Leica M Typ 240 vs. Leica M9

Comparison

M Typ 240 image
vs.
M9 image

Comparison

Leica M Typ 240 Leica M9
Megapixels
24.00 18.00
Max. resolution
5952 x 3976 5212 x 3472
Price
Amazon, B&H Photo, Adorama Amazon, B&H Photo, Adorama

Sensor

Sensor type
CMOS CCD
Sensor size
36 x 24 mm 35.8 x 23.9 mm
Sensor resolution
6000 x 4000  5196 x 3464 
Diagonal
43.27 mm  43.04 mm 
Surface area
864.00 mm²  855.62 mm² 
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 sizes:
Leica M Typ 240
vs.
Leica M9
 
Surface area:
Leica M Typ 240
Leica M9
Difference: 8.38 mm² (1%)
Leica M Typ 240 has approx. 1% more surface area than Leica M9.
Note: You are comparing cameras of different generations. There is a 3 year gap between Leica M Typ 240 (2012) and Leica M9 (2009). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
6 µm  6.89 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.
Pixel pitch
Leica M Typ 240
Leica M9
Difference: 0.89 µm (15%)
Pixel pitch of Leica M9 is approx. 15% higher than pixel pitch of Leica M Typ 240.
Pixel area
36 µm²  47.47 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:
Leica M Typ 240
vs.
Leica M9
Pixel area difference: 11.47 µm² (32%)
A pixel on Leica M9 sensor is approx. 32% bigger than a pixel on Leica M Typ 240.
Pixel density
2.78 MP/cm²  2.11 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.
Pixel density
Leica M Typ 240
Leica M9
Difference: 0.67 MP/cm² (32%)
Leica M Typ 240 has approx. 32% higher pixel density than Leica M9.
To learn about the accuracy of these numbers, click here.

Other specifications

Crop factor
1.01 
Total megapixels
n/a 18.50
Effective megapixels
24.00 18.00
Optical zoom
n/a n/a
Digital zoom
No No
Iso
Auto, Pull 100, 200-6400 Auto, Pull 80, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1250, 1600, 2000, 2500
Auto focus
n/a n/a
Manual focus
Yes Yes
Normal focus range
n/a n/a
Macro focus range
n/a n/a
Focal length (35mm equiv.)
n/a n/a
Aperture priority
Yes Yes
Aperture
n/a n/a
Aperture (35mm equiv.)
n/a  n/a 
Metering
Center-weighted Centre weighted
Exposure compensation
±3 EV (at 1/3 EV steps) -2EV - +2EV with 1/3EV steps
Shutter priority
No No
Min. shutter speed
60 sec 4 sec
Max. shutter speed
1/4000 sec 1/4000 sec
Flash modes
Front Curtain, Rear Curtain, Slow sync Front Curtain, Rear Curtain, Slow sync
Built-in flash
No No
External flash
Yes Yes
Viewfinder
Optical (rangefinder) Optical (rangefinder)
White balance presets
6 6
LCD display
Yes Yes
LCD size
3" 2.5"
LCD resolution
920,000 230,000
Min. image resolution
1280 x 846 1280 x 846
Selftimer
Yes Yes
Storage types
SD/SDHC/SDXC SDHC, Secure Digital
USB
USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
Batteries
Lithium-Ion rechargeable battery & charger Lithium-Ion rechargeable battery & charger
Weight
680g 585g
Dimensions
139x80x42 mm 139x37x80 mm
Year
2012 2009



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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 M Typ 240 diagonal

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

Leica M9 diagonal

w = 35.80 mm
h = 23.90 mm
Diagonal =  35.80² + 23.90²   = 43.04 mm


Surface area

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

Leica M Typ 240 surface area

Width = 36.00 mm
Height = 24.00 mm

Surface area = 36.00 × 24.00 = 864.00 mm²

Leica M9 surface area

Width = 35.80 mm
Height = 23.90 mm

Surface area = 35.80 × 23.90 = 855.62 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

Leica M Typ 240 pixel pitch

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

Leica M9 pixel pitch

Sensor width = 35.80 mm
Sensor resolution width = 5196 pixels
Pixel pitch =   35.80  × 1000  = 6.89 µm
5196


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

Leica M Typ 240 pixel area

Pixel pitch = 6 µm

Pixel area = 6² = 36 µm²

Leica M9 pixel area

Pixel pitch = 6.89 µm

Pixel area = 6.89² = 47.47 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

You could also use this formula:
Pixel density =   effective megapixels × 1000000  / 10000
sensor surface area in mm²

Leica 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

Leica M9 pixel density

Sensor resolution width = 5196 pixels
Sensor width = 3.58 cm

Pixel density = (5196 / 3.58)² / 1000000 = 2.11 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. 22.8 × 15.5 sensor for example has a ratio of 1.47.

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

Leica 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

Leica M9 sensor resolution

Sensor width = 35.80 mm
Sensor height = 23.90 mm
Effective megapixels = 18.00
r = 35.80/23.90 = 1.5
X =  18.00 × 1000000  = 3464
1.5
Resolution horizontal: X × r = 3464 × 1.5 = 5196
Resolution vertical: X = 3464

Sensor resolution = 5196 x 3464


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


Leica M Typ 240 crop factor

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

Leica M9 crop factor

Sensor diagonal in mm = 43.04 mm
Crop factor =   43.27  = 1.01
43.04

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).

Leica 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.

Leica M9 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 M9, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Leica M9 is 1.01


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