Fujifilm FinePix A820 vs. Fujifilm FinePix A800
Comparison
change cameras » | |||||
|
vs |
|
|||
Fujifilm FinePix A820 | Fujifilm FinePix A800 | ||||
check price » | check price » |
Megapixels
8.10
8.10
Max. image resolution
3296 x 2472
3296 x 2472
Sensor
Sensor type
CCD
CCD
Sensor size
1/1.6" (~ 8 x 6 mm)
1/1.6" (~ 8 x 6 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 »
|
vs |
|
1 | : | 1 |
(ratio) | ||
Fujifilm FinePix A820 | Fujifilm FinePix A800 |
Surface area:
48.00 mm² | vs | 48.00 mm² |
Difference: 0 mm² (0%)
A820 and A800 sensors are the same size.
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: 0 µm² (0%)
Fujifilm A820 and Fujifilm A800 have the same pixel area.
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
Fujifilm A820
Fujifilm A800
Total megapixels
8.30
8.30
Effective megapixels
8.10
8.10
Optical zoom
4x
3x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400, 800
Auto, 100, 200, 400, 800
RAW
Manual focus
Normal focus range
60 cm
50 cm
Macro focus range
10 cm
10 cm
Focal length (35mm equiv.)
39 - 156 mm
36 - 108 mm
Aperture priority
No
No
Max. aperture
f3.9 - f6.3
f2.8 - f5.2
Metering
256-segment Matrix
256-segment Matrix
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
No
Min. shutter speed
4 sec
4 sec
Max. shutter speed
1/1200 sec
1/1600 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
6
6
Screen size
2.5"
2.5"
Screen resolution
115,000 dots
115,000 dots
Video capture
Max. video resolution
Storage types
Secure Digital, xD Picture card
xD Picture card
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA (2) batteries (NiMH recommended)
AA (2) batteries (NiMH recommended)
Weight
205 g
151 g
Dimensions
98 x 62 x 32 mm
97.5 x 61.9 x 31.0 mm
Year
2007
2007
Choose cameras to compare
Popular comparisons:
- Fujifilm FinePix A820 vs. Fujifilm FinePix A825
- Fujifilm FinePix A820 vs. Canon PowerShot A3400 IS
- Fujifilm FinePix A820 vs. Fujifilm FinePix A900
- Fujifilm FinePix A820 vs. Fujifilm FinePix A800
- Fujifilm FinePix A820 vs. Canon PowerShot A95
- Fujifilm FinePix A820 vs. Nikon Coolpix S6300
- Fujifilm FinePix A820 vs. Nikon Coolpix P520
- Fujifilm FinePix A820 vs. Sony Cyber-shot DSC-W830
- Fujifilm FinePix A820 vs. Fujifilm X20
- Fujifilm FinePix A820 vs. Fujifilm FinePix F20 Zoom
- Fujifilm FinePix A820 vs. Canon PowerShot A80
Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
Diagonal = √ | w² + h² |
Fujifilm A820 diagonal
The diagonal of A820 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
w = 8.00 mm
h = 6.00 mm
Diagonal = √ | 8.00² + 6.00² | = 10.00 mm |
Fujifilm A800 diagonal
The diagonal of A800 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
w = 8.00 mm
h = 6.00 mm
Diagonal = √ | 8.00² + 6.00² | = 10.00 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
A820 sensor area
Width = 8.00 mm
Height = 6.00 mm
Surface area = 8.00 × 6.00 = 48.00 mm²
Height = 6.00 mm
Surface area = 8.00 × 6.00 = 48.00 mm²
A800 sensor area
Width = 8.00 mm
Height = 6.00 mm
Surface area = 8.00 × 6.00 = 48.00 mm²
Height = 6.00 mm
Surface area = 8.00 × 6.00 = 48.00 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 |
A820 pixel pitch
