AgfaPhoto Optima 1438m vs. Kodak DC290

Comparison

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Optima 1438m image
vs
DC290 image
AgfaPhoto Optima 1438m Kodak DC290
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Megapixels
10.00
2.20
Max. image resolution
3648 x 2736
2240 x 1500

Sensor

Sensor type
CCD
CCD
Sensor size
1/2.33" (~ 6.08 x 4.56 mm)
1/1.76" (~ 7.27 x 5.46 mm)
Sensor resolution
3647 x 2742
1710 x 1286
Diagonal
7.60 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 : 1.43
(ratio)
AgfaPhoto Optima 1438m Kodak DC290
Surface area:
27.72 mm² vs 39.69 mm²
Difference: 11.97 mm² (43%)
DC290 sensor is approx. 1.43x bigger than Optima 1438m sensor.
Note: You are comparing sensors of very different generations. There is a gap of 10 years between AgfaPhoto Optima 1438m (2009) and Kodak DC290 (1999). Ten years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.
Pixel pitch
1.67 µm
4.25 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: 2.58 µm (154%)
Pixel pitch of DC290 is approx. 154% higher than pixel pitch of Optima 1438m.
Pixel area
2.79 µm²
18.06 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: 15.27 µm² (547%)
A pixel on Kodak DC290 sensor is approx. 547% bigger than a pixel on AgfaPhoto Optima 1438m.
Pixel density
35.98 MP/cm²
5.53 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: 30.45 µm (551%)
AgfaPhoto Optima 1438m has approx. 551% higher pixel density than Kodak DC290.
To learn about the accuracy of these numbers, click here.



Specs

AgfaPhoto Optima 1438m
Kodak DC290
Crop factor
5.69
4.76
Total megapixels
2.30
Effective megapixels
2.20
Optical zoom
Yes
3x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400, 800, 1600
100
RAW
Manual focus
Normal focus range
30 cm
30 cm
Macro focus range
30 cm
20 cm
Focal length (35mm equiv.)
32 - 128 mm
38 - 115 mm
Aperture priority
No
No
Max. aperture
f3.1 - f5.6
f3 - f4.7
Max. aperture (35mm equiv.)
f17.6 - f31.9
f14.3 - f22.4
Metering
Centre weighted, Multi-segment, Spot
Centre weighted, Multi-segment
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/2 EV steps)
Shutter priority
No
No
Min. shutter speed
16 sec
Max. shutter speed
1/1500 sec
1/400 sec
Built-in flash
External flash
Viewfinder
None
Optical (tunnel)
White balance presets
6
4
Screen size
3"
2"
Screen resolution
230,400 dots
72,000 dots
Video capture
Max. video resolution
Storage types
SDHC, Secure Digital
CompactFlash type I
USB
USB 2.0 (480 Mbit/sec)
USB 1.0
HDMI
Wireless
GPS
Battery
AA NiMH (4) batteries included
Weight
130 g
550 g
Dimensions
95 x 57 x 22.7 mm
118 x 57 x 106 mm
Year
2009
1999




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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 1438m diagonal

The diagonal of Optima 1438m sensor is not 1/2.33 or 0.43" (10.9 mm) as you might expect, but approximately two thirds of that value - 7.6 mm. If you want to know why, see sensor sizes.

w = 6.08 mm
h = 4.56 mm
Diagonal =  6.08² + 4.56²   = 7.60 mm

Kodak DC290 diagonal

The diagonal of DC290 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.

Optima 1438m sensor area

Width = 6.08 mm
Height = 4.56 mm

Surface area = 6.08 × 4.56 = 27.72 mm²

DC290 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

Optima 1438m pixel pitch

Sensor width = 6.08 mm
Sensor resolution width = 3647 pixels
Pixel pitch =   6.08  × 1000  = 1.67 µm
3647

DC290 pixel pitch

Sensor width = 7.27 mm
Sensor resolution width = 1710 pixels
Pixel pitch =   7.27  × 1000  = 4.25 µm
1710


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 1438m pixel area

Pixel pitch = 1.67 µm

Pixel area = 1.67² = 2.79 µm²

DC290 pixel area

Pixel pitch = 4.25 µm

Pixel area = 4.25² = 18.06 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 1438m pixel density

Sensor resolution width = 3647 pixels
Sensor width = 0.608 cm

Pixel density = (3647 / 0.608)² / 1000000 = 35.98 MP/cm²

DC290 pixel density

Sensor resolution width = 1710 pixels
Sensor width = 0.727 cm

Pixel density = (1710 / 0.727)² / 1000000 = 5.53 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 1438m sensor resolution

Sensor width = 6.08 mm
Sensor height = 4.56 mm
Effective megapixels = 10.00
r = 6.08/4.56 = 1.33
X =  10.00 × 1000000  = 2742
1.33
Resolution horizontal: X × r = 2742 × 1.33 = 3647
Resolution vertical: X = 2742

Sensor resolution = 3647 x 2742

DC290 sensor resolution

Sensor width = 7.27 mm
Sensor height = 5.46 mm
Effective megapixels = 2.20
r = 7.27/5.46 = 1.33
X =  2.20 × 1000000  = 1286
1.33
Resolution horizontal: X × r = 1286 × 1.33 = 1710
Resolution vertical: X = 1286

Sensor resolution = 1710 x 1286


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 1438m crop factor

Sensor diagonal in mm = 7.60 mm
Crop factor =   43.27  = 5.69
7.60

DC290 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).

Optima 1438m equivalent aperture

Crop factor = 5.69
Aperture = f3.1 - f5.6

35-mm equivalent aperture = (f3.1 - f5.6) × 5.69 = f17.6 - f31.9

DC290 equivalent aperture

Crop factor = 4.76
Aperture = f3 - f4.7

35-mm equivalent aperture = (f3 - f4.7) × 4.76 = f14.3 - f22.4

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