Olympus mju mini Digital S vs. Panasonic Lumix DMC-FS5

Comparison

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mju mini Digital S image
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Lumix DMC-FS5 image
Olympus mju mini Digital S Panasonic Lumix DMC-FS5
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Megapixels
5.40
10.10
Max. image resolution
2560 x 1920
3648 x 2736

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.5" (~ 5.75 x 4.32 mm)
1/2.33" (~ 6.08 x 4.56 mm)
Sensor resolution
2680 x 2015
3665 x 2756
Diagonal
7.19 mm
7.60 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 »

Actual sensor size

Note: Actual size is set to screen → change »
vs
1 : 1.12
(ratio)
Olympus mju mini Digital S Panasonic Lumix DMC-FS5
Surface area:
24.84 mm² vs 27.72 mm²
Difference: 2.88 mm² (12%)
FS5 sensor is approx. 1.12x bigger than mju mini S sensor.
Note: You are comparing cameras of different generations. There is a 4 year gap between Olympus mju mini S (2004) and Panasonic FS5 (2008). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
2.15 µm
1.66 µm
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.
Difference: 0.49 µm (30%)
Pixel pitch of mju mini S is approx. 30% higher than pixel pitch of FS5.
Pixel area
4.62 µm²
2.76 µm²
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.
Relative pixel sizes:
vs
Pixel area difference: 1.86 µm² (67%)
A pixel on Olympus mju mini S sensor is approx. 67% bigger than a pixel on Panasonic FS5.
Pixel density
21.72 MP/cm²
36.34 MP/cm²
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.
Difference: 14.62 µm (67%)
Panasonic FS5 has approx. 67% higher pixel density than Olympus mju mini S.
To learn about the accuracy of these numbers, click here.



Specs

Olympus mju mini S
Panasonic FS5
Crop factor
6.02
5.69
Total megapixels
10.70
Effective megapixels
10.10
Optical zoom
Yes
4x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 64, 100, 200, 400
Auto, Hi Auto, (1600-6400), 100, 200, 400, 800, 1600
RAW
Manual focus
Normal focus range
50 cm
50 cm
Macro focus range
8 cm
5 cm
Focal length (35mm equiv.)
35 - 70 mm
30 - 120 mm
Aperture priority
No
No
Max. aperture
f3.5 - f4.9
f3.3 - f5.8
Max. aperture (35mm equiv.)
f21.1 - f29.5
f18.8 - f33
Metering
ESP Digital, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
1/2 sec
60 sec
Max. shutter speed
1/1000 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
5
4
Screen size
1.8"
2.5"
Screen resolution
134,000 dots
230,000 dots
Video capture
Max. video resolution
Storage types
xD Picture card
SD/MMC/SDHC card, Internal
USB
USB 1.1
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Li-Ion
Lithium-Ion rechargeable
Weight
115 g
159 g
Dimensions
95 x 55.5 x 27.5 mm
95 x 53 x 23 mm
Year
2004
2008




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Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal = √  w² + h²
where w = sensor width and h = sensor height

Olympus mju mini S diagonal

The diagonal of mju mini S 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
Diagonal = √  5.75² + 4.32²   = 7.19 mm

Panasonic FS5 diagonal

The diagonal of FS5 sensor is not 1/2.33 or 0.43" (10.9 mm) as you might expect, but approximately two thirds of that value - 7.6 mm. If you want to know why, see sensor sizes.

w = 6.08 mm
h = 4.56 mm
Diagonal = √  6.08² + 4.56²   = 7.60 mm


Surface area

Surface area is calculated by multiplying the width and the height of a sensor.

mju mini S sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 mm²

FS5 sensor area

Width = 6.08 mm
Height = 4.56 mm

Surface area = 6.08 × 4.56 = 27.72 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

mju mini S pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2680 pixels
Pixel pitch =   5.75  × 1000  = 2.15 µm
2680

FS5 pixel pitch

Sensor width = 6.08 mm
Sensor resolution width = 3665 pixels
Pixel pitch =   6.08  × 1000  = 1.66 µm
3665


Pixel area

The area of one pixel can be calculated by simply squaring the pixel pitch:
Pixel area = pixel pitch²

You could also divide sensor surface area with effective megapixels:
Pixel area =   sensor surface area in mm²
effective megapixels

mju mini S pixel area

Pixel pitch = 2.15 µm

Pixel area = 2.15² = 4.62 µm²

FS5 pixel area

Pixel pitch = 1.66 µm

Pixel area = 1.66² = 2.76 µm²


Pixel density

Pixel density can be calculated with the following 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

mju mini S pixel density

Sensor resolution width = 2680 pixels
Sensor width = 0.575 cm

Pixel density = (2680 / 0.575)² / 1000000 = 21.72 MP/cm²

FS5 pixel density

Sensor resolution width = 3665 pixels
Sensor width = 0.608 cm

Pixel density = (3665 / 0.608)² / 1000000 = 36.34 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:
(X × r) × X = effective megapixels × 1000000    →   
X = √  effective megapixels × 1000000
r
3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

mju mini S sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 5.40
r = 5.75/4.32 = 1.33
X = √  5.40 × 1000000  = 2015
1.33
Resolution horizontal: X × r = 2015 × 1.33 = 2680
Resolution vertical: X = 2015

Sensor resolution = 2680 x 2015

FS5 sensor resolution

Sensor width = 6.08 mm
Sensor height = 4.56 mm
Effective megapixels = 10.10
r = 6.08/4.56 = 1.33
X = √  10.10 × 1000000  = 2756
1.33
Resolution horizontal: X × r = 2756 × 1.33 = 3665
Resolution vertical: X = 2756

Sensor resolution = 3665 x 2756


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


mju mini S crop factor

Sensor diagonal in mm = 7.19 mm
Crop factor =   43.27  = 6.02
7.19

FS5 crop factor

Sensor diagonal in mm = 7.60 mm
Crop factor =   43.27  = 5.69
7.60

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).

mju mini S equivalent aperture

Crop factor = 6.02
Aperture = f3.5 - f4.9

35-mm equivalent aperture = (f3.5 - f4.9) × 6.02 = f21.1 - f29.5

FS5 equivalent aperture

Crop factor = 5.69
Aperture = f3.3 - f5.8

35-mm equivalent aperture = (f3.3 - f5.8) × 5.69 = f18.8 - f33

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