Leica M8.2 vs. Leica M Typ 240

Comparison

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M8.2 image
vs
M Typ 240 image
Leica M8.2 Leica M Typ 240
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Megapixels
10.30
24.00
Max. image resolution
3936 x 2630
5952 x 3976

Sensor

Sensor type
CCD
CMOS
Sensor size
27 x 18 mm
36 x 24 mm
Sensor resolution
3930 x 2620
6000 x 4000
Diagonal
32.45 mm
43.27 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 : 1.78
(ratio)
Leica M8.2 Leica M Typ 240
Surface area:
486.00 mm² vs 864.00 mm²
Difference: 378 mm² (78%)
M Typ 240 sensor is approx. 1.78x bigger than M8.2 sensor.
Note: You are comparing cameras of different generations. There is a 4 year gap between Leica M8.2 (2008) and Leica M Typ 240 (2012). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
6.87 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: 0.87 µm (15%)
Pixel pitch of M8.2 is approx. 15% higher than pixel pitch of M Typ 240.
Pixel area
47.2 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: 11.2 µm² (31%)
A pixel on Leica M8.2 sensor is approx. 31% bigger than a pixel on Leica M Typ 240.
Pixel density
2.12 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: 0.66 µm (31%)
Leica M Typ 240 has approx. 31% higher pixel density than Leica M8.2.
To learn about the accuracy of these numbers, click here.



Specs

Leica M8.2
Leica M Typ 240
Crop factor
1.33
1
Total megapixels
10.30
Effective megapixels
10.30
24.00
Optical zoom
Digital zoom
No
No
ISO sensitivity
Auto, 160 - 2500
Auto, 200-6400 (extendable to 100)
RAW
Manual focus
Normal focus range
Macro focus range
Focal length (35mm equiv.)
Aperture priority
Yes
Yes
Max. aperture
Max. aperture (35mm equiv.)
n/a
n/a
Metering
Centre weighted
Center-weighted
Exposure compensation
±3 EV (in 1/3 EV steps)
±3 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
8 sec
60 sec
Max. shutter speed
1/8000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Optical (rangefinder)
Optical (rangefinder)
White balance presets
6
6
Screen size
2.5"
3"
Screen resolution
230,000 dots
920,000 dots
Video capture
Max. video resolution
1920x1080 (25p/24p)
Storage types
SDHC, Secure Digital
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion rechargeable battery
Lithium-Ion rechargeable battery
Weight
591 g
680 g
Dimensions
138.6 x 80.2 x 36.9 mm
139 x 42 x 80 mm
Year
2008
2012




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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

Leica M8.2 diagonal

w = 27.00 mm
h = 18.00 mm
Diagonal =  27.00² + 18.00²   = 32.45 mm

Leica M Typ 240 diagonal

w = 36.00 mm
h = 24.00 mm
Diagonal =  36.00² + 24.00²   = 43.27 mm


Surface area

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

M8.2 sensor area

Width = 27.00 mm
Height = 18.00 mm

Surface area = 27.00 × 18.00 = 486.00 mm²

M Typ 240 sensor area

Width = 36.00 mm
Height = 24.00 mm

Surface area = 36.00 × 24.00 = 864.00 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

M8.2 pixel pitch

Sensor width = 27.00 mm
Sensor resolution width = 3930 pixels
Pixel pitch =   27.00  × 1000  = 6.87 µm
3930

M Typ 240 pixel pitch

Sensor width = 36.00 mm
Sensor resolution width = 6000 pixels
Pixel pitch =   36.00  × 1000  = 6 µm
6000


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

M8.2 pixel area

Pixel pitch = 6.87 µm

Pixel area = 6.87² = 47.2 µm²

M Typ 240 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

M8.2 pixel density

Sensor resolution width = 3930 pixels
Sensor width = 2.7 cm

Pixel density = (3930 / 2.7)² / 1000000 = 2.12 MP/cm²

M Typ 240 pixel density

Sensor resolution width = 6000 pixels
Sensor width = 3.6 cm

Pixel density = (6000 / 3.6)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

M8.2 sensor resolution

Sensor width = 27.00 mm
Sensor height = 18.00 mm
Effective megapixels = 10.30
r = 27.00/18.00 = 1.5
X =  10.30 × 1000000  = 2620
1.5
Resolution horizontal: X × r = 2620 × 1.5 = 3930
Resolution vertical: X = 2620

Sensor resolution = 3930 x 2620

M Typ 240 sensor resolution

Sensor width = 36.00 mm
Sensor height = 24.00 mm
Effective megapixels = 24.00
r = 36.00/24.00 = 1.5
X =  24.00 × 1000000  = 4000
1.5
Resolution horizontal: X × r = 4000 × 1.5 = 6000
Resolution vertical: X = 4000

Sensor resolution = 6000 x 4000


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


M8.2 crop factor

Sensor diagonal in mm = 32.45 mm
Crop factor =   43.27  = 1.33
32.45

M Typ 240 crop factor

Sensor diagonal in mm = 43.27 mm
Crop factor =   43.27  = 1
43.27

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).

M8.2 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 M8.2, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Leica M8.2 is 1.33

M Typ 240 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 M Typ 240, take the aperture of the lens you're using and multiply it with crop factor.

Since crop factor for Leica M Typ 240 is 1, the equivalent aperture is aperture.

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