HP Photosmart M527 vs. Fujifilm FinePix A920
Comparison
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| HP Photosmart M527 | Fujifilm FinePix A920 | ||||
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Megapixels
6.00
9.10
Max. image resolution
2800 x 2128
3488 x 2616
Sensor
Sensor type
CCD
CCD
Sensor size
1/2.5" (~ 5.75 x 4.32 mm)
1/1.6" (~ 8 x 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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| 1 | : | 1.93 |
| (ratio) | ||
| HP Photosmart M527 | Fujifilm FinePix A920 | |
Surface area:
| 24.84 mm² | vs | 48.00 mm² |
Difference: 23.16 mm² (93%)
A920 sensor is approx. 1.93x bigger than M527 sensor.
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: 1.13 µm² (27%)
A pixel on Fujifilm A920 sensor is approx. 27% bigger than a pixel on HP M527.
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
HP M527
Fujifilm A920
Total megapixels
9.10
Effective megapixels
9.10
Optical zoom
3x
4x
Digital zoom
Yes
Yes
ISO sensitivity
Auto
Auto
RAW
Manual focus
Normal focus range
50 cm
60 cm
Macro focus range
12 cm
10 cm
Focal length (35mm equiv.)
38 - 114 mm
39 - 156 mm
Aperture priority
No
No
Max. aperture
f2.8 - f4.8
f2.9 - f6.3
Metering
Centre weighted
TTL 256-zones metering
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
2 sec
4 sec
Max. shutter speed
1/1000 sec
1/1200 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
None
White balance presets
5
7
Screen size
2"
2.7"
Screen resolution
115,200 dots
115,000 dots
Video capture
Max. video resolution
Storage types
Secure Digital
xD Picture card
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA (2) batteries (NiMH recommended)
AA (4) batteries (NiMH recommended)
Weight
153 g
176 g
Dimensions
95 x 32 x 62 mm
98 x 62 x 32 mm
Year
2006
2007
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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 |
HP M527 diagonal
The diagonal of M527 sensor is not 1/2.5 or 0.4" (10.2 mm) as you might expect, but approximately two thirds of
that value - 7.19 mm. If you want to know why, see
sensor sizes.
w = 5.75 mm
h = 4.32 mm
w = 5.75 mm
h = 4.32 mm
| Diagonal = √ | 5.75² + 4.32² | = 7.19 mm |
Fujifilm A920 diagonal
The diagonal of A920 sensor is not 1/1.6 or 0.63" (15.9 mm) as you might expect, but approximately two thirds of
that value - 10 mm. If you want to know why, see
sensor sizes.
w = 8.00 mm
h = 6.00 mm
w = 8.00 mm
h = 6.00 mm
| Diagonal = √ | 8.00² + 6.00² | = 10.00 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
M527 sensor area
Width = 5.75 mm
Height = 4.32 mm
Surface area = 5.75 × 4.32 = 24.84 mm²
Height = 4.32 mm
Surface area = 5.75 × 4.32 = 24.84 mm²
A920 sensor area
Width = 8.00 mm
Height = 6.00 mm
Surface area = 8.00 × 6.00 = 48.00 mm²
Height = 6.00 mm
Surface area = 8.00 × 6.00 = 48.00 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 |
M527 pixel pitch
Sensor width = 5.75 mm
Sensor resolution width = 2825 pixels
Sensor resolution width = 2825 pixels
| Pixel pitch = | 5.75 | × 1000 | = 2.04 µm |
| 2825 |
A920 pixel pitch
Sensor width = 8.00 mm
Sensor resolution width = 3479 pixels
Sensor resolution width = 3479 pixels
| Pixel pitch = | 8.00 | × 1000 | = 2.3 µm |
| 3479 |
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 |
M527 pixel area
Pixel pitch = 2.04 µm
Pixel area = 2.04² = 4.16 µm²
Pixel area = 2.04² = 4.16 µm²
A920 pixel area
Pixel pitch = 2.3 µm
Pixel area = 2.3² = 5.29 µm²
Pixel area = 2.3² = 5.29 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 |
M527 pixel density
Sensor resolution width = 2825 pixels
Sensor width = 0.575 cm
Pixel density = (2825 / 0.575)² / 1000000 = 24.14 MP/cm²
Sensor width = 0.575 cm
Pixel density = (2825 / 0.575)² / 1000000 = 24.14 MP/cm²
A920 pixel density
Sensor resolution width = 3479 pixels
Sensor width = 0.8 cm
Pixel density = (3479 / 0.8)² / 1000000 = 18.91 MP/cm²
Sensor width = 0.8 cm
Pixel density = (3479 / 0.8)² / 1000000 = 18.91 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
M527 sensor resolution
Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 6.00
Resolution horizontal: X × r = 2124 × 1.33 = 2825
Resolution vertical: X = 2124
Sensor resolution = 2825 x 2124
Sensor height = 4.32 mm
Effective megapixels = 6.00
| r = 5.75/4.32 = 1.33 |
|
Resolution vertical: X = 2124
Sensor resolution = 2825 x 2124
A920 sensor resolution
Sensor width = 8.00 mm
Sensor height = 6.00 mm
Effective megapixels = 9.10
Resolution horizontal: X × r = 2616 × 1.33 = 3479
Resolution vertical: X = 2616
Sensor resolution = 3479 x 2616
Sensor height = 6.00 mm
Effective megapixels = 9.10
| r = 8.00/6.00 = 1.33 |
|
Resolution vertical: X = 2616
Sensor resolution = 3479 x 2616
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 |
M527 crop factor
Sensor diagonal in mm = 7.19 mm
| Crop factor = | 43.27 | = 6.02 |
| 7.19 |
A920 crop factor
Sensor diagonal in mm = 10.00 mm
| Crop factor = | 43.27 | = 4.33 |
| 10.00 |
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).
M527 equivalent aperture
Crop factor = 6.02
Aperture = f2.8 - f4.8
35-mm equivalent aperture = (f2.8 - f4.8) × 6.02 = f16.9 - f28.9
Aperture = f2.8 - f4.8
35-mm equivalent aperture = (f2.8 - f4.8) × 6.02 = f16.9 - f28.9
A920 equivalent aperture
Crop factor = 4.33
Aperture = f2.9 - f6.3
35-mm equivalent aperture = (f2.9 - f6.3) × 4.33 = f12.6 - f27.3
Aperture = f2.9 - f6.3
35-mm equivalent aperture = (f2.9 - f6.3) × 4.33 = f12.6 - f27.3
Enter your screen size (diagonal)
My screen size is
inches
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.