Yakumo Mega Image 34 vs. Leica S2

Comparison

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Mega Image 34 image
vs
S2 image
Yakumo Mega Image 34 Leica S2
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Megapixels
3.10
37.50
Max. image resolution
2848 x 2136
7500 x 5000

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.7" (~ 5.33 x 4 mm)
45 x 30 mm
Sensor resolution
2031 x 1527
7500 x 5000
Diagonal
6.66 mm
54.08 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

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vs
1 : 63.32
(ratio)
Yakumo Mega Image 34 Leica S2
Surface area:
21.32 mm² vs 1350.00 mm²
Difference: 1328.68 mm² (6232%)
S2 sensor is approx. 63.32x bigger than 34 sensor.
Note: You are comparing cameras of different generations. There is a 5 year gap between Yakumo 34 (2003) and Leica S2 (2008). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
2.62 µm
6 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: 3.38 µm (129%)
Pixel pitch of S2 is approx. 129% higher than pixel pitch of 34.
Pixel area
6.86 µm²
36 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: 29.14 µm² (425%)
A pixel on Leica S2 sensor is approx. 425% bigger than a pixel on Yakumo 34.
Pixel density
14.52 MP/cm²
2.78 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: 11.74 µm (422%)
Yakumo 34 has approx. 422% higher pixel density than Leica S2.
To learn about the accuracy of these numbers, click here.



Specs

Yakumo 34
Leica S2
Crop factor
6.5
0.8
Total megapixels
Effective megapixels
37.50
Optical zoom
Yes
Digital zoom
Yes
ISO sensitivity
Auto, 200, 400
Auto, 80-1250
RAW
Manual focus
Normal focus range
14 cm
Macro focus range
7 cm
Focal length (35mm equiv.)
36 - 72 mm
Aperture priority
No
Yes
Max. aperture
f2.9 - f3.8
Max. aperture (35mm equiv.)
f18.9 - f24.7
n/a
Metering
Centre weighted
Centre weighted, Multi-segment, Spot
Exposure compensation
±2 EV (in 1/2 EV steps)
±3 EV (in 1/3 EV steps)
Shutter priority
No
Yes
Min. shutter speed
4 sec
32 sec
Max. shutter speed
1/2000 sec
1/500 sec
Built-in flash
External flash
Viewfinder
Optical
Optical (pentaprism)
White balance presets
6
5
Screen size
1.5"
3"
Screen resolution
117,600 dots
460,000 dots
Video capture
Max. video resolution
Storage types
Secure Digital
CompactFlash type I, CompactFlash type II, Microdrive, SDHC Secure Digital
USB
USB 1.1
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Li-Ion
Lithium-Ion rechargeable battery
Weight
190 g
1400 g
Dimensions
117 x 54 x 30 mm
160 x 120 x 81 mm
Year
2003
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

Yakumo 34 diagonal

The diagonal of 34 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
Diagonal = √  5.33² + 4.00²   = 6.66 mm

Leica S2 diagonal

w = 45.00 mm
h = 30.00 mm
Diagonal = √  45.00² + 30.00²   = 54.08 mm


Surface area

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

34 sensor area

Width = 5.33 mm
Height = 4.00 mm

Surface area = 5.33 × 4.00 = 21.32 mm²

S2 sensor area

Width = 45.00 mm
Height = 30.00 mm

Surface area = 45.00 × 30.00 = 1350.00 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

34 pixel pitch

Sensor width = 5.33 mm
Sensor resolution width = 2031 pixels
Pixel pitch =   5.33  × 1000  = 2.62 µm
2031

S2 pixel pitch

Sensor width = 45.00 mm
Sensor resolution width = 7500 pixels
Pixel pitch =   45.00  × 1000  = 6 µm
7500


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

34 pixel area

Pixel pitch = 2.62 µm

Pixel area = 2.62² = 6.86 µm²

S2 pixel area

Pixel pitch = 6 µm

Pixel area = 6² = 36 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

34 pixel density

Sensor resolution width = 2031 pixels
Sensor width = 0.533 cm

Pixel density = (2031 / 0.533)² / 1000000 = 14.52 MP/cm²

S2 pixel density

Sensor resolution width = 7500 pixels
Sensor width = 4.5 cm

Pixel density = (7500 / 4.5)² / 1000000 = 2.78 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

34 sensor resolution

Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 3.10
r = 5.33/4.00 = 1.33
X = √  3.10 × 1000000  = 1527
1.33
Resolution horizontal: X × r = 1527 × 1.33 = 2031
Resolution vertical: X = 1527

Sensor resolution = 2031 x 1527

S2 sensor resolution

Sensor width = 45.00 mm
Sensor height = 30.00 mm
Effective megapixels = 37.50
r = 45.00/30.00 = 1.5
X = √  37.50 × 1000000  = 5000
1.5
Resolution horizontal: X × r = 5000 × 1.5 = 7500
Resolution vertical: X = 5000

Sensor resolution = 7500 x 5000


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


34 crop factor

Sensor diagonal in mm = 6.66 mm
Crop factor =   43.27  = 6.5
6.66

S2 crop factor

Sensor diagonal in mm = 54.08 mm
Crop factor =   43.27  = 0.8
54.08

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).

34 equivalent aperture

Crop factor = 6.5
Aperture = f2.9 - f3.8

35-mm equivalent aperture = (f2.9 - f3.8) × 6.5 = f18.9 - f24.7

S2 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Leica S2, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Leica S2 is 0.8

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