AgfaPhoto Optima 103 vs. GE A1030

Comparison

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Optima 103 image
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A1030 image
AgfaPhoto Optima 103 GE A1030
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Megapixels
12.00
10.10
Max. image resolution
4000 x 3000

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.3" (~ 6.16 x 4.62 mm)
1/1.7" (~ 7.53 x 5.64 mm)
Sensor resolution
3995 x 3004
3678 x 2745
Diagonal
7.70 mm
9.41 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

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1 : 1.49
(ratio)
AgfaPhoto Optima 103 GE A1030
Surface area:
28.46 mm² vs 42.47 mm²
Difference: 14.01 mm² (49%)
A1030 sensor is approx. 1.49x bigger than Optima 103 sensor.
Note: You are comparing cameras of different generations. There is a 2 year gap between AgfaPhoto Optima 103 (2010) and GE A1030 (2008). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
1.54 µm
2.05 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: 0.51 µm (33%)
Pixel pitch of A1030 is approx. 33% higher than pixel pitch of Optima 103.
Pixel area
2.37 µm²
4.2 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: 1.83 µm² (77%)
A pixel on GE A1030 sensor is approx. 77% bigger than a pixel on AgfaPhoto Optima 103.
Pixel density
42.06 MP/cm²
23.86 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: 18.2 µm (76%)
AgfaPhoto Optima 103 has approx. 76% higher pixel density than GE A1030.
To learn about the accuracy of these numbers, click here.



Specs

AgfaPhoto Optima 103
GE A1030
Crop factor
5.62
4.6
Total megapixels
10.54
Effective megapixels
10.10
Optical zoom
Yes
Yes
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400, 800, 1600, 3200
Auto
RAW
Manual focus
Normal focus range
70 cm
Macro focus range
12 cm
Focal length (35mm equiv.)
29 - 110 mm
Aperture priority
No
No
Max. aperture
f2.8 - f6.3
f2.8 - f4.9
Max. aperture (35mm equiv.)
f15.7 - f35.4
f12.9 - f22.5
Metering
Centre weighted, Multi Spot, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
1 sec
Max. shutter speed
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
6
Screen size
2.7"
2.5"
Screen resolution
230,400 dots
Video capture
Max. video resolution
Storage types
SDHC, Secure Digital
SDHC, Secure Digital
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Li-Ion
2x AA
Weight
100 g
Dimensions
89.9 x 56.9 x 16.9 mm
Year
2010
2008




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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

AgfaPhoto Optima 103 diagonal

The diagonal of Optima 103 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

GE A1030 diagonal

The diagonal of A1030 sensor is not 1/1.7 or 0.59" (14.9 mm) as you might expect, but approximately two thirds of that value - 9.41 mm. If you want to know why, see sensor sizes.

w = 7.53 mm
h = 5.64 mm
Diagonal =  7.53² + 5.64²   = 9.41 mm


Surface area

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

Optima 103 sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

A1030 sensor area

Width = 7.53 mm
Height = 5.64 mm

Surface area = 7.53 × 5.64 = 42.47 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

Optima 103 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 3995 pixels
Pixel pitch =   6.16  × 1000  = 1.54 µm
3995

A1030 pixel pitch

Sensor width = 7.53 mm
Sensor resolution width = 3678 pixels
Pixel pitch =   7.53  × 1000  = 2.05 µm
3678


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

Optima 103 pixel area

Pixel pitch = 1.54 µm

Pixel area = 1.54² = 2.37 µm²

A1030 pixel area

Pixel pitch = 2.05 µm

Pixel area = 2.05² = 4.2 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

Optima 103 pixel density

Sensor resolution width = 3995 pixels
Sensor width = 0.616 cm

Pixel density = (3995 / 0.616)² / 1000000 = 42.06 MP/cm²

A1030 pixel density

Sensor resolution width = 3678 pixels
Sensor width = 0.753 cm

Pixel density = (3678 / 0.753)² / 1000000 = 23.86 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

Optima 103 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 12.00
r = 6.16/4.62 = 1.33
X =  12.00 × 1000000  = 3004
1.33
Resolution horizontal: X × r = 3004 × 1.33 = 3995
Resolution vertical: X = 3004

Sensor resolution = 3995 x 3004

A1030 sensor resolution

Sensor width = 7.53 mm
Sensor height = 5.64 mm
Effective megapixels = 10.10
r = 7.53/5.64 = 1.34
X =  10.10 × 1000000  = 2745
1.34
Resolution horizontal: X × r = 2745 × 1.34 = 3678
Resolution vertical: X = 2745

Sensor resolution = 3678 x 2745


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


Optima 103 crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

A1030 crop factor

Sensor diagonal in mm = 9.41 mm
Crop factor =   43.27  = 4.6
9.41

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).

Optima 103 equivalent aperture

Crop factor = 5.62
Aperture = f2.8 - f6.3

35-mm equivalent aperture = (f2.8 - f6.3) × 5.62 = f15.7 - f35.4

A1030 equivalent aperture

Crop factor = 4.6
Aperture = f2.8 - f4.9

35-mm equivalent aperture = (f2.8 - f4.9) × 4.6 = f12.9 - f22.5

More comparisons of AgfaPhoto Optima 103:

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