Nokia Lumia 1020 vs. Nokia 808 PureView

Comparison

Lumia 1020 image
vs.
808 PureView image

Comparison

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

Sensor

Sensor type
BSI CMOS CMOS
Sensor size
8.64 x 6 mm 10.82 x 7.52 mm
Sensor resolution
7714 x 5357  7728 x 5367 
Diagonal
10.52 mm  13.18 mm 
Surface area
51.84 mm²  81.37 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 Lumia 1020
vs.
Nokia 808 PureView
 
Surface area:
Nokia Lumia 1020
Nokia 808 PureView
Difference: 29.53 mm² (57%)
Nokia 808 PureView has approx. 57% more surface area than Nokia Lumia 1020.
Pixel pitch
1.12 µm  1.4 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 Lumia 1020
Nokia 808 PureView
Difference: 0.28 µm (25%)
Pixel pitch of Nokia 808 PureView is approx. 25% higher than pixel pitch of Nokia Lumia 1020.
Pixel area
1.25 µm²  1.96 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 Lumia 1020
vs.
Nokia 808 PureView
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
79.71 MP/cm²  51.01 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 Lumia 1020
Nokia 808 PureView
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
4.11  3.28 
Total megapixels
41.33 41.48
Effective megapixels
n/a n/a
Optical zoom
n/a n/a
Digital zoom
Yes Yes
Iso
100, 200, 400, 800, 1600, 3200 50 - 1600
Auto focus
Yes Yes
Manual focus
Yes n/a
Normal focus range
n/a n/a
Macro focus range
15 cm 15 cm
Focal length (35mm equiv.)
27 mm 28 mm
Aperture priority
n/a n/a
Aperture
f2.2 f2.4
Aperture (35mm equiv.)
f9  f7.9 
Metering
n/a n/a
Exposure compensation
±3 n/a
Shutter priority
n/a n/a
Min. shutter speed
4 sec n/a
Max. shutter speed
1/16000 sec n/a
Flash modes
Off, Automatic, On Off, Automatic, Red-eye reduction, 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
4,5" 4"
LCD resolution
1280 x 768 640 x 360
Min. image resolution
n/a n/a
Selftimer
n/a Yes
Storage types
32 GB on-board memory 16 GB on-board memory
USB
USB 2.0 microUSB v2.0
Batteries
BV-5XW Li-Ion 1400 mAh (BV-4D)
Weight
158 g 169 g
Dimensions
130.4 x 71.4 x 10.4 mm 123.9 x 60.2 x 13.9 mm
Year
2013 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

Nokia Lumia 1020 diagonal

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

Nokia 808 PureView diagonal

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


Surface area

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

Nokia Lumia 1020 surface area

Width = 8.64 mm
Height = 6.00 mm

Surface area = 8.64 × 6.00 = 51.84 mm²

Nokia 808 PureView surface area

Width = 10.82 mm
Height = 7.52 mm

Surface area = 10.82 × 7.52 = 81.37 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 Lumia 1020 pixel pitch

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

Nokia 808 PureView pixel pitch

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


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 Lumia 1020 pixel area

Pixel pitch = 1.12 µm

Pixel area = 1.12² = 1.25 µm²

Nokia 808 PureView pixel area

Pixel pitch = 1.4 µm

Pixel area = 1.4² = 1.96 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 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

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


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 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

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


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 Lumia 1020 crop factor

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

Nokia 808 PureView crop factor

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

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 Lumia 1020 equivalent aperture

Crop factor = 4.11
Aperture = f2.2

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

Nokia 808 PureView equivalent aperture

Crop factor = 3.28
Aperture = f2.4

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


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