Fujifilm FinePix A700 vs. Minolta DiMAGE A1

Comparison

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FinePix A700 image
vs
DiMAGE A1 image
Fujifilm FinePix A700 Minolta DiMAGE A1
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Megapixels
7.30
5.30
Max. image resolution
3072 x 2304
2560 x 1920

Sensor

Sensor type
CCD
CCD
Sensor size
1/1.6" (~ 8 x 6 mm)
2/3" (~ 8.8 x 6.6 mm)
Sensor resolution
3116 x 2343
2655 x 1996
Diagonal
10.00 mm
11.00 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 : 1.21
(ratio)
Fujifilm FinePix A700 Minolta DiMAGE A1
Surface area:
48.00 mm² vs 58.08 mm²
Difference: 10.08 mm² (21%)
DiMAGE A1 sensor is approx. 1.21x bigger than A700 sensor.
Note: You are comparing cameras of different generations. There is a 3 year gap between Fujifilm A700 (2006) and Minolta DiMAGE A1 (2003). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
2.57 µm
3.31 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: 0.74 µm (29%)
Pixel pitch of DiMAGE A1 is approx. 29% higher than pixel pitch of A700.
Pixel area
6.6 µm²
10.96 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: 4.36 µm² (66%)
A pixel on Minolta DiMAGE A1 sensor is approx. 66% bigger than a pixel on Fujifilm A700.
Pixel density
15.17 MP/cm²
9.1 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: 6.07 µm (67%)
Fujifilm A700 has approx. 67% higher pixel density than Minolta DiMAGE A1.
To learn about the accuracy of these numbers, click here.



Specs

Fujifilm A700
Minolta DiMAGE A1
Crop factor
4.33
3.93
Total megapixels
Effective megapixels
Optical zoom
Yes
7.1x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400
Auto, 100, 200, 400, 800
RAW
Manual focus
Normal focus range
50 cm
50 cm
Macro focus range
10 cm
13 cm
Focal length (35mm equiv.)
36 - 108 mm
28 - 200 mm
Aperture priority
No
Yes
Max. aperture
f2.8 - f5.2
f2.8 - f3.5
Max. aperture (35mm equiv.)
f12.1 - f22.5
f11 - f13.8
Metering
Centre weighted
Centre weighted, Multi-segment, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
Yes
Min. shutter speed
2 sec
30 sec
Max. shutter speed
1/1600 sec
1/16000 sec
Built-in flash
External flash
Viewfinder
None
Electronic
White balance presets
6
7
Screen size
2.4"
1.8"
Screen resolution
112,000 dots
118,000 dots
Video capture
Max. video resolution
Storage types
xD Picture card
CompactFlash type I, CompactFlash type II, Microdrive
USB
USB 2.0 (480 Mbit/sec)
USB 1.0
HDMI
Wireless
GPS
Battery
2x AA
AA (4) batteries (NiMH recommended)
Weight
139 g
560 g
Dimensions
94 x 61 x 30.5 mm
117 x 85 x 113.5 mm
Year
2006
2003




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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

Fujifilm A700 diagonal

The diagonal of A700 sensor is not 1/1.6 or 0.63" (15.9 mm) as you might expect, but approximately two thirds of that value - 10 mm. If you want to know why, see sensor sizes.

w = 8.00 mm
h = 6.00 mm
Diagonal =  8.00² + 6.00²   = 10.00 mm

Minolta DiMAGE A1 diagonal

The diagonal of DiMAGE A1 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


Surface area

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

A700 sensor area

Width = 8.00 mm
Height = 6.00 mm

Surface area = 8.00 × 6.00 = 48.00 mm²

DiMAGE A1 sensor area

Width = 8.80 mm
Height = 6.60 mm

Surface area = 8.80 × 6.60 = 58.08 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

A700 pixel pitch

Sensor width = 8.00 mm
Sensor resolution width = 3116 pixels
Pixel pitch =   8.00  × 1000  = 2.57 µm
3116

DiMAGE A1 pixel pitch

Sensor width = 8.80 mm
Sensor resolution width = 2655 pixels
Pixel pitch =   8.80  × 1000  = 3.31 µm
2655


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

A700 pixel area

Pixel pitch = 2.57 µm

Pixel area = 2.57² = 6.6 µm²

DiMAGE A1 pixel area

Pixel pitch = 3.31 µm

Pixel area = 3.31² = 10.96 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

A700 pixel density

Sensor resolution width = 3116 pixels
Sensor width = 0.8 cm

Pixel density = (3116 / 0.8)² / 1000000 = 15.17 MP/cm²

DiMAGE A1 pixel density

Sensor resolution width = 2655 pixels
Sensor width = 0.88 cm

Pixel density = (2655 / 0.88)² / 1000000 = 9.1 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

A700 sensor resolution

Sensor width = 8.00 mm
Sensor height = 6.00 mm
Effective megapixels = 7.30
r = 8.00/6.00 = 1.33
X =  7.30 × 1000000  = 2343
1.33
Resolution horizontal: X × r = 2343 × 1.33 = 3116
Resolution vertical: X = 2343

Sensor resolution = 3116 x 2343

DiMAGE A1 sensor resolution

Sensor width = 8.80 mm
Sensor height = 6.60 mm
Effective megapixels = 5.30
r = 8.80/6.60 = 1.33
X =  5.30 × 1000000  = 1996
1.33
Resolution horizontal: X × r = 1996 × 1.33 = 2655
Resolution vertical: X = 1996

Sensor resolution = 2655 x 1996


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


A700 crop factor

Sensor diagonal in mm = 10.00 mm
Crop factor =   43.27  = 4.33
10.00

DiMAGE A1 crop factor

Sensor diagonal in mm = 11.00 mm
Crop factor =   43.27  = 3.93
11.00

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).

A700 equivalent aperture

Crop factor = 4.33
Aperture = f2.8 - f5.2

35-mm equivalent aperture = (f2.8 - f5.2) × 4.33 = f12.1 - f22.5

DiMAGE A1 equivalent aperture

Crop factor = 3.93
Aperture = f2.8 - f3.5

35-mm equivalent aperture = (f2.8 - f3.5) × 3.93 = f11 - f13.8

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