Sensor width = 8.00 mm
Sensor resolution width = 3282 pixels
Sensor resolution width = 3282 pixels
Pixel pitch = | 8.00 | × 1000 | = 2.44 µm |
3282 |
A800 pixel pitch
Sensor width = 8.00 mm
Sensor resolution width = 3282 pixels
Sensor resolution width = 3282 pixels
Pixel pitch = | 8.00 | × 1000 | = 2.44 µm |
3282 |
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 |
A820 pixel area
Pixel pitch = 2.44 µm
Pixel area = 2.44² = 5.95 µm²
Pixel area = 2.44² = 5.95 µm²
A800 pixel area
Pixel pitch = 2.44 µm
Pixel area = 2.44² = 5.95 µm²
Pixel area = 2.44² = 5.95 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 |
A820 pixel density
Sensor resolution width = 3282 pixels
Sensor width = 0.8 cm
Pixel density = (3282 / 0.8)² / 1000000 = 16.83 MP/cm²
Sensor width = 0.8 cm
Pixel density = (3282 / 0.8)² / 1000000 = 16.83 MP/cm²
A800 pixel density
Sensor resolution width = 3282 pixels
Sensor width = 0.8 cm
Pixel density = (3282 / 0.8)² / 1000000 = 16.83 MP/cm²
Sensor width = 0.8 cm
Pixel density = (3282 / 0.8)² / 1000000 = 16.83 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 → |
|
Resolution horizontal: X × r
Resolution vertical: X
A820 sensor resolution
Sensor width = 8.00 mm
Sensor height = 6.00 mm
Effective megapixels = 8.10
Resolution horizontal: X × r = 2468 × 1.33 = 3282
Resolution vertical: X = 2468
Sensor resolution = 3282 x 2468
Sensor height = 6.00 mm
Effective megapixels = 8.10
r = 8.00/6.00 = 1.33 |
|
Resolution vertical: X = 2468
Sensor resolution = 3282 x 2468
A800 sensor resolution
Sensor width = 8.00 mm
Sensor height = 6.00 mm
Effective megapixels = 8.10
Resolution horizontal: X × r = 2468 × 1.33 = 3282
Resolution vertical: X = 2468
Sensor resolution = 3282 x 2468
Sensor height = 6.00 mm
Effective megapixels = 8.10
r = 8.00/6.00 = 1.33 |
|
Resolution vertical: X = 2468
Sensor resolution = 3282 x 2468
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 |
A820 crop factor
Sensor diagonal in mm = 10.00 mm
Crop factor = | 43.27 | = 4.33 |
10.00 |
A800 crop factor
Sensor diagonal in mm = 10.00 mm
Crop factor = | 43.27 | = 4.33 |
10.00 |
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).
A820 equivalent aperture
Crop factor = 4.33
Aperture = f3.9 - f6.3
35-mm equivalent aperture = (f3.9 - f6.3) × 4.33 = f16.9 - f27.3
Aperture = f3.9 - f6.3
35-mm equivalent aperture = (f3.9 - f6.3) × 4.33 = f16.9 - f27.3
A800 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
Aperture = f2.8 - f5.2
35-mm equivalent aperture = (f2.8 - f5.2) × 4.33 = f12.1 - f22.5
More comparisons of Fujifilm A820:
- Fujifilm FinePix A820 vs. Canon PowerShot G5
- Fujifilm FinePix A820 vs. Canon PowerShot A610
- Fujifilm FinePix A820 vs. Fujifilm FinePix F45fd
- Fujifilm FinePix A820 vs. Fujifilm FinePix AX650
- Fujifilm FinePix A820 vs. Canon PowerShot A800
- Fujifilm FinePix A820 vs. Fujifilm FinePix S2980
- Fujifilm FinePix A820 vs. Olympus SP 320
- Fujifilm FinePix A820 vs. Fujifilm FinePix F47fd
- Fujifilm FinePix A820 vs. Olympus C-5050 Zoom
- Fujifilm FinePix A820 vs. Fujifilm FinePix F100fd
Enter your screen size (diagonal)
My screen size is
inches
Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.