Fujifilm FinePix AV100 vs. Olympus SH-25MR

Comparison

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FinePix AV100 image
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SH-25MR image
Fujifilm FinePix AV100 Olympus SH-25MR
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Megapixels
12.20
16.80
Max. image resolution
4000 x 3000
4608 x 3456

Sensor

Sensor type
CCD
CMOS
Sensor size
1/2.3" (~ 6.16 x 4.62 mm)
1/2.3" (~ 6.16 x 4.62 mm)
Sensor resolution
4029 x 3029
4727 x 3554
Diagonal
7.70 mm
7.70 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 »
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1 : 1
(ratio)
Fujifilm FinePix AV100 Olympus SH-25MR
Surface area:
28.46 mm² vs 28.46 mm²
Difference: 0 mm² (0%)
AV100 and SH-25MR sensors are the same size.
Note: You are comparing cameras of different generations. There is a 2 year gap between Fujifilm AV100 (2010) and Olympus SH-25MR (2012). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
1.53 µm
1.3 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: 0.23 µm (18%)
Pixel pitch of AV100 is approx. 18% higher than pixel pitch of SH-25MR.
Pixel area
2.34 µm²
1.69 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: 0.65 µm² (38%)
A pixel on Fujifilm AV100 sensor is approx. 38% bigger than a pixel on Olympus SH-25MR.
Pixel density
42.78 MP/cm²
58.89 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: 16.11 µm (38%)
Olympus SH-25MR has approx. 38% higher pixel density than Fujifilm AV100.
To learn about the accuracy of these numbers, click here.



Specs

Fujifilm AV100
Olympus SH-25MR
Crop factor
5.62
5.62
Total megapixels
Effective megapixels
Optical zoom
Yes
Yes
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400, 800, 1600, 3200
Auto, 80, 100, 200, 400, 800, 1600, 3200, 6400
RAW
Manual focus
Normal focus range
60 cm
10 cm
Macro focus range
10 cm
1 cm
Focal length (35mm equiv.)
32 - 96 mm
24 - 300 mm
Aperture priority
No
No
Max. aperture
f2.9 - f5.2
f3.0 - f5.9
Max. aperture (35mm equiv.)
f16.3 - f29.2
f16.9 - f33.2
Metering
TTL 256-zones metering
Centre weighted, Multi-segment, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
8 sec
4 sec
Max. shutter speed
1/1400 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
7
Screen size
2.7"
3"
Screen resolution
230,000 dots
460,000 dots
Video capture
Max. video resolution
Storage types
SDHC, Secure Digital
SDHC, SDXC, Secure Digital
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
2x AA
Li-Ion
Weight
119 g
208 g
Dimensions
93.0 x 60.2 x 27.8 mm
109.2 x 61.8 x 30.6 mm
Year
2010
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

Fujifilm AV100 diagonal

The diagonal of AV100 sensor is not 1/2.3 or 0.43" (11 mm) as you might expect, but approximately two thirds of that value - 7.7 mm. If you want to know why, see sensor sizes.

w = 6.16 mm
h = 4.62 mm
Diagonal = √  6.16² + 4.62²   = 7.70 mm

Olympus SH-25MR diagonal

The diagonal of SH-25MR sensor is not 1/2.3 or 0.43" (11 mm) as you might expect, but approximately two thirds of that value - 7.7 mm. If you want to know why, see sensor sizes.

w = 6.16 mm
h = 4.62 mm
Diagonal = √  6.16² + 4.62²   = 7.70 mm


Surface area

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

AV100 sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

SH-25MR sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 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

AV100 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4029 pixels
Pixel pitch =   6.16  × 1000  = 1.53 µm
4029

SH-25MR pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4727 pixels
Pixel pitch =   6.16  × 1000  = 1.3 µm
4727


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

AV100 pixel area

Pixel pitch = 1.53 µm

Pixel area = 1.53² = 2.34 µm²

SH-25MR pixel area

Pixel pitch = 1.3 µm

Pixel area = 1.3² = 1.69 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

AV100 pixel density

Sensor resolution width = 4029 pixels
Sensor width = 0.616 cm

Pixel density = (4029 / 0.616)² / 1000000 = 42.78 MP/cm²

SH-25MR pixel density

Sensor resolution width = 4727 pixels
Sensor width = 0.616 cm

Pixel density = (4727 / 0.616)² / 1000000 = 58.89 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

AV100 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 12.20
r = 6.16/4.62 = 1.33
X = √  12.20 × 1000000  = 3029
1.33
Resolution horizontal: X × r = 3029 × 1.33 = 4029
Resolution vertical: X = 3029

Sensor resolution = 4029 x 3029

SH-25MR sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.80
r = 6.16/4.62 = 1.33
X = √  16.80 × 1000000  = 3554
1.33
Resolution horizontal: X × r = 3554 × 1.33 = 4727
Resolution vertical: X = 3554

Sensor resolution = 4727 x 3554


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


AV100 crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

SH-25MR crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

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).

AV100 equivalent aperture

Crop factor = 5.62
Aperture = f2.9 - f5.2

35-mm equivalent aperture = (f2.9 - f5.2) × 5.62 = f16.3 - f29.2

SH-25MR equivalent aperture

Crop factor = 5.62
Aperture = f3.0 - f5.9

35-mm equivalent aperture = (f3.0 - f5.9) × 5.62 = f16.9 - f33.2

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