Epson PhotoPC 500 vs. Epson PhotoPC 600

Comparison

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Epson PhotoPC 500

Epson PhotoPC 600

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Megapixels

0.30

0.70

Max. image resolution

640 x 480

1024 x 768

Sensor

Sensor type

CCD

Sensor size

1/3" (~ 4.8 x 3.6 mm)

Sensor resolution

632 x 475

964 x 725

Diagonal

6.00 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
(ratio)

Epson PhotoPC 500		Epson PhotoPC 600

Surface area:

17.28 mm²

Difference: 0 mm² (0%)

500 and 600 sensors are the same size.

Pixel pitch

7.59 µm

4.98 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: 2.61 µm (52%)

Pixel pitch of 500 is approx. 52% higher than pixel pitch of 600.

Pixel area

57.61 µm²

24.8 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: 32.81 µm² (132%)

A pixel on Epson 500 sensor is approx. 132% bigger than a pixel on Epson 600.

Pixel density

1.73 MP/cm²

4.03 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: 2.3 µm (133%)

Epson 600 has approx. 133% higher pixel density than Epson 500.

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

Specs

Epson 500

Epson 600

Crop factor

7.21

Total megapixels

Effective megapixels

Optical zoom

Digital zoom

Yes

ISO sensitivity

130

100

RAW

Manual focus

Normal focus range

60 cm

50 cm

Macro focus range

20 cm

Focal length (35mm equiv.)

43 mm

36 mm

Aperture priority

Max. aperture

f2.8 - f8.0

f2.8 - f5.6

Max. aperture (35mm equiv.)

f20.2 - f57.7

f20.2 - f40.4

Metering

Multi, Center-weighted, Spot

Exposure compensation

±2 EV (in 1/2 EV steps)

Shutter priority

Min. shutter speed

1/30 sec

1/4 sec

Max. shutter speed

1/10000 sec

1/500 sec

Built-in flash

External flash

Viewfinder

Optical (tunnel)

None

White balance presets

Screen size

Screen resolution

110,000 dots

Video capture

Max. video resolution

Storage types

Internal, optional Epson cards

Compact Flash, Internal

USB

USB 1.0

HDMI

Wireless

GPS

Battery

AA (4) batteries (NiMH recommended)

AA NiMH (4) batteries (supplied)

Weight

320 g

270 g

Dimensions

142 x 81 x 53 mm

143 x 70 x 49 mm

Year

1997

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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

Epson 500 diagonal

The diagonal of 500 sensor is not 1/3 or 0.33" (8.5 mm) as you might expect, but approximately two thirds of that value - 6 mm. If you want to know why, see sensor sizes.

w = 4.80 mm
h = 3.60 mm

Diagonal = √

4.80² + 3.60²

= 6.00 mm

Epson 600 diagonal

The diagonal of 600 sensor is not 1/3 or 0.33" (8.5 mm) as you might expect, but approximately two thirds of that value - 6 mm. If you want to know why, see sensor sizes.

w = 4.80 mm
h = 3.60 mm

Diagonal = √

4.80² + 3.60²

= 6.00 mm

Surface area

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

500 sensor area

Width = 4.80 mm
Height = 3.60 mm

Surface area = 4.80 × 3.60 = 17.28 mm²

600 sensor area

Width = 4.80 mm
Height = 3.60 mm

Surface area = 4.80 × 3.60 = 17.28 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

500 pixel pitch

Sensor width = 4.80 mm
Sensor resolution width = 632 pixels

Pixel pitch =	4.80	× 1000	= 7.59 µm
	632

600 pixel pitch

Sensor width = 4.80 mm
Sensor resolution width = 964 pixels

Pixel pitch =	4.80	× 1000	= 4.98 µm
	964

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

500 pixel area

Pixel pitch = 7.59 µm

Pixel area = 7.59² = 57.61 µm²

600 pixel area

Pixel pitch = 4.98 µm

Pixel area = 4.98² = 24.8 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

500 pixel density

Sensor resolution width = 632 pixels
Sensor width = 0.48 cm

Pixel density = (632 / 0.48)² / 1000000 = 1.73 MP/cm²

600 pixel density

Sensor resolution width = 964 pixels
Sensor width = 0.48 cm

Pixel density = (964 / 0.48)² / 1000000 = 4.03 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

500 sensor resolution

Sensor width = 4.80 mm
Sensor height = 3.60 mm
Effective megapixels = 0.30

r = 4.80/3.60 = 1.33

X = √	0.30 × 1000000	= 475
	1.33

Resolution horizontal: X × r = 475 × 1.33 = 632
Resolution vertical: X = 475

Sensor resolution = 632 x 475

600 sensor resolution

Sensor width = 4.80 mm
Sensor height = 3.60 mm
Effective megapixels = 0.70

r = 4.80/3.60 = 1.33

X = √	0.70 × 1000000	= 725
	1.33

Resolution horizontal: X × r = 725 × 1.33 = 964
Resolution vertical: X = 725

Sensor resolution = 964 x 725

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

500 crop factor

Sensor diagonal in mm = 6.00 mm

Crop factor =	43.27	= 7.21
	6.00

600 crop factor

Sensor diagonal in mm = 6.00 mm

Crop factor =	43.27	= 7.21
	6.00

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).

500 equivalent aperture

Crop factor = 7.21
Aperture = f2.8 - f8.0

35-mm equivalent aperture = (f2.8 - f8.0) × 7.21 = f20.2 - f57.7

600 equivalent aperture

Crop factor = 7.21
Aperture = f2.8 - f5.6

35-mm equivalent aperture = (f2.8 - f5.6) × 7.21 = f20.2 - f40.4

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