²
Sensor width = 0.616 cm
Pixel density = (5196 / 0.616)² / 1000000 = 71.15 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
E1480W sensor resolution
Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 14.20
Resolution horizontal: X × r = 3268 × 1.33 = 4346
Resolution vertical: X = 3268
Sensor resolution = 4346 x 3268
Sensor height = 4.62 mm
Effective megapixels = 14.20
| r = 6.16/4.62 = 1.33 |
|
Resolution vertical: X = 3268
Sensor resolution = 4346 x 3268
SX720 HS sensor resolution
Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 20.30
Resolution horizontal: X × r = 3907 × 1.33 = 5196
Resolution vertical: X = 3907
Sensor resolution = 5196 x 3907
Sensor height = 4.62 mm
Effective megapixels = 20.30
| r = 6.16/4.62 = 1.33 |
|
Resolution vertical: X = 3907
Sensor resolution = 5196 x 3907
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 |
E1480W crop factor
Sensor diagonal in mm = 7.70 mm
| Crop factor = | 43.27 | = 5.62 |
| 7.70 |
SX720 HS crop factor
Sensor diagonal in mm = 7.70 mm
| Crop factor = | 43.27 | = 5.62 |
| 7.70 |
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).
E1480W equivalent aperture
Crop factor = 5.62
Aperture = f3.3 - f5.8
35-mm equivalent aperture = (f3.3 - f5.8) × 5.62 = f18.5 - f32.6
Aperture = f3.3 - f5.8
35-mm equivalent aperture = (f3.3 - f5.8) × 5.62 = f18.5 - f32.6
SX720 HS equivalent aperture
Crop factor = 5.62
Aperture = f3.3 - f6.9
35-mm equivalent aperture = (f3.3 - f6.9) × 5.62 = f18.5 - f38.8
Aperture = f3.3 - f6.9
35-mm equivalent aperture = (f3.3 - f6.9) × 5.62 = f18.5 - f38.8
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