Sony a1 vs. Konica-Minolta Dynax 5D

Comparison

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a1 image
vs
Dynax 5D image
Sony a1 Konica-Minolta Dynax 5D
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Megapixels
50.10
6.30
Max. image resolution
8640 x 5760
3008 x 2000

Sensor

Sensor type
CMOS
CCD
Sensor size
35.9 x 24 mm
23.5 x 15.7 mm
Sensor resolution
8669 x 5779
3074 x 2049
Diagonal
43.18 mm
28.26 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
2.34 : 1
(ratio)
Sony a1 Konica-Minolta Dynax 5D
Surface area:
861.60 mm² vs 368.95 mm²
Difference: 492.65 mm² (134%)
a1 sensor is approx. 2.34x bigger than Dynax 5D sensor.
Note: You are comparing sensors of vastly different generations. There is a gap of 16 years between Sony a1 (2021) and Konica-Minolta Dynax 5D (2005). Sixteen years is a huge amount of time, technology wise, resulting in newer sensor being much more efficient than the older one.
Pixel pitch
4.14 µm
7.64 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: 3.5 µm (85%)
Pixel pitch of Dynax 5D is approx. 85% higher than pixel pitch of a1.
Pixel area
17.14 µm²
58.37 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: 41.23 µm² (241%)
A pixel on Konica-Minolta Dynax 5D sensor is approx. 241% bigger than a pixel on Sony a1.
Pixel density
5.83 MP/cm²
1.71 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: 4.12 µm (241%)
Sony a1 has approx. 241% higher pixel density than Konica-Minolta Dynax 5D.
To learn about the accuracy of these numbers, click here.



Specs

Sony a1
Konica-Minolta Dynax 5D
Crop factor
1
1.53
Total megapixels
50.50
Effective megapixels
50.10
Optical zoom
 
Digital zoom
Yes
No
ISO sensitivity
Auto, 100-32000 (extends to 50-102400)
100, 200, 400, 800, 1600, 3200
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
Multi, Center-weighted, Highlight-weighted, Average, Spot
Centre weighted, Multi-segment, Spot
Exposure compensation
±5 EV (in 1/3 EV, 1/2 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
30 sec
Bulb+30 sec
Max. shutter speed
1/32000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Electronic
Optical
White balance presets
7
7
Screen size
3"
2.5"
Screen resolution
1,440,000 dots
115,000 dots
Video capture
Max. video resolution
7680x4320 (30p/​25p/​24p)
Storage types
SD/SDHC/SDXC, CFexpress
CompactFlash type I, CompactFlash type II, Microdrive
USB
USB 3.0 (5 GBit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
NP-FZ100 lithium-ion battery
Li-Ion
Weight
737 g
590 g
Dimensions
128.9 x 96.9 x 80.8 mm
130.5 x 92.5 x 66.5 mm
Year
2021
2005




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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

Sony a1 diagonal

w = 35.90 mm
h = 24.00 mm
Diagonal =  35.90² + 24.00²   = 43.18 mm

Konica-Minolta Dynax 5D diagonal

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


Surface area

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

a1 sensor area

Width = 35.90 mm
Height = 24.00 mm

Surface area = 35.90 × 24.00 = 861.60 mm²

Dynax 5D sensor area

Width = 23.50 mm
Height = 15.70 mm

Surface area = 23.50 × 15.70 = 368.95 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

a1 pixel pitch

Sensor width = 35.90 mm
Sensor resolution width = 8669 pixels
Pixel pitch =   35.90  × 1000  = 4.14 µm
8669

Dynax 5D pixel pitch

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


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

a1 pixel area

Pixel pitch = 4.14 µm

Pixel area = 4.14² = 17.14 µm²

Dynax 5D pixel area

Pixel pitch = 7.64 µm

Pixel area = 7.64² = 58.37 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

a1 pixel density

Sensor resolution width = 8669 pixels
Sensor width = 3.59 cm

Pixel density = (8669 / 3.59)² / 1000000 = 5.83 MP/cm²

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


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

a1 sensor resolution

Sensor width = 35.90 mm
Sensor height = 24.00 mm
Effective megapixels = 50.10
r = 35.90/24.00 = 1.5
X =  50.10 × 1000000  = 5779
1.5
Resolution horizontal: X × r = 5779 × 1.5 = 8669
Resolution vertical: X = 5779

Sensor resolution = 8669 x 5779

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


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


a1 crop factor

Sensor diagonal in mm = 43.18 mm
Crop factor =   43.27  = 1
43.18

Dynax 5D crop factor

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

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).

a1 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 a1, take the aperture of the lens you're using and multiply it with crop factor.

Since crop factor for Sony a1 is 1, the equivalent aperture is aperture.

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

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