Fujifilm FinePix J37 vs. Fujifilm FinePix A610

Comparison

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Fujifilm FinePix J37

Fujifilm FinePix A610

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Megapixels

12.20

6.10

Max. image resolution

4000 x 3000

2848 x 2136

Sensor

Sensor type

CCD

Sensor size

1/2.3" (~ 6.16 x 4.62 mm)

1/2.5" (~ 5.75 x 4.32 mm)

Sensor resolution

4029 x 3029

2849 x 2142

Diagonal

7.70 mm

7.19 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
1.15	:	1
(ratio)

Fujifilm FinePix J37		Fujifilm FinePix A610

Surface area:

28.46 mm²

24.84 mm²

Difference: 3.62 mm² (15%)

J37 sensor is approx. 1.15x bigger than A610 sensor.

Note: You are comparing cameras of different generations. There is a 2 year gap between Fujifilm J37 (2009) and Fujifilm A610 (2007). All things being equal, newer sensor generations generally outperform the older.

Pixel pitch

1.53 µm

2.02 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: 0.49 µm (32%)

Pixel pitch of A610 is approx. 32% higher than pixel pitch of J37.

Pixel area

2.34 µm²

4.08 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: 1.74 µm² (74%)

A pixel on Fujifilm A610 sensor is approx. 74% bigger than a pixel on Fujifilm J37.

Pixel density

42.78 MP/cm²

24.55 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: 18.23 µm (74%)

Fujifilm J37 has approx. 74% higher pixel density than Fujifilm A610.

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

Specs

Fujifilm J37

Fujifilm A610

Crop factor

5.62

6.02

Total megapixels

6.30

Effective megapixels

6.10

Optical zoom

Yes

Digital zoom

Yes

ISO sensitivity

Auto, 100, 200, 400, 800, 1600, 3200

Auto, 100, 200, 400

RAW

Manual focus

Normal focus range

60 cm

Macro focus range

10 cm

Focal length (35mm equiv.)

32 - 96 mm

39 - 117 mm

Aperture priority

Max. aperture

f2.9 - f5.2

f3 - f5.4

Max. aperture (35mm equiv.)

f16.3 - f29.2

f18.1 - f32.5

Metering

TTL 256-zones metering

256-segment Matrix

Exposure compensation

±2 EV (in 1/3 EV steps)

Shutter priority

Min. shutter speed

8 sec

4 sec

Max. shutter speed

1/1400 sec

1/1500 sec

Built-in flash

External flash

Viewfinder

None

White balance presets

Screen size

2.5"

Screen resolution

230,000 dots

115,000 dots

Video capture

Max. video resolution

Storage types

SDHC, Secure Digital

xD Picture card

USB

USB 2.0 (480 Mbit/sec)

HDMI

Wireless

GPS

Battery

Li-Ion

AA (2) batteries (NiMH recommended)

Weight

113 g

145 g

Dimensions

92.0 x 55.9 x 20.0 mm

97.5 x 61.9 x 31.0 mm

Year

2009

2007

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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 J37 diagonal

The diagonal of J37 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

Fujifilm A610 diagonal

The diagonal of A610 sensor is not 1/2.5 or 0.4" (10.2 mm) as you might expect, but approximately two thirds of that value - 7.19 mm. If you want to know why, see sensor sizes.

w = 5.75 mm
h = 4.32 mm

Diagonal = √

5.75² + 4.32²

= 7.19 mm

Surface area

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

J37 sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

A610 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 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

J37 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4029 pixels

Pixel pitch =	6.16	× 1000	= 1.53 µm
	4029

A610 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2849 pixels

Pixel pitch =	5.75	× 1000	= 2.02 µm
	2849

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

J37 pixel area

Pixel pitch = 1.53 µm

Pixel area = 1.53² = 2.34 µm²

A610 pixel area

Pixel pitch = 2.02 µm

Pixel area = 2.02² = 4.08 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

J37 pixel density

Sensor resolution width = 4029 pixels
Sensor width = 0.616 cm

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

A610 pixel density

Sensor resolution width = 2849 pixels
Sensor width = 0.575 cm

Pixel density = (2849 / 0.575)² / 1000000 = 24.55 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

J37 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

A610 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 6.10

r = 5.75/4.32 = 1.33

X = √	6.10 × 1000000	= 2142
	1.33

Resolution horizontal: X × r = 2142 × 1.33 = 2849
Resolution vertical: X = 2142

Sensor resolution = 2849 x 2142

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

J37 crop factor

Sensor diagonal in mm = 7.70 mm

Crop factor =	43.27	= 5.62
	7.70

A610 crop factor

Sensor diagonal in mm = 7.19 mm

Crop factor =	43.27	= 6.02
	7.19

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).

J37 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

A610 equivalent aperture

Crop factor = 6.02
Aperture = f3 - f5.4

35-mm equivalent aperture = (f3 - f5.4) × 6.02 = f18.1 - f32.5

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