Konica-Minolta Dynax 5D vs. Sony Alpha DSLR-A700

Comparison

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Dynax 5D image
vs
Alpha DSLR-A700 image
Konica-Minolta Dynax 5D Sony Alpha DSLR-A700
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Megapixels
6.30
12.20
Max. image resolution
3008 x 2000
4272 x 2848

Sensor

Sensor type
CCD
CMOS
Sensor size
23.5 x 15.7 mm
23.5 x 15.6 mm
Sensor resolution
3074 x 2049
4291 x 2842
Diagonal
28.26 mm
28.21 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
1.01 : 1
(ratio)
Konica-Minolta Dynax 5D Sony Alpha DSLR-A700
Surface area:
368.95 mm² vs 366.60 mm²
Difference: 2.35 mm² (0.6%)
Dynax 5D sensor is slightly bigger than Alpha DSLR-A700 sensor (only 0.6% difference).
Note: You are comparing cameras of different generations. There is a 2 year gap between Konica-Minolta Dynax 5D (2005) and Sony Alpha DSLR-A700 (2007). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
7.64 µm
5.48 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: 2.16 µm (39%)
Pixel pitch of Dynax 5D is approx. 39% higher than pixel pitch of Alpha DSLR-A700.
Pixel area
58.37 µm²
30.03 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: 28.34 µm² (94%)
A pixel on Konica-Minolta Dynax 5D sensor is approx. 94% bigger than a pixel on Sony Alpha DSLR-A700.
Pixel density
1.71 MP/cm²
3.33 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: 1.62 µm (95%)
Sony Alpha DSLR-A700 has approx. 95% higher pixel density than Konica-Minolta Dynax 5D.
To learn about the accuracy of these numbers, click here.



Specs

Konica-Minolta Dynax 5D
Sony Alpha DSLR-A700
Crop factor
1.53
1.53
Total megapixels
13.00
Effective megapixels
12.20
Optical zoom
Digital zoom
No
No
ISO sensitivity
100, 200, 400, 800, 1600, 3200
Auto, 100, 200, 400, 800, 1600, (up to 6400)
RAW
Manual focus
Normal focus range
Macro focus range
Focal length (35mm equiv.)
Aperture priority
Yes
Yes
Max. aperture
Max. aperture (35mm equiv.)
n/a
n/a
Metering
Centre weighted, Multi-segment, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±3 EV (in 1/3 EV, 1/2 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
Bulb+30 sec
30 sec
Max. shutter speed
1/4000 sec
1/8000 sec
Built-in flash
External flash
Viewfinder
Optical
Optical (pentaprism)
White balance presets
7
7
Screen size
2.5"
3"
Screen resolution
115,000 dots
920,000 dots
Video capture
Max. video resolution
Storage types
CompactFlash type I, CompactFlash type II, Microdrive
Compact Flash (Type I or II), Memory Stick Duo / Pro Duo
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Li-Ion
Lithium-Ion (NP-FM500H)
Weight
590 g
768 g
Dimensions
130.5 x 92.5 x 66.5 mm
142 x 105 x 80 mm
Year
2005
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

Konica-Minolta Dynax 5D diagonal

w = 23.50 mm
h = 15.70 mm
Diagonal =  23.50² + 15.70²   = 28.26 mm

Sony Alpha DSLR-A700 diagonal

w = 23.50 mm
h = 15.60 mm
Diagonal =  23.50² + 15.60²   = 28.21 mm


Surface area

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

Dynax 5D sensor area

Width = 23.50 mm
Height = 15.70 mm

Surface area = 23.50 × 15.70 = 368.95 mm²

Alpha DSLR-A700 sensor area

Width = 23.50 mm
Height = 15.60 mm

Surface area = 23.50 × 15.60 = 366.60 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

Dynax 5D pixel pitch

Sensor width = 23.50 mm
Sensor resolution width = 3074 pixels
Pixel pitch =   23.50  × 1000  = 7.64 µm
3074

Alpha DSLR-A700 pixel pitch

Sensor width = 23.50 mm
Sensor resolution width = 4291 pixels
Pixel pitch =   23.50  × 1000  = 5.48 µm
4291


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

Dynax 5D pixel area

Pixel pitch = 7.64 µm

Pixel area = 7.64² = 58.37 µm²

Alpha DSLR-A700 pixel area

Pixel pitch = 5.48 µm

Pixel area = 5.48² = 30.03 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

Dynax 5D pixel density

Sensor resolution width = 3074 pixels
Sensor width = 2.35 cm

Pixel density = (3074 / 2.35)² / 1000000 = 1.71 MP/cm²

Alpha DSLR-A700 pixel density

Sensor resolution width = 4291 pixels
Sensor width = 2.35 cm

Pixel density = (4291 / 2.35)² / 1000000 = 3.33 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

Dynax 5D sensor resolution

Sensor width = 23.50 mm
Sensor height = 15.70 mm
Effective megapixels = 6.30
r = 23.50/15.70 = 1.5
X =  6.30 × 1000000  = 2049
1.5
Resolution horizontal: X × r = 2049 × 1.5 = 3074
Resolution vertical: X = 2049

Sensor resolution = 3074 x 2049

Alpha DSLR-A700 sensor resolution

Sensor width = 23.50 mm
Sensor height = 15.60 mm
Effective megapixels = 12.20
r = 23.50/15.60 = 1.51
X =  12.20 × 1000000  = 2842
1.51
Resolution horizontal: X × r = 2842 × 1.51 = 4291
Resolution vertical: X = 2842

Sensor resolution = 4291 x 2842


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


Dynax 5D crop factor

Sensor diagonal in mm = 28.26 mm
Crop factor =   43.27  = 1.53
28.26

Alpha DSLR-A700 crop factor

Sensor diagonal in mm = 28.21 mm
Crop factor =   43.27  = 1.53
28.21

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).

Dynax 5D equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Konica-Minolta Dynax 5D, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Konica-Minolta Dynax 5D is 1.53

Alpha DSLR-A700 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Sony Alpha DSLR-A700, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Sony Alpha DSLR-A700 is 1.53

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