Nikon Coolpix 2500 vs. Olympus OM-D E-M5
Comparison
| change cameras » | |||||
|
vs |
|
|||
| Nikon Coolpix 2500 | Olympus OM-D E-M5 | ||||
| check price » | check price » | ||||
Megapixels
1.90
16.10
Max. image resolution
1600 x 1200
4608 x 3456
Sensor
Sensor type
CCD
CMOS
Sensor size
1/2.7" (~ 5.33 x 4 mm)
Four Thirds (17.3 x 13 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 »
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 | : | 10.55 |
| (ratio) | ||
| Nikon Coolpix 2500 | Olympus OM-D E-M5 | |
Surface area:
| 21.32 mm² | vs | 224.90 mm² |
Difference: 203.58 mm² (955%)
OM-D E-M5 sensor is approx. 10.55x bigger than 2500 sensor.
Note: You are comparing sensors of very different generations.
There is a gap of 10 years between Nikon 2500 (2002) and Olympus OM-D E-M5 (2012).
Ten years is a lot of time in terms
of technology, meaning newer sensors are overall much more
efficient than the older ones.
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.
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 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.
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: 2.77 µm² (25%)
A pixel on Olympus OM-D E-M5 sensor is approx. 25% bigger than a pixel on Nikon 2500.
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.
Higher pixel density means smaller pixels and lower pixel density means larger pixels.
To learn about the accuracy of these numbers,
click here.
Specs
Nikon 2500
Olympus OM-D E-M5
Total megapixels
2.10
17.20
Effective megapixels
1.90
16.10
Optical zoom
3x
Digital zoom
Yes
No
ISO sensitivity
Auto, (100-400)
Auto, (200 - 25600), 200, 400, 800, 1600, 3200, 6400, 12800, 25600
RAW
Manual focus
Normal focus range
30 cm
Macro focus range
4 cm
Focal length (35mm equiv.)
37 - 111 mm
Aperture priority
No
Yes
Max. aperture
f2.7 - f4.7
Metering
256-segment Matrix
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±3 EV (in 1/3 EV, 1/2 EV, 1 EV steps)
Shutter priority
No
Yes
Min. shutter speed
2 sec
60 sec
Max. shutter speed
1/3000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
None
Electronic
White balance presets
6
12
Screen size
1.5"
3"
Screen resolution
110,000 dots
610,000 dots
Video capture
Max. video resolution
Storage types
CompactFlash type I
SD/SDHC/SDXC
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Nikon EN-EL2 Lithium-Ion included
Lithium-Ion BLN-1 rechargeable battery
Weight
205 g
425 g
Dimensions
60 x 114 x 32 mm
121.0 x 89.6 x 41.9 mm
Year
2002
2012
Choose cameras to compare
Popular comparisons:
- Nikon Coolpix 2500 vs. Nikon Coolpix 3500
- Nikon Coolpix 2500 vs. Nikon Coolpix S3600
- Nikon Coolpix 2500 vs. Nikon Coolpix S2500
- Nikon Coolpix 2500 vs. Canon EOS 6D
- Nikon Coolpix 2500 vs. AgfaPhoto DC-2030m
- Nikon Coolpix 2500 vs. Canon PowerShot ELPH 130 IS
- Nikon Coolpix 2500 vs. Sony Cyber-shot DSC-H100
- Nikon Coolpix 2500 vs. Nikon Coolpix S2700
- Nikon Coolpix 2500 vs. Fujifilm FinePix S1500
- Nikon Coolpix 2500 vs. Samsung ST150F
- Nikon Coolpix 2500 vs. Canon Digital IXUS
Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
| Diagonal = √ | w² + h² |
Nikon 2500 diagonal
The diagonal of 2500 sensor is not 1/2.7 or 0.37" (9.4 mm) as you might expect, but approximately two thirds of
that value - 6.66 mm. If you want to know why, see
sensor sizes.
