HP Photosmart C618 vs. Sony Mavica FD-73
Comparison
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| HP Photosmart C618 | Sony Mavica FD-73 | ||||
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Megapixels
2.11
0.30
Max. image resolution
1600 x 1200
640 x 480
Sensor
Sensor type
CCD
CCD
Sensor size
1/2.7" (~ 5.33 x 4 mm)
1/2" (~ 6.4 x 4.8 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 | : | 1.44 |
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| HP Photosmart C618 | Sony Mavica FD-73 | |
Surface area:
| 21.32 mm² | vs | 30.72 mm² |
Difference: 9.4 mm² (44%)
Mavica FD-73 sensor is approx. 1.44x bigger than C618 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: 92.51 µm² (915%)
A pixel on Sony Mavica FD-73 sensor is approx. 915% bigger than a pixel on HP C618.
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 C618
Sony Mavica FD-73
Total megapixels
0.30
Effective megapixels
0.30
Optical zoom
3.2x
10x
Digital zoom
Yes
No
ISO sensitivity
100, 400
100
RAW
Manual focus
Normal focus range
50 cm
1 cm
Macro focus range
10 cm
1 cm
Focal length (35mm equiv.)
34 - 108 mm
40 - 400 mm
Aperture priority
Yes
No
Max. aperture
f2.4
f1.8 - f2.9
Metering
Centre weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/2 EV steps)
±1.5 EV (in 1/2 EV steps)
Shutter priority
Yes
No
Min. shutter speed
4 sec
1/60 sec
Max. shutter speed
1/1000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
None
White balance presets
6
3
Screen size
2"
2.5"
Screen resolution
127,000 dots
84,000 dots
Video capture
Max. video resolution
Storage types
CompactFlash type I, CompactFlash type II
Disk 3.5" (2x speed)
USB
USB 1.0
USB 1.0
HDMI
Wireless
GPS
Battery
AA (4) batteries (NiMH recommended)
InfoLithium (NP-F550)
Weight
390 g
500 g
Dimensions
128 x 72 x 57 mm
138 x 103 x 62 mm
Year
2000
1999
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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 C618 diagonal
The diagonal of C618 sensor is not 1/2.7 or 0.37" (9.4 mm) as you might expect, but approximately two thirds of
that value - 6.66 mm. If you want to know why, see
sensor sizes.
w = 5.33 mm
h = 4.00 mm
w = 5.33 mm
h = 4.00 mm
| Diagonal = √ | 5.33² + 4.00² | = 6.66 mm |
Sony Mavica FD-73 diagonal
The diagonal of Mavica FD-73 sensor is not 1/2 or 0.5" (12.7 mm) as you might expect, but approximately two thirds of
that value - 8 mm. If you want to know why, see
sensor sizes.
w = 6.40 mm
h = 4.80 mm
w = 6.40 mm
h = 4.80 mm
| Diagonal = √ | 6.40² + 4.80² | = 8.00 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
C618 sensor area
Width = 5.33 mm
Height = 4.00 mm
Surface area = 5.33 × 4.00 = 21.32 mm²
Height = 4.00 mm
Surface area = 5.33 × 4.00 = 21.32 mm²
Mavica FD-73 sensor area
Width = 6.40 mm
Height = 4.80 mm
Surface area = 6.40 × 4.80 = 30.72 mm²
Height = 4.80 mm
Surface area = 6.40 × 4.80 = 30.72 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 |
C618 pixel pitch
Sensor width = 5.33 mm
Sensor resolution width = 1676 pixels
Sensor resolution width = 1676 pixels
| Pixel pitch = | 5.33 | × 1000 | = 3.18 µm |
| 1676 |
Mavica FD-73 pixel pitch
Sensor width = 6.40 mm
Sensor resolution width = 632 pixels
Sensor resolution width = 632 pixels
| Pixel pitch = | 6.40 | × 1000 | = 10.13 µm |
| 632 |
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 |
C618 pixel area
Pixel pitch = 3.18 µm
Pixel area = 3.18² = 10.11 µm²
Pixel area = 3.18² = 10.11 µm²
Mavica FD-73 pixel area
Pixel pitch = 10.13 µm
Pixel area = 10.13² = 102.62 µm²
Pixel area = 10.13² = 102.62 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 |
C618 pixel density
Sensor resolution width = 1676 pixels
Sensor width = 0.533 cm
Pixel density = (1676 / 0.533)² / 1000000 = 9.89 MP/cm²
Sensor width = 0.533 cm
Pixel density = (1676 / 0.533)² / 1000000 = 9.89 MP/cm²
Mavica FD-73 pixel density
Sensor resolution width = 632 pixels
Sensor width = 0.64 cm
Pixel density = (632 / 0.64)² / 1000000 = 0.98 MP/cm²
Sensor width = 0.64 cm
Pixel density = (632 / 0.64)² / 1000000 = 0.98 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
C618 sensor resolution
Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 2.11
Resolution horizontal: X × r = 1260 × 1.33 = 1676
Resolution vertical: X = 1260
Sensor resolution = 1676 x 1260
Sensor height = 4.00 mm
Effective megapixels = 2.11
| r = 5.33/4.00 = 1.33 |
|
Resolution vertical: X = 1260
Sensor resolution = 1676 x 1260
Mavica FD-73 sensor resolution
Sensor width = 6.40 mm
Sensor height = 4.80 mm
Effective megapixels = 0.30
Resolution horizontal: X × r = 475 × 1.33 = 632
Resolution vertical: X = 475
Sensor resolution = 632 x 475
Sensor height = 4.80 mm
Effective megapixels = 0.30
| r = 6.40/4.80 = 1.33 |
|
Resolution vertical: X = 475
Sensor resolution = 632 x 475
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 |
C618 crop factor
Sensor diagonal in mm = 6.66 mm
| Crop factor = | 43.27 | = 6.5 |
| 6.66 |
Mavica FD-73 crop factor
Sensor diagonal in mm = 8.00 mm
| Crop factor = | 43.27 | = 5.41 |
| 8.00 |
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).
C618 equivalent aperture
Crop factor = 6.5
Aperture = f2.4
35-mm equivalent aperture = (f2.4) × 6.5 = f15.6
Aperture = f2.4
35-mm equivalent aperture = (f2.4) × 6.5 = f15.6
Mavica FD-73 equivalent aperture
Crop factor = 5.41
Aperture = f1.8 - f2.9
35-mm equivalent aperture = (f1.8 - f2.9) × 5.41 = f9.7 - f15.7
Aperture = f1.8 - f2.9
35-mm equivalent aperture = (f1.8 - f2.9) × 5.41 = f9.7 - f15.7
Enter your screen size (diagonal)
My screen size is
inches
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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.