Olympus C-990 Zoom vs. Sony Cyber-shot DSC-W350
Comparison
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| Olympus C-990 Zoom | Sony Cyber-shot DSC-W350 | ||||
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Megapixels
2.10
14.50
Max. image resolution
1600 x 1200
4320 x 3240
Sensor
Sensor type
CCD
CCD
Sensor size
1/2.7" (~ 5.33 x 4 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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| 1 | : | 1.33 |
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| Olympus C-990 Zoom | Sony Cyber-shot DSC-W350 | |
Surface area:
| 21.32 mm² | vs | 28.46 mm² |
Difference: 7.14 mm² (33%)
W350 sensor is approx. 1.33x bigger than C-990 Zoom sensor.
Note: You are comparing sensors of very different generations.
There is a gap of 10 years between Olympus C-990 Zoom (2000) and Sony W350 (2010).
Ten 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: 8.22 µm² (419%)
A pixel on Olympus C-990 Zoom sensor is approx. 419% bigger than a pixel on Sony W350.
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
Olympus C-990 Zoom
Sony W350
Total megapixels
Effective megapixels
Optical zoom
Yes
4x
Digital zoom
Yes
Yes
ISO sensitivity
100, 200, 400
Auto, 80, 100, 200, 400, 1600, 3200
RAW
Manual focus
Normal focus range
80 cm
4 cm
Macro focus range
20 cm
4 cm
Focal length (35mm equiv.)
35 - 105 mm
26 - 105 mm
Aperture priority
No
No
Max. aperture
f2.8 - f4.4
f2.7 - f5.7
Metering
Centre weighted
Centre weighted, Multi-pattern, Spot
Exposure compensation
±2 EV (in 1/2 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
1/2 sec
2 sec
Max. shutter speed
1/1000 sec
1/1600 sec
Built-in flash
External flash
Viewfinder
Optical
None
White balance presets
5
6
Screen size
1.8"
2.7"
Screen resolution
61,000 dots
230,400 dots
Video capture
Max. video resolution
Storage types
SmartMedia
Memory Stick Duo, Memory Stick Pro Duo, SDHC, Secure Digital
USB
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
2x CR-V3, 4x AA
Lithium-Ion NP-BN1 battery
Weight
380 g
117 g
Dimensions
127 x 67 x 53 mm
91 x 52 x 17 mm
Year
2000
2010
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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 |
Olympus C-990 Zoom diagonal
The diagonal of C-990 Zoom 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 W350 diagonal
The diagonal of W350 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.
C-990 Zoom 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
W350 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 |
C-990 Zoom pixel pitch
Sensor width = 5.33 mm
Sensor resolution width = 1672 pixels
Sensor resolution width = 1672 pixels
| Pixel pitch = | 5.33 | × 1000 | = 3.19 µm |
| 1672 |
W350 pixel pitch
Sensor width = 6.16 mm
Sensor resolution width = 4392 pixels
Sensor resolution width = 4392 pixels
| Pixel pitch = | 6.16 | × 1000 | = 1.4 µm |
| 4392 |
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 |
C-990 Zoom pixel area
Pixel pitch = 3.19 µm
Pixel area = 3.19² = 10.18 µm²
Pixel area = 3.19² = 10.18 µm²
W350 pixel area
Pixel pitch = 1.4 µm
Pixel area = 1.4² = 1.96 µm²
Pixel area = 1.4² = 1.96 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 |
C-990 Zoom pixel density
Sensor resolution width = 1672 pixels
Sensor width = 0.533 cm
Pixel density = (1672 / 0.533)² / 1000000 = 9.84 MP/cm²
Sensor width = 0.533 cm
Pixel density = (1672 / 0.533)² / 1000000 = 9.84 MP/cm²
W350 pixel density
Sensor resolution width = 4392 pixels
Sensor width = 0.616 cm
Pixel density = (4392 / 0.616)² / 1000000 = 50.84 MP/cm²
Sensor width = 0.616 cm
Pixel density = (4392 / 0.616)² / 1000000 = 50.84 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
C-990 Zoom sensor resolution
Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 2.10
Resolution horizontal: X × r = 1257 × 1.33 = 1672
Resolution vertical: X = 1257
Sensor resolution = 1672 x 1257
Sensor height = 4.00 mm
Effective megapixels = 2.10
| r = 5.33/4.00 = 1.33 |
|
Resolution vertical: X = 1257
Sensor resolution = 1672 x 1257
W350 sensor resolution
Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 14.50
Resolution horizontal: X × r = 3302 × 1.33 = 4392
Resolution vertical: X = 3302
Sensor resolution = 4392 x 3302
Sensor height = 4.62 mm
Effective megapixels = 14.50
| r = 6.16/4.62 = 1.33 |
|
Resolution vertical: X = 3302
Sensor resolution = 4392 x 3302
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 |
C-990 Zoom crop factor
Sensor diagonal in mm = 6.66 mm
| Crop factor = | 43.27 | = 6.5 |
| 6.66 |
W350 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).
C-990 Zoom equivalent aperture
Crop factor = 6.5
Aperture = f2.8 - f4.4
35-mm equivalent aperture = (f2.8 - f4.4) × 6.5 = f18.2 - f28.6
Aperture = f2.8 - f4.4
35-mm equivalent aperture = (f2.8 - f4.4) × 6.5 = f18.2 - f28.6
W350 equivalent aperture
Crop factor = 5.62
Aperture = f2.7 - f5.7
35-mm equivalent aperture = (f2.7 - f5.7) × 5.62 = f15.2 - f32
Aperture = f2.7 - f5.7
35-mm equivalent aperture = (f2.7 - f5.7) × 5.62 = f15.2 - f32
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