Samsung NV24HD vs. Samsung NV15

Comparison

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Samsung NV24HD

Samsung NV15

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Megapixels

10.20

10.10

Max. image resolution

3648 x 2736

Sensor

Sensor type

CCD

Sensor size

1/2.3" (~ 6.16 x 4.62 mm)

1/1.76" (~ 7.27 x 5.46 mm)

Sensor resolution

3683 x 2769

3665 x 2756

Diagonal

7.70 mm

9.09 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	:	1.39
(ratio)

Samsung NV24HD		Samsung NV15

Surface area:

28.46 mm²

39.69 mm²

Difference: 11.23 mm² (39%)

NV15 sensor is approx. 1.39x bigger than NV24HD sensor.

Pixel pitch

1.67 µm

1.98 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: 0.31 µm (19%)

Pixel pitch of NV15 is approx. 19% higher than pixel pitch of NV24HD.

Pixel area

2.79 µm²

3.92 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: 1.13 µm² (41%)

A pixel on Samsung NV15 sensor is approx. 41% bigger than a pixel on Samsung NV24HD.

Pixel density

35.75 MP/cm²

25.41 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: 10.34 µm (41%)

Samsung NV24HD has approx. 41% higher pixel density than Samsung NV15.

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

Specs

Samsung NV24HD

Samsung NV15

Crop factor

5.62

4.76

Total megapixels

10.30

Effective megapixels

10.20

10.10

Optical zoom

3.6x

Digital zoom

Yes

ISO sensitivity

Auto, 80, 100, 200, 400, 800, 1600, (3200 at 3MP)

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

RAW

Manual focus

Normal focus range

40 cm

80 cm

Macro focus range

5 cm

4 cm

Focal length (35mm equiv.)

24 - 87 mm

34 - 102 mm

Aperture priority

Max. aperture

f2.8 - f5.9

f2.8 - f5.1

Max. aperture (35mm equiv.)

f15.7 - f33.2

f13.3 - f24.3

Metering

Multi, Center-weighted, Spot

Centre weighted, Multi Spot

Exposure compensation

±2 EV (in 1/3 EV steps)

Shutter priority

Yes

Min. shutter speed

8 sec

15 sec

Max. shutter speed

1/2000 sec

1/1500 sec

Built-in flash

External flash

Viewfinder

None

White balance presets

Screen size

2.5"

Screen resolution

230,000 dots

Video capture

Max. video resolution

Storage types

SD/MMC/SDHC card, Internal

MultiMedia, SDHC, Secure Digital

USB

USB 2.0 (480 Mbit/sec)

HDMI

Wireless

GPS

Battery

Lithium-Ion rechargeable

Weight

195 g

173 g

Dimensions

99 x 61 x 19 mm

96.5 x 60 x 18.6 mm

Year

2008

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

Samsung NV24HD diagonal

The diagonal of NV24HD 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

Samsung NV15 diagonal

The diagonal of NV15 sensor is not 1/1.76 or 0.57" (14.4 mm) as you might expect, but approximately two thirds of that value - 9.09 mm. If you want to know why, see sensor sizes.

w = 7.27 mm
h = 5.46 mm

Diagonal = √

7.27² + 5.46²

= 9.09 mm

Surface area

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

NV24HD sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

NV15 sensor area

Width = 7.27 mm
Height = 5.46 mm

Surface area = 7.27 × 5.46 = 39.69 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

NV24HD pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 3683 pixels

Pixel pitch =	6.16	× 1000	= 1.67 µm
	3683

NV15 pixel pitch

Sensor width = 7.27 mm
Sensor resolution width = 3665 pixels

Pixel pitch =	7.27	× 1000	= 1.98 µm
	3665

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

NV24HD pixel area

Pixel pitch = 1.67 µm

Pixel area = 1.67² = 2.79 µm²

NV15 pixel area

Pixel pitch = 1.98 µm

Pixel area = 1.98² = 3.92 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

NV24HD pixel density

Sensor resolution width = 3683 pixels
Sensor width = 0.616 cm

Pixel density = (3683 / 0.616)² / 1000000 = 35.75 MP/cm²

NV15 pixel density

Sensor resolution width = 3665 pixels
Sensor width = 0.727 cm

Pixel density = (3665 / 0.727)² / 1000000 = 25.41 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

NV24HD sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 10.20

r = 6.16/4.62 = 1.33

X = √	10.20 × 1000000	= 2769
	1.33

Resolution horizontal: X × r = 2769 × 1.33 = 3683
Resolution vertical: X = 2769

Sensor resolution = 3683 x 2769

NV15 sensor resolution

Sensor width = 7.27 mm
Sensor height = 5.46 mm
Effective megapixels = 10.10

r = 7.27/5.46 = 1.33

X = √	10.10 × 1000000	= 2756
	1.33

Resolution horizontal: X × r = 2756 × 1.33 = 3665
Resolution vertical: X = 2756

Sensor resolution = 3665 x 2756

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

NV24HD crop factor

Sensor diagonal in mm = 7.70 mm

Crop factor =	43.27	= 5.62
	7.70

NV15 crop factor

Sensor diagonal in mm = 9.09 mm

Crop factor =	43.27	= 4.76
	9.09

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).

NV24HD equivalent aperture

Crop factor = 5.62
Aperture = f2.8 - f5.9

35-mm equivalent aperture = (f2.8 - f5.9) × 5.62 = f15.7 - f33.2

NV15 equivalent aperture

Crop factor = 4.76
Aperture = f2.8 - f5.1

35-mm equivalent aperture = (f2.8 - f5.1) × 4.76 = f13.3 - f24.3

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