Nokia 808 PureView vs. Nokia Lumia 1020

Comparison

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808 PureView image
vs
Lumia 1020 image
Nokia 808 PureView Nokia Lumia 1020
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Megapixels
41.48
41.33
Max. image resolution
7152 x 5368
7136 x 5360

Sensor

Sensor type
CMOS
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
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
1.57 : 1
(ratio)
Nokia 808 PureView Nokia Lumia 1020
Surface area:
81.37 mm² vs 51.84 mm²
Difference: 29.53 mm² (57%)
808 PureView sensor is approx. 1.57x bigger than Lumia 1020 sensor.
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.
Difference: 0.28 µm (25%)
Pixel pitch of 808 PureView is approx. 25% higher than pixel pitch of 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:
vs
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.
Difference: 28.7 µm (56%)
Nokia Lumia 1020 has approx. 56% higher pixel density than Nokia 808 PureView.
To learn about the accuracy of these numbers, click here.

Specs

Nokia 808 PureView
Nokia Lumia 1020
Crop factor
3.28
4.11
Total megapixels
41.48
41.33
Effective megapixels
Optical zoom
Digital zoom
Yes
Yes
ISO sensitivity
50 - 1600
100, 200, 400, 800, 1600, 3200
RAW
Manual focus
Normal focus range
Macro focus range
15 cm
15 cm
Focal length (35mm equiv.)
28 mm
27 mm
Aperture priority
No
Max. aperture
f2.4
f2.2
Max. aperture (35mm equiv.)
f7.9
f9
Metering
Exposure compensation
±3 EV (in 1/3 EV steps)
Shutter priority
No
Min. shutter speed
4 sec
Max. shutter speed
1/16000 sec
Built-in flash
External flash
Viewfinder
White balance presets
4
4
Screen size
4"
4,5"
Screen resolution
640 x 360 dots
1280 x 768 dots
Video capture
Max. video resolution
1920x1080 (30p)
Storage types
16 GB on-board memory
32 GB on-board memory
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
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.

808 PureView sensor area

Width = 10.82 mm
Height = 7.52 mm

Surface area = 10.82 × 7.52 = 81.37 mm²

Lumia 1020 sensor 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

808 PureView pixel pitch

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

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

808 PureView pixel area

Pixel pitch = 1.4 µm

Pixel area = 1.4² = 1.96 µm²

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

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

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

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.

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

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

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


808 PureView crop factor

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

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).

808 PureView equivalent aperture

Crop factor = 3.28
Aperture = f2.4

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

Lumia 1020 equivalent aperture

Crop factor = 4.11
Aperture = f2.2

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

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