Olympus C-4040 Zoom vs. Leica Digilux 2

Comparison

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C-4040 Zoom image
vs
Digilux 2 image
Olympus C-4040 Zoom Leica Digilux 2
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Megapixels
3.90
4.90
Max. image resolution
3200 x 2400
2560 x 1920

Sensor

Sensor type
CCD
CCD
Sensor size
1/1.8" (~ 7.11 x 5.33 mm)
2/3" (~ 8.8 x 6.6 mm)
Sensor resolution
2277 x 1712
2552 x 1919
Diagonal
8.89 mm
11.00 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 : 1.53
(ratio)
Olympus C-4040 Zoom Leica Digilux 2
Surface area:
37.90 mm² vs 58.08 mm²
Difference: 20.18 mm² (53%)
Digilux 2 sensor is approx. 1.53x bigger than C-4040 Zoom sensor.
Note: You are comparing cameras of different generations. There is a 2 year gap between Olympus C-4040 Zoom (2001) and Leica Digilux 2 (2003). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
3.12 µm
3.45 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: 0.33 µm (11%)
Pixel pitch of Digilux 2 is approx. 11% higher than pixel pitch of C-4040 Zoom.
Pixel area
9.73 µm²
11.9 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: 2.17 µm² (22%)
A pixel on Leica Digilux 2 sensor is approx. 22% bigger than a pixel on Olympus C-4040 Zoom.
Pixel density
10.26 MP/cm²
8.41 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: 1.85 µm (22%)
Olympus C-4040 Zoom has approx. 22% higher pixel density than Leica Digilux 2.
To learn about the accuracy of these numbers, click here.



Specs

Olympus C-4040 Zoom
Leica Digilux 2
Crop factor
4.87
3.93
Total megapixels
4.10
5.20
Effective megapixels
3.90
4.90
Optical zoom
3x
3.2x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400
100, 200, 400
RAW
Manual focus
Normal focus range
80 cm
30 cm
Macro focus range
20 cm
30 cm
Focal length (35mm equiv.)
35 - 105 mm
28 - 90 mm
Aperture priority
Yes
Yes
Max. aperture
f1.8 - f2.6
f2.0 - f2.4
Max. aperture (35mm equiv.)
f8.8 - f12.7
f7.9 - f9.4
Metering
Centre weighted, ESP Digital, Multi Spot, Spot
Centre weighted, Multi-segment, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
16 sec
8 sec
Max. shutter speed
1/800 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
Electronic
White balance presets
6
7
Screen size
1.8"
2.5"
Screen resolution
114,000 dots
211,000 dots
Video capture
Max. video resolution
Storage types
SmartMedia
MultiMedia, Secure Digital
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA (4) batteries (NiMH recommended)
Lithium-Ion 1400 mAh supplied
Weight
430 g
630 g
Dimensions
110 x 76 x 70 mm
135 x 82 x 103 mm
Year
2001
2003




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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 C-4040 Zoom diagonal

The diagonal of C-4040 Zoom sensor is not 1/1.8 or 0.56" (14.1 mm) as you might expect, but approximately two thirds of that value - 8.89 mm. If you want to know why, see sensor sizes.

w = 7.11 mm
h = 5.33 mm
Diagonal =  7.11² + 5.33²   = 8.89 mm

Leica Digilux 2 diagonal

The diagonal of Digilux 2 sensor is not 2/3 or 0.67" (16.9 mm) as you might expect, but approximately two thirds of that value - 11 mm. If you want to know why, see sensor sizes.

w = 8.80 mm
h = 6.60 mm
Diagonal =  8.80² + 6.60²   = 11.00 mm


Surface area

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

C-4040 Zoom sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 mm²

Digilux 2 sensor area

Width = 8.80 mm
Height = 6.60 mm

Surface area = 8.80 × 6.60 = 58.08 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-4040 Zoom pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2277 pixels
Pixel pitch =   7.11  × 1000  = 3.12 µm
2277

Digilux 2 pixel pitch

Sensor width = 8.80 mm
Sensor resolution width = 2552 pixels
Pixel pitch =   8.80  × 1000  = 3.45 µm
2552


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

C-4040 Zoom pixel area

Pixel pitch = 3.12 µm

Pixel area = 3.12² = 9.73 µm²

Digilux 2 pixel area

Pixel pitch = 3.45 µm

Pixel area = 3.45² = 11.9 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

C-4040 Zoom pixel density

Sensor resolution width = 2277 pixels
Sensor width = 0.711 cm

Pixel density = (2277 / 0.711)² / 1000000 = 10.26 MP/cm²

Digilux 2 pixel density

Sensor resolution width = 2552 pixels
Sensor width = 0.88 cm

Pixel density = (2552 / 0.88)² / 1000000 = 8.41 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

C-4040 Zoom sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 3.90
r = 7.11/5.33 = 1.33
X =  3.90 × 1000000  = 1712
1.33
Resolution horizontal: X × r = 1712 × 1.33 = 2277
Resolution vertical: X = 1712

Sensor resolution = 2277 x 1712

Digilux 2 sensor resolution

Sensor width = 8.80 mm
Sensor height = 6.60 mm
Effective megapixels = 4.90
r = 8.80/6.60 = 1.33
X =  4.90 × 1000000  = 1919
1.33
Resolution horizontal: X × r = 1919 × 1.33 = 2552
Resolution vertical: X = 1919

Sensor resolution = 2552 x 1919


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-4040 Zoom crop factor

Sensor diagonal in mm = 8.89 mm
Crop factor =   43.27  = 4.87
8.89

Digilux 2 crop factor

Sensor diagonal in mm = 11.00 mm
Crop factor =   43.27  = 3.93
11.00

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).

C-4040 Zoom equivalent aperture

Crop factor = 4.87
Aperture = f1.8 - f2.6

35-mm equivalent aperture = (f1.8 - f2.6) × 4.87 = f8.8 - f12.7

Digilux 2 equivalent aperture

Crop factor = 3.93
Aperture = f2.0 - f2.4

35-mm equivalent aperture = (f2.0 - f2.4) × 3.93 = f7.9 - f9.4

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