Kodak EasyShare LS755 vs. Kodak EasyShare LS753

Comparison

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EasyShare LS755 image
vs
EasyShare LS753 image
Kodak EasyShare LS755 Kodak EasyShare LS753
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Megapixels
5.00
5.00
Max. image resolution
2592 x 1944
2569 x 1929

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.5" (~ 5.75 x 4.32 mm)
1/1.8" (~ 7.11 x 5.33 mm)
Sensor resolution
2579 x 1939
2579 x 1939
Diagonal
7.19 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 : 1.53
(ratio)
Kodak EasyShare LS755 Kodak EasyShare LS753
Surface area:
24.84 mm² vs 37.90 mm²
Difference: 13.06 mm² (53%)
LS753 sensor is approx. 1.53x bigger than LS755 sensor.
Pixel pitch
2.23 µm
2.76 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: 0.53 µm (24%)
Pixel pitch of LS753 is approx. 24% higher than pixel pitch of LS755.
Pixel area
4.97 µm²
7.62 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:
vs
Pixel area difference: 2.65 µm² (53%)
A pixel on Kodak LS753 sensor is approx. 53% bigger than a pixel on Kodak LS755.
Pixel density
20.12 MP/cm²
13.16 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: 6.96 µm (53%)
Kodak LS755 has approx. 53% higher pixel density than Kodak LS753.
To learn about the accuracy of these numbers, click here.



Specs

Kodak LS755
Kodak LS753
Crop factor
6.02
4.87
Total megapixels
5.20
5.30
Effective megapixels
5.00
5.00
Optical zoom
3x
3x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 64, 100, 200
Auto, 80, 100, 200, 400, 800
RAW
Manual focus
Normal focus range
70 cm
60 cm
Macro focus range
5 cm
12 cm
Focal length (35mm equiv.)
36 - 108 mm
36 - 108 mm
Aperture priority
No
No
Max. aperture
f2.8 - f4.7
f3.0 - f5.1
Max. aperture (35mm equiv.)
f16.9 - f28.3
f14.6 - f24.8
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/2 EV steps)
Shutter priority
No
No
Min. shutter speed
2 sec
16 sec
Max. shutter speed
1/2000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
None
Optical (tunnel)
White balance presets
5
4
Screen size
2.5"
1.8"
Screen resolution
207,000 dots
134,000 dots
Video capture
Max. video resolution
Storage types
xD-Picture Card, Internal
SD/MMC card, Internal
USB
USB 1.0
USB 1.0
HDMI
Wireless
GPS
Battery
Kodak Lithium-Ion (included)
Kodak Lithium-Ion (included)
Weight
210 g
220 g
Dimensions
95 x 62 x 25 mm
108 x 49 x 30 mm
Year
2004
2004




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vs

Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal =  w² + h²
where w = sensor width and h = sensor height

Kodak LS755 diagonal

The diagonal of LS755 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

Kodak LS753 diagonal

The diagonal of LS753 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.

LS755 sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 mm²

LS753 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

LS755 pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2579 pixels
Pixel pitch =   5.75  × 1000  = 2.23 µm
2579

LS753 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2579 pixels
Pixel pitch =   7.11  × 1000  = 2.76 µm
2579


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

LS755 pixel area

Pixel pitch = 2.23 µm

Pixel area = 2.23² = 4.97 µm²

LS753 pixel area

Pixel pitch = 2.76 µm

Pixel area = 2.76² = 7.62 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

LS755 pixel density

Sensor resolution width = 2579 pixels
Sensor width = 0.575 cm

Pixel density = (2579 / 0.575)² / 1000000 = 20.12 MP/cm²

LS753 pixel density

Sensor resolution width = 2579 pixels
Sensor width = 0.711 cm

Pixel density = (2579 / 0.711)² / 1000000 = 13.16 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

LS755 sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 5.00
r = 5.75/4.32 = 1.33
X =  5.00 × 1000000  = 1939
1.33
Resolution horizontal: X × r = 1939 × 1.33 = 2579
Resolution vertical: X = 1939

Sensor resolution = 2579 x 1939

LS753 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 5.00
r = 7.11/5.33 = 1.33
X =  5.00 × 1000000  = 1939
1.33
Resolution horizontal: X × r = 1939 × 1.33 = 2579
Resolution vertical: X = 1939

Sensor resolution = 2579 x 1939


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


LS755 crop factor

Sensor diagonal in mm = 7.19 mm
Crop factor =   43.27  = 6.02
7.19

LS753 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).

LS755 equivalent aperture

Crop factor = 6.02
Aperture = f2.8 - f4.7

35-mm equivalent aperture = (f2.8 - f4.7) × 6.02 = f16.9 - f28.3

LS753 equivalent aperture

Crop factor = 4.87
Aperture = f3.0 - f5.1

35-mm equivalent aperture = (f3.0 - f5.1) × 4.87 = f14.6 - f24.8

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