Nokia 808 PureView vs. Nokia Lumia 1020

Comparison

808 PureView image
vs.
Lumia 1020 image

Comparison

Nokia 808 PureView Nokia Lumia 1020
Megapixels
41.48 41.33
Max. resolution
7152 x 5368 7136 x 5360
Price
Amazon, B&H Photo, Adorama Amazon, B&H Photo, Adorama

Sensor

Sensor type
CMOS BSI CMOS
Sensor size
10.82 x 7.52 mm 8.64 x 6 mm
Sensor resolution
7728 x 5367  7714 x 5357 
Diagonal
13.18 mm  10.52 mm 
Surface area
81.37 mm²  51.84 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:
Nokia 808 PureView
vs.
Nokia Lumia 1020
 
Surface area:
Nokia 808 PureView
Nokia Lumia 1020
Difference: 29.53 mm² (57%)
Nokia 808 PureView has approx. 57% more surface area than Nokia Lumia 1020.
Pixel pitch
1.4 µm  1.12 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
Nokia 808 PureView
Nokia Lumia 1020
Difference: 0.28 µm (25%)
Pixel pitch of Nokia 808 PureView is approx. 25% higher than pixel pitch of Nokia Lumia 1020.
Pixel area
1.96 µm²  1.25 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:
Nokia 808 PureView
vs.
Nokia Lumia 1020
Pixel area difference: 0.71 µm² (57%)
A pixel on Nokia 808 PureView sensor is approx. 57% bigger than a pixel on Nokia Lumia 1020.
Pixel density
51.01 MP/cm²  79.71 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
Nokia 808 PureView
Nokia Lumia 1020
Difference: 28.7 MP/cm² (56%)
Nokia Lumia 1020 has approx. 56% higher pixel density than Nokia 808 PureView.
To learn about the accuracy of these numbers, click here.

Other specifications

Crop factor
3.28  4.11 
Total megapixels
41.48 41.33
Effective megapixels
n/a n/a
Optical zoom
n/a n/a
Digital zoom
Yes Yes
Iso
50 - 1600 100, 200, 400, 800, 1600, 3200
Auto focus
Yes Yes
Manual focus
n/a Yes
Normal focus range
n/a n/a
Macro focus range
15 cm 15 cm
Focal length (35mm equiv.)
28 mm 27 mm
Aperture priority
n/a n/a
Aperture
f2.4 f2.2
Aperture (35mm equiv.)
f7.9  f9 
Metering
n/a n/a
Exposure compensation
n/a ±3
Shutter priority
n/a n/a
Min. shutter speed
n/a 4 sec
Max. shutter speed
n/a 1/16000 sec
Flash modes
Off, Automatic, Red-eye reduction, On Off, Automatic, On
Built-in flash
Yes Yes
External flash
No No
Viewfinder
n/a n/a
White balance presets
4 4
LCD display
Yes Yes
LCD size
4" 4,5"
LCD resolution
640 x 360 1280 x 768
Min. image resolution
n/a n/a
Selftimer
Yes n/a
Storage types
16 GB on-board memory 32 GB on-board memory
USB
microUSB v2.0 USB 2.0
Batteries
Li-Ion 1400 mAh (BV-4D) BV-5XW
Weight
169 g 158 g
Dimensions
123.9 x 60.2 x 13.9 mm 130.4 x 71.4 x 10.4 mm
Year
2012 2013



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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

Nokia 808 PureView diagonal

w = 10.82 mm
h = 7.52 mm
Diagonal =  10.82² + 7.52²   = 13.18 mm

Nokia Lumia 1020 diagonal

w = 8.64 mm
h = 6.00 mm
Diagonal =  8.64² + 6.00²   = 10.52 mm


Surface area

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

Nokia 808 PureView surface area

Width = 10.82 mm
Height = 7.52 mm

Surface area = 10.82 × 7.52 = 81.37 mm²

Nokia Lumia 1020 surface area

Width = 8.64 mm
Height = 6.00 mm

Surface area = 8.64 × 6.00 = 51.84 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

Nokia 808 PureView pixel pitch

Sensor width = 10.82 mm
Sensor resolution width = 7728 pixels
Pixel pitch =   10.82  × 1000  = 1.4 µm
7728

Nokia Lumia 1020 pixel pitch

Sensor width = 8.64 mm
Sensor resolution width = 7714 pixels
Pixel pitch =   8.64  × 1000  = 1.12 µm
7714


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

Nokia 808 PureView pixel area

Pixel pitch = 1.4 µm

Pixel area = 1.4² = 1.96 µm²

Nokia Lumia 1020 pixel area

Pixel pitch = 1.12 µm

Pixel area = 1.12² = 1.25 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

Nokia 808 PureView pixel density

Sensor resolution width = 7728 pixels
Sensor width = 1.082 cm

Pixel density = (7728 / 1.082)² / 1000000 = 51.01 MP/cm²

Nokia Lumia 1020 pixel density

Sensor resolution width = 7714 pixels
Sensor width = 0.864 cm

Pixel density = (7714 / 0.864)² / 1000000 = 79.71 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

Nokia 808 PureView sensor resolution

Sensor width = 10.82 mm
Sensor height = 7.52 mm
Effective megapixels = 41.48
r = 10.82/7.52 = 1.44
X =  41.48 × 1000000  = 5367
1.44
Resolution horizontal: X × r = 5367 × 1.44 = 7728
Resolution vertical: X = 5367

Sensor resolution = 7728 x 5367

Nokia Lumia 1020 sensor resolution

Sensor width = 8.64 mm
Sensor height = 6.00 mm
Effective megapixels = 41.33
r = 8.64/6.00 = 1.44
X =  41.33 × 1000000  = 5357
1.44
Resolution horizontal: X × r = 5357 × 1.44 = 7714
Resolution vertical: X = 5357

Sensor resolution = 7714 x 5357


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


Nokia 808 PureView crop factor

Sensor diagonal in mm = 13.18 mm
Crop factor =   43.27  = 3.28
13.18

Nokia Lumia 1020 crop factor

Sensor diagonal in mm = 10.52 mm
Crop factor =   43.27  = 4.11
10.52

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).

Nokia 808 PureView equivalent aperture

Crop factor = 3.28
Aperture = f2.4

35-mm equivalent aperture = (f2.4 ) × 3.28 = f7.9

Nokia Lumia 1020 equivalent aperture

Crop factor = 4.11
Aperture = f2.2

35-mm equivalent aperture = (f2.2) × 4.11 = f9


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