Olympus E-3 vs. Nikon D5200

Comparison

E-3 image
vs.
D5200 image

 

Olympus E-3 Nikon D5200
Megapixels
10.10 24.10
Max. resolution
3648 x 2736 6000 x 4000
Price
Amazon, B&H Photo, Adorama Amazon, B&H Photo, Adorama

Sensor

Sensor type
Live MOS CMOS
Sensor size
Four Thirds (17.3 x 13 mm) 23.5 x 15.6 mm
Sensor resolution
3665 x 2756  6032 x 3995 
Diagonal
21.64 mm  28.21 mm 
Surface area
224.90 mm²  366.60 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:
Olympus E-3
vs.
Nikon D5200
 
Surface area:
Olympus E-3
Nikon D5200
Difference: 141.7 mm² (63%)
Nikon D5200 has approx. 63% more surface area than Olympus E-3.
Note: You are comparing cameras of different generations. There is a 5 year gap between Olympus E-3 (2007) and Nikon D5200 (2012). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
4.72 µm  3.9 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
Olympus E-3
Nikon D5200
Difference: 0.82 µm (21%)
Pixel pitch of Olympus E-3 is approx. 21% higher than pixel pitch of Nikon D5200.
Pixel area
22.28 µm²  15.21 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:
Olympus E-3
vs.
Nikon D5200
Pixel area difference: 7.07 µm² (46%)
A pixel on Olympus E-3 sensor is approx. 46% bigger than a pixel on Nikon D5200.
Pixel density
4.49 MP/cm²  6.59 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
Olympus E-3
Nikon D5200
Difference: 2.1 MP/cm² (47%)
Nikon D5200 has approx. 47% higher pixel density than Olympus E-3.
To learn about the accuracy of these numbers, click here.

Other specifications

Crop factor
1.53 
Total megapixels
11.80 24.71
Effective megapixels
10.10 24.10
Optical zoom
n/a n/a
Digital zoom
No No
Iso
Auto, 100 - 3200 Auto, 100, 200, 400, 800, 1600, 3200, 6400 (12800 with boost)
Auto focus
Yes Yes
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
49-zone Multi-pattern, Centre weighted, ESP Digital, Spot Multi, Center-weighted, Spot
Exposure compensation
-5EV - +5EV with 1, 1/2 or 1/3 s ±5 EV (at 1/3 EV, 1/2 EV steps)
Shutter priority
Yes Yes
Min. shutter speed
Bulb+60 sec 30 sec
Max. shutter speed
1/8000 sec 1/4000 sec
Flash modes
Anti red-eye, Auto, Fill in, Off, Slow flash Auto, On, Off, Red-eye, Slow sync, Rear curtain
Built-in flash
Yes Yes
External flash
Yes Yes
Viewfinder
Optical (pentaprism) Optical (pentamirror)
White balance presets
8 12
LCD display
Yes Yes
LCD size
2.5" 3"
LCD resolution
230,000 921,000
Min. image resolution
640 x 480 2992 x 2000
Selftimer
Yes Yes
Storage types
CompactFlash type I, CompactFlash type II, Microdrive, xD Picture SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
Batteries
Lithium-Ion rechargeable Lithium-Ion EN-EL14 rechargeable battery & charger
Weight
800g 555 g
Dimensions
142x116x74.5 mm 129 x 98 x 78 mm
Year
2007 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

Olympus E-3 diagonal

w = 17.30 mm
h = 13.00 mm
Diagonal =  17.30² + 13.00²   = 21.64 mm

Nikon D5200 diagonal

w = 23.50 mm
h = 15.60 mm
Diagonal =  23.50² + 15.60²   = 28.21 mm


Surface area

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

Olympus E-3 surface area

Width = 17.30 mm
Height = 13.00 mm

Surface area = 17.30 × 13.00 = 224.90 mm²

Nikon D5200 surface area

Width = 23.50 mm
Height = 15.60 mm

Surface area = 23.50 × 15.60 = 366.60 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

Olympus E-3 pixel pitch

Sensor width = 17.30 mm
Sensor resolution width = 3665 pixels
Pixel pitch =   17.30  × 1000  = 4.72 µm
3665

Nikon D5200 pixel pitch

Sensor width = 23.50 mm
Sensor resolution width = 6032 pixels
Pixel pitch =   23.50  × 1000  = 3.9 µm
6032


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

Olympus E-3 pixel area

Pixel pitch = 4.72 µm

Pixel area = 4.72² = 22.28 µm²

Nikon D5200 pixel area

Pixel pitch = 3.9 µm

Pixel area = 3.9² = 15.21 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

Olympus E-3 pixel density

Sensor resolution width = 3665 pixels
Sensor width = 1.73 cm

Pixel density = (3665 / 1.73)² / 1000000 = 4.49 MP/cm²

Nikon D5200 pixel density

Sensor resolution width = 6032 pixels
Sensor width = 2.35 cm

Pixel density = (6032 / 2.35)² / 1000000 = 6.59 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

Olympus E-3 sensor resolution

Sensor width = 17.30 mm
Sensor height = 13.00 mm
Effective megapixels = 10.10
r = 17.30/13.00 = 1.33
X =  10.10 × 1000000  = 2756
1.33
Resolution horizontal: X × r = 2756 × 1.33 = 3665
Resolution vertical: X = 2756

Sensor resolution = 3665 x 2756

Nikon D5200 sensor resolution

Sensor width = 23.50 mm
Sensor height = 15.60 mm
Effective megapixels = 24.10
r = 23.50/15.60 = 1.51
X =  24.10 × 1000000  = 3995
1.51
Resolution horizontal: X × r = 3995 × 1.51 = 6032
Resolution vertical: X = 3995

Sensor resolution = 6032 x 3995


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


Olympus E-3 crop factor

Sensor diagonal in mm = 21.64 mm
Crop factor =   43.27  = 2
21.64

Nikon D5200 crop factor

Sensor diagonal in mm = 28.21 mm
Crop factor =   43.27  = 1.53
28.21

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).

Olympus E-3 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 Olympus E-3, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Olympus E-3 is 2

Nikon D5200 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 Nikon D5200, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Nikon D5200 is 1.53


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