Nikon Coolpix 5700 vs. Nikon Coolpix 4500

Comparison

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Nikon Coolpix 5700

Nikon Coolpix 4500

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Megapixels

4.90

3.90

Max. image resolution

2560 x 1920

2272 x 1704

Sensor

Sensor type

CCD

Sensor size

2/3" (~ 8.8 x 6.6 mm)

1/1.8" (~ 7.11 x 5.33 mm)

Sensor resolution

2552 x 1919

2277 x 1712

Diagonal

11.00 mm

8.89 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
1.53	:	1
(ratio)

Nikon Coolpix 5700		Nikon Coolpix 4500

Surface area:

58.08 mm²

37.90 mm²

Difference: 20.18 mm² (53%)

5700 sensor is approx. 1.53x bigger than 4500 sensor.

Pixel pitch

3.45 µm

3.12 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: 0.33 µm (11%)

Pixel pitch of 5700 is approx. 11% higher than pixel pitch of 4500.

Pixel area

11.9 µm²

9.73 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: 2.17 µm² (22%)

A pixel on Nikon 5700 sensor is approx. 22% bigger than a pixel on Nikon 4500.

Pixel density

8.41 MP/cm²

10.26 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: 1.85 µm (22%)

Nikon 4500 has approx. 22% higher pixel density than Nikon 5700.

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

Specs

Nikon 5700

Nikon 4500

Crop factor

3.93

4.87

Total megapixels

5.20

4.10

Effective megapixels

4.90

3.90

Optical zoom

4.1x

Digital zoom

Yes

ISO sensitivity

Auto, 100, 200, 400, 800

RAW

Manual focus

Normal focus range

50 cm

30 cm

Macro focus range

3 cm

2 cm

Focal length (35mm equiv.)

35 - 280 mm

38 - 155 mm

Aperture priority

Yes

Max. aperture

f2.8 - f4.2

f2.6 - f5.1

Max. aperture (35mm equiv.)

f11 - f16.5

f12.7 - f24.8

Metering

256-segment Matrix, Centre weighted, Spot, Spot-AF

Exposure compensation

±2 EV (in 1/3 EV steps)

Shutter priority

Yes

Min. shutter speed

Bulb+8 sec

Max. shutter speed

1/4000 sec

1/2300 sec

Built-in flash

External flash

Viewfinder

Electronic

Optical (tunnel)

White balance presets

Screen size

1.5"

Screen resolution

110,000 dots

Video capture

Max. video resolution

Storage types

CompactFlash type I, CompactFlash type II, Microdrive

USB

USB 1.0

HDMI

Wireless

GPS

Battery

AA (4) batteries (NiMH recommended)

Nikon EN-EL1 Lithium-Ion included

Weight

530 g

420 g

Dimensions

108 x 76 x 102 mm

130 x 73 x 50 mm

Year

2002

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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

Nikon 5700 diagonal

The diagonal of 5700 sensor is not 2/3 or 0.67" (16.9 mm) as you might expect, but approximately two thirds of that value - 11 mm. If you want to know why, see sensor sizes.

w = 8.80 mm
h = 6.60 mm

Diagonal = √

8.80² + 6.60²

= 11.00 mm

Nikon 4500 diagonal

The diagonal of 4500 sensor is not 1/1.8 or 0.56" (14.1 mm) as you might expect, but approximately two thirds of that value - 8.89 mm. If you want to know why, see sensor sizes.

w = 7.11 mm
h = 5.33 mm

Diagonal = √

7.11² + 5.33²

= 8.89 mm

Surface area

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

5700 sensor area

Width = 8.80 mm
Height = 6.60 mm

Surface area = 8.80 × 6.60 = 58.08 mm²

4500 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 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

5700 pixel pitch

Sensor width = 8.80 mm
Sensor resolution width = 2552 pixels

Pixel pitch =	8.80	× 1000	= 3.45 µm
	2552

4500 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2277 pixels

Pixel pitch =	7.11	× 1000	= 3.12 µm
	2277

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

5700 pixel area

Pixel pitch = 3.45 µm

Pixel area = 3.45² = 11.9 µm²

4500 pixel area

Pixel pitch = 3.12 µm

Pixel area = 3.12² = 9.73 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

5700 pixel density

Sensor resolution width = 2552 pixels
Sensor width = 0.88 cm

Pixel density = (2552 / 0.88)² / 1000000 = 8.41 MP/cm²

4500 pixel density

Sensor resolution width = 2277 pixels
Sensor width = 0.711 cm

Pixel density = (2277 / 0.711)² / 1000000 = 10.26 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

5700 sensor resolution

Sensor width = 8.80 mm
Sensor height = 6.60 mm
Effective megapixels = 4.90

r = 8.80/6.60 = 1.33

X = √	4.90 × 1000000	= 1919
	1.33

Resolution horizontal: X × r = 1919 × 1.33 = 2552
Resolution vertical: X = 1919

Sensor resolution = 2552 x 1919

4500 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 3.90

r = 7.11/5.33 = 1.33

X = √	3.90 × 1000000	= 1712
	1.33

Resolution horizontal: X × r = 1712 × 1.33 = 2277
Resolution vertical: X = 1712

Sensor resolution = 2277 x 1712

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

5700 crop factor

Sensor diagonal in mm = 11.00 mm

Crop factor =	43.27	= 3.93
	11.00

4500 crop factor

Sensor diagonal in mm = 8.89 mm

Crop factor =	43.27	= 4.87
	8.89

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).

5700 equivalent aperture

Crop factor = 3.93
Aperture = f2.8 - f4.2

35-mm equivalent aperture = (f2.8 - f4.2) × 3.93 = f11 - f16.5

4500 equivalent aperture

Crop factor = 4.87
Aperture = f2.6 - f5.1

35-mm equivalent aperture = (f2.6 - f5.1) × 4.87 = f12.7 - f24.8

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