w = 5.33 mm
h = 4.00 mm
w = 5.33 mm
h = 4.00 mm
| Diagonal = √ | 5.33² + 4.00² | = 6.66 mm |
Olympus OM-D E-M5 diagonal
w = 17.30 mm
h = 13.00 mm
h = 13.00 mm
| Diagonal = √ | 17.30² + 13.00² | = 21.64 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
2500 sensor area
Width = 5.33 mm
Height = 4.00 mm
Surface area = 5.33 × 4.00 = 21.32 mm²
Height = 4.00 mm
Surface area = 5.33 × 4.00 = 21.32 mm²
OM-D E-M5 sensor area
Width = 17.30 mm
Height = 13.00 mm
Surface area = 17.30 × 13.00 = 224.90 mm²
Height = 13.00 mm
Surface area = 17.30 × 13.00 = 224.90 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 |
2500 pixel pitch
Sensor width = 5.33 mm
Sensor resolution width = 1589 pixels
Sensor resolution width = 1589 pixels
| Pixel pitch = | 5.33 | × 1000 | = 3.35 µm |
| 1589 |
OM-D E-M5 pixel pitch
Sensor width = 17.30 mm
Sensor resolution width = 4627 pixels
Sensor resolution width = 4627 pixels
| Pixel pitch = | 17.30 | × 1000 | = 3.74 µm |
| 4627 |
Pixel area
The area of one pixel can be calculated by simply squaring the pixel pitch:
You could also divide sensor surface area with effective megapixels:
Pixel area = pixel pitch²
You could also divide sensor surface area with effective megapixels:
| Pixel area = | sensor surface area in mm² |
| effective megapixels |
2500 pixel area
Pixel pitch = 3.35 µm
Pixel area = 3.35² = 11.22 µm²
Pixel area = 3.35² = 11.22 µm²
OM-D E-M5 pixel area
Pixel pitch = 3.74 µm
Pixel area = 3.74² = 13.99 µm²
Pixel area = 3.74² = 13.99 µm²
Pixel density
Pixel density can be calculated with the following formula:
One could also use this 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 |
2500 pixel density
Sensor resolution width = 1589 pixels
Sensor width = 0.533 cm
Pixel density = (1589 / 0.533)² / 1000000 = 8.89 MP/cm²
Sensor width = 0.533 cm
Pixel density = (1589 / 0.533)² / 1000000 = 8.89 MP/cm²
OM-D E-M5 pixel density
Sensor resolution width = 4627 pixels
Sensor width = 1.73 cm
Pixel density = (4627 / 1.73)² / 1000000 = 7.15 MP/cm²
Sensor width = 1.73 cm
Pixel density = (4627 / 1.73)² / 1000000 = 7.15 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:
3. To get sensor resolution we then multiply X with the corresponding ratio:
Resolution horizontal: X × r
Resolution vertical: X
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 → |
|
Resolution horizontal: X × r
Resolution vertical: X
2500 sensor resolution
Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 1.90
Resolution horizontal: X × r = 1195 × 1.33 = 1589
Resolution vertical: X = 1195
Sensor resolution = 1589 x 1195
Sensor height = 4.00 mm
Effective megapixels = 1.90
| r = 5.33/4.00 = 1.33 |
|
Resolution vertical: X = 1195
Sensor resolution = 1589 x 1195
OM-D E-M5 sensor resolution
Sensor width = 17.30 mm
Sensor height = 13.00 mm
Effective megapixels = 16.10
Resolution horizontal: X × r = 3479 × 1.33 = 4627
Resolution vertical: X = 3479
Sensor resolution = 4627 x 3479
Sensor height = 13.00 mm
Effective megapixels = 16.10
| r = 17.30/13.00 = 1.33 |
|
Resolution vertical: X = 3479
Sensor resolution = 4627 x 3479
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 |
2500 crop factor
Sensor diagonal in mm = 6.66 mm
| Crop factor = | 43.27 | = 6.5 |
| 6.66 |
OM-D E-M5 crop factor
Sensor diagonal in mm = 21.64 mm
| Crop factor = | 43.27 | = 2 |
| 21.64 |
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).
2500 equivalent aperture
Crop factor = 6.5
Aperture = f2.7 - f4.7
35-mm equivalent aperture = (f2.7 - f4.7) × 6.5 = f17.6 - f30.6
Aperture = f2.7 - f4.7
35-mm equivalent aperture = (f2.7 - f4.7) × 6.5 = f17.6 - f30.6
OM-D E-M5 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 OM-D E-M5, take the aperture of the lens
you're using and multiply it with crop factor.
Crop factor for Olympus OM-D E-M5 is 2
Crop factor for Olympus OM-D E-M5 is 2
Enter your screen size (diagonal)
My screen size is
inches
Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.