Minolta DiMAGE A1 vs. Nikon Coolpix P500
Comparison
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Minolta DiMAGE A1 | Nikon Coolpix P500 | ||||
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Megapixels
5.30
12.00
Max. image resolution
2560 x 1920
4000 x 3000
Sensor
Sensor type
CCD
CMOS
Sensor size
2/3" (~ 8.8 x 6.6 mm)
1/2.3" (~ 6.16 x 4.62 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 »
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 »
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2.04 | : | 1 |
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Minolta DiMAGE A1 | Nikon Coolpix P500 |
Surface area:
58.08 mm² | vs | 28.46 mm² |
Difference: 29.62 mm² (104%)
DiMAGE A1 sensor is approx. 2.04x bigger than P500 sensor.
Note: You are comparing sensors of very different generations.
There is a gap of 8 years between Minolta DiMAGE A1 (2003) and Nikon P500 (2011).
Eight years is a lot of time in terms
of technology, meaning newer sensors are overall much more
efficient than the older ones.
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.
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.
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.
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: 8.59 µm² (362%)
A pixel on Minolta DiMAGE A1 sensor is approx. 362% bigger than a pixel on Nikon P500.
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.
Higher pixel density means smaller pixels and lower pixel density means larger pixels.
To learn about the accuracy of these numbers,
click here.
Specs
Minolta DiMAGE A1
Nikon P500
Total megapixels
12.70
Effective megapixels
12.00
Optical zoom
7.1x
36x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400, 800
Auto, 160 - 3200
RAW
Manual focus
Normal focus range
50 cm
50 cm
Macro focus range
13 cm
1 cm
Focal length (35mm equiv.)
28 - 200 mm
23 - 810 mm
Aperture priority
Yes
Yes
Max. aperture
f2.8 - f3.5
f3.4 - f5.7
Metering
Centre weighted, Multi-segment, Spot
Multi, Center-weighted, Spot, Spot AF-area
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
30 sec
8 sec
Max. shutter speed
1/16000 sec
1/1500 sec
Built-in flash
External flash
Viewfinder
Electronic
Electronic
White balance presets
7
5
Screen size
1.8"
3"
Screen resolution
118,000 dots
921,000 dots
Video capture
Max. video resolution
Storage types
CompactFlash type I, CompactFlash type II, Microdrive
SDHC, SDXC, Secure Digital
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA (4) batteries (NiMH recommended)
Nikon EN-EL5 Lithium-Ion battery
Weight
560 g
494 g
Dimensions
117 x 85 x 113.5 mm
115.5 x 83.7 x 102.5 mm
Year
2003
2011
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Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
Diagonal = √ | w² + h² |
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
w = 8.80 mm
h = 6.60 mm
Diagonal = √ | 8.80² + 6.60² | = 11.00 mm |
Nikon P500 diagonal
The diagonal of P500 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
w = 6.16 mm
h = 4.62 mm
Diagonal = √ | 6.16² + 4.62² | = 7.70 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
DiMAGE A1 sensor area
Width = 8.80 mm
Height = 6.60 mm
Surface area = 8.80 × 6.60 = 58.08 mm²
Height = 6.60 mm
Surface area = 8.80 × 6.60 = 58.08 mm²
P500 sensor area
Width = 6.16 mm
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 mm²
Height = 4.62 mm
Surface area = 6.16 × 4.62 = 28.46 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 |
DiMAGE A1 pixel pitch
Sensor width = 8.80 mm
Sensor resolution width = 2655 pixels
Sensor resolution width = 2655 pixels
Pixel pitch = | 8.80 | × 1000 | = 3.31 µm |
2655 |
P500 pixel pitch
Sensor width = 6.16 mm
Sensor resolution width = 3995 pixels
Sensor resolution width = 3995 pixels
Pixel pitch = | 6.16 | × 1000 | = 1.54 µm |
3995 |
Pixel area
The area of one pixel can be calculated by simply squaring the pixel pitch:
You could also divide sensor surface area with effective megapixels:
Pixel area = pixel pitch²
You could also divide sensor surface area with effective megapixels:
Pixel area = | sensor surface area in mm² |
effective megapixels |
DiMAGE A1 pixel area
Pixel pitch = 3.31 µm
Pixel area = 3.31² = 10.96 µm²
Pixel area = 3.31² = 10.96 µm²
P500 pixel area
Pixel pitch = 1.54 µm
Pixel area = 1.54² = 2.37 µm²
Pixel area = 1.54² = 2.37 µm²
Pixel density
Pixel density can be calculated with the following formula:
One could also use this 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 |
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 width = 0.88 cm
Pixel density = (2655 / 0.88)² / 1000000 = 9.1 MP/cm²
P500 pixel density
Sensor resolution width = 3995 pixels
Sensor width = 0.616 cm
Pixel density = (3995 / 0.616)² / 1000000 = 42.06 MP/cm²
Sensor width = 0.616 cm
Pixel density = (3995 / 0.616)² / 1000000 = 42.06 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:
3. To get sensor resolution we then multiply X with the corresponding ratio:
Resolution horizontal: X × r
Resolution vertical: X
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 → |
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Resolution horizontal: X × r
Resolution vertical: X
DiMAGE A1 sensor resolution
Sensor width = 8.80 mm
Sensor height = 6.60 mm
Effective megapixels = 5.30
Resolution horizontal: X × r = 1996 × 1.33 = 2655
Resolution vertical: X = 1996
Sensor resolution = 2655 x 1996
Sensor height = 6.60 mm
Effective megapixels = 5.30
r = 8.80/6.60 = 1.33 |
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Resolution vertical: X = 1996
Sensor resolution = 2655 x 1996
P500 sensor resolution
Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 12.00
Resolution horizontal: X × r = 3004 × 1.33 = 3995
Resolution vertical: X = 3004
Sensor resolution = 3995 x 3004
Sensor height = 4.62 mm
Effective megapixels = 12.00
r = 6.16/4.62 = 1.33 |
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Resolution vertical: X = 3004
Sensor resolution = 3995 x 3004
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 |
DiMAGE A1 crop factor
Sensor diagonal in mm = 11.00 mm
Crop factor = | 43.27 | = 3.93 |
11.00 |
P500 crop factor
Sensor diagonal in mm = 7.70 mm
Crop factor = | 43.27 | = 5.62 |
7.70 |
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).
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
Aperture = f2.8 - f3.5
35-mm equivalent aperture = (f2.8 - f3.5) × 3.93 = f11 - f13.8
P500 equivalent aperture
Crop factor = 5.62
Aperture = f3.4 - f5.7
35-mm equivalent aperture = (f3.4 - f5.7) × 5.62 = f19.1 - f32
Aperture = f3.4 - f5.7
35-mm equivalent aperture = (f3.4 - f5.7) × 5.62 = f19.1 - f32
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