Fujifilm FinePix 3800 vs. Canon Digital IXUS 100 IS

Comparison

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Fujifilm FinePix 3800

Canon Digital IXUS 100 IS

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Megapixels

3.10

12.10

Max. image resolution

2048 x 1536

4000 x 3000

Sensor

Sensor type

CCD

Sensor size

1/2.7" (~ 5.33 x 4 mm)

1/2.3" (~ 6.16 x 4.62 mm)

Sensor resolution

2031 x 1527

4011 x 3016

Diagonal

6.66 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 »

	vs
1	:	1.33
(ratio)

Fujifilm FinePix 3800		Canon Digital IXUS 100 IS

Surface area:

21.32 mm²

28.46 mm²

Difference: 7.14 mm² (33%)

IXUS 100 IS sensor is approx. 1.33x bigger than 3800 sensor.

Note: You are comparing sensors of very different generations. There is a gap of 7 years between Fujifilm 3800 (2002) and Canon IXUS 100 IS (2009). Seven years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.

Pixel pitch

2.62 µm

1.54 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: 1.08 µm (70%)

Pixel pitch of 3800 is approx. 70% higher than pixel pitch of IXUS 100 IS.

Pixel area

6.86 µm²

2.37 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:

Pixel area difference: 4.49 µm² (189%)

A pixel on Fujifilm 3800 sensor is approx. 189% bigger than a pixel on Canon IXUS 100 IS.

Pixel density

14.52 MP/cm²

42.4 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: 27.88 µm (192%)

Canon IXUS 100 IS has approx. 192% higher pixel density than Fujifilm 3800.

To learn about the accuracy of these numbers, click here.

Specs

Fujifilm 3800

Canon IXUS 100 IS

Crop factor

6.5

5.62

Total megapixels

3.30

Effective megapixels

3.10

12.10

Optical zoom

Digital zoom

Yes

ISO sensitivity

100

Auto, 80, 100, 200, 400, 800, 1600

RAW

Manual focus

Normal focus range

80 cm

50 cm

Macro focus range

10 cm

3 cm

Focal length (35mm equiv.)

38 - 228 mm

33 - 100 mm

Aperture priority

Yes

Max. aperture

f2.8 - f8.2

f3.2 - f5.8

Max. aperture (35mm equiv.)

f18.2 - f53.3

f18 - f32.6

Metering

Multi, Average, Spot

Centre weighted, Evaluative, Spot

Exposure compensation

±2 EV (in 1/3 EV steps)

Shutter priority

Min. shutter speed

3 sec

15 sec

Max. shutter speed

1/1500 sec

Built-in flash

External flash

Viewfinder

Electronic

None

White balance presets

Screen size

1.8"

2,5"

Screen resolution

62,000 dots

230,000 dots

Video capture

Max. video resolution

Storage types

xD Picture Card

SD/SDHC/MMC/MMCplus/HD MMCplus

USB

USB 1.0

USB 2.0 (480 Mbit/sec)

HDMI

Wireless

GPS

Battery

AA (4) batteries (NiMH recommended)

Lithium-Ion NB-4L battery

Weight

400 g

155 g

Dimensions

100 x 77 x 69 mm

87 x 56 x 18 mm

Year

2002

2009

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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 3800 diagonal

The diagonal of 3800 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

Diagonal = √

5.33² + 4.00²

= 6.66 mm

Canon IXUS 100 IS diagonal

The diagonal of IXUS 100 IS 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.

3800 sensor area

Width = 5.33 mm
Height = 4.00 mm

Surface area = 5.33 × 4.00 = 21.32 mm²

IXUS 100 IS 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

3800 pixel pitch

Sensor width = 5.33 mm
Sensor resolution width = 2031 pixels

Pixel pitch =	5.33	× 1000	= 2.62 µm
	2031

IXUS 100 IS pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4011 pixels

Pixel pitch =	6.16	× 1000	= 1.54 µm
	4011

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

3800 pixel area

Pixel pitch = 2.62 µm

Pixel area = 2.62² = 6.86 µm²

IXUS 100 IS pixel area

Pixel pitch = 1.54 µm

Pixel area = 1.54² = 2.37 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

3800 pixel density

Sensor resolution width = 2031 pixels
Sensor width = 0.533 cm

Pixel density = (2031 / 0.533)² / 1000000 = 14.52 MP/cm²

IXUS 100 IS pixel density

Sensor resolution width = 4011 pixels
Sensor width = 0.616 cm

Pixel density = (4011 / 0.616)² / 1000000 = 42.4 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

3800 sensor resolution

Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 3.10

r = 5.33/4.00 = 1.33

X = √	3.10 × 1000000	= 1527
	1.33

Resolution horizontal: X × r = 1527 × 1.33 = 2031
Resolution vertical: X = 1527

Sensor resolution = 2031 x 1527

IXUS 100 IS sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 12.10

r = 6.16/4.62 = 1.33

X = √	12.10 × 1000000	= 3016
	1.33

Resolution horizontal: X × r = 3016 × 1.33 = 4011
Resolution vertical: X = 3016

Sensor resolution = 4011 x 3016

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

3800 crop factor

Sensor diagonal in mm = 6.66 mm

Crop factor =	43.27	= 6.5
	6.66

IXUS 100 IS 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).

3800 equivalent aperture

Crop factor = 6.5
Aperture = f2.8 - f8.2

35-mm equivalent aperture = (f2.8 - f8.2) × 6.5 = f18.2 - f53.3

IXUS 100 IS equivalent aperture

Crop factor = 5.62
Aperture = f3.2 - f5.8

35-mm equivalent aperture = (f3.2 - f5.8) × 5.62 = f18 - f32.6

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