Sony Mavica FD-92 vs. Sony Alpha 7R II
Comparison
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| Sony Mavica FD-92 | Sony Alpha 7R II | ||||
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Megapixels
1.20
42.40
Max. image resolution
1472 x 1104
7952 x 5304
Sensor
Sensor type
CCD
CMOS
Sensor size
1/2.7" (~ 5.33 x 4 mm)
35.9 x 24 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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| 1 | : | 40.41 |
| (ratio) | ||
| Sony Mavica FD-92 | Sony Alpha 7R II | |
Surface area:
| 21.32 mm² | vs | 861.60 mm² |
Difference: 840.28 mm² (3941%)
Alpha 7R II sensor is approx. 40.41x bigger than Mavica FD-92 sensor.
Note: You are comparing sensors of vastly different generations.
There is a gap of 14 years between Sony Mavica FD-92 (2001) and
Sony Alpha 7R II (2015).
Fourteen years is a huge amount of time,
technology wise, resulting in newer sensor being much more
efficient than the older one.
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: 2.44 µm² (14%)
A pixel on Sony Alpha 7R II sensor is approx. 14% bigger than a pixel on Sony Mavica FD-92.
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
Sony Mavica FD-92
Sony Alpha 7R II
Total megapixels
1.30
43.60
Effective megapixels
1.20
42.40
Optical zoom
8x
Digital zoom
Yes
Yes
ISO sensitivity
100
Auto, 100-25600 (expandable to 50-102400)
RAW
Manual focus
Normal focus range
25 cm
Macro focus range
3 cm
Focal length (35mm equiv.)
41 - 328 mm
Aperture priority
Yes
Yes
Max. aperture
f1.8 - f2.9
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±5 EV (in 1/3 EV, 1/2 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
2 sec
30 sec
Max. shutter speed
1/500 sec
1/8000 sec
Built-in flash
External flash
Viewfinder
None
Electronic
White balance presets
4
10
Screen size
2.5"
3"
Screen resolution
123,000 dots
1,228,800 dots
Video capture
Max. video resolution
3840x2160 (30p/25p/24p)
Storage types
Disk 3.5" (2x speed) or MemoryStick (slot)
SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
InfoLithium (NP-F330)
Rechargeable battery NP-FW50
Weight
660 g
625 g
Dimensions
126 x 125 x 184 mm
126.9 x 95.7 x 60.3 mm
Year
2001
2015
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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 |
Sony Mavica FD-92 diagonal
The diagonal of Mavica FD-92 sensor is not 1/2.7 or 0.37" (9.4 mm) as you might expect, but approximately two thirds of
that value - 6.66 mm. If you want to know why, see
sensor sizes.
w = 5.33 mm
h = 4.00 mm
w = 5.33 mm
h = 4.00 mm
| Diagonal = √ | 5.33² + 4.00² | = 6.66 mm |
Sony Alpha 7R II diagonal
w = 35.90 mm
h = 24.00 mm
h = 24.00 mm
| Diagonal = √ | 35.90² + 24.00² | = 43.18 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
Mavica FD-92 sensor area
Width = 5.33 mm
Height = 4.00 mm
Surface area = 5.33 × 4.00 = 21.32 mm²
Height = 4.00 mm
Surface area = 5.33 × 4.00 = 21.32 mm²
Alpha 7R II sensor area
Width = 35.90 mm
Height = 24.00 mm
Surface area = 35.90 × 24.00 = 861.60 mm²
Height = 24.00 mm
Surface area = 35.90 × 24.00 = 861.60 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 |
Mavica FD-92 pixel pitch
Sensor width = 5.33 mm
Sensor resolution width = 1264 pixels
Sensor resolution width = 1264 pixels
| Pixel pitch = | 5.33 | × 1000 | = 4.22 µm |
| 1264 |
Alpha 7R II pixel pitch
Sensor width = 35.90 mm
Sensor resolution width = 7976 pixels
Sensor resolution width = 7976 pixels
| Pixel pitch = | 35.90 | × 1000 | = 4.5 µm |
| 7976 |
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 |
Mavica FD-92 pixel area
Pixel pitch = 4.22 µm
Pixel area = 4.22² = 17.81 µm²
Pixel area = 4.22² = 17.81 µm²
Alpha 7R II pixel area
Pixel pitch = 4.5 µm
Pixel area = 4.5² = 20.25 µm²
Pixel area = 4.5² = 20.25 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 |
Mavica FD-92 pixel density
Sensor resolution width = 1264 pixels
Sensor width = 0.533 cm
Pixel density = (1264 / 0.533)² / 1000000 = 5.62 MP/cm²
Sensor width = 0.533 cm
Pixel density = (1264 / 0.533)² / 1000000 = 5.62 MP/cm²
Alpha 7R II pixel density
Sensor resolution width = 7976 pixels
Sensor width = 3.59 cm
Pixel density = (7976 / 3.59)² / 1000000 = 4.94 MP/cm²
Sensor width = 3.59 cm
Pixel density = (7976 / 3.59)² / 1000000 = 4.94 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
Mavica FD-92 sensor resolution
Sensor width = 5.33 mm
Sensor height = 4.00 mm
Effective megapixels = 1.20
Resolution horizontal: X × r = 950 × 1.33 = 1264
Resolution vertical: X = 950
Sensor resolution = 1264 x 950
Sensor height = 4.00 mm
Effective megapixels = 1.20
| r = 5.33/4.00 = 1.33 |
|
Resolution vertical: X = 950
Sensor resolution = 1264 x 950
Alpha 7R II sensor resolution
Sensor width = 35.90 mm
Sensor height = 24.00 mm
Effective megapixels = 42.40
Resolution horizontal: X × r = 5317 × 1.5 = 7976
Resolution vertical: X = 5317
Sensor resolution = 7976 x 5317
Sensor height = 24.00 mm
Effective megapixels = 42.40
| r = 35.90/24.00 = 1.5 |
|
Resolution vertical: X = 5317
Sensor resolution = 7976 x 5317
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 |
Mavica FD-92 crop factor
Sensor diagonal in mm = 6.66 mm
| Crop factor = | 43.27 | = 6.5 |
| 6.66 |
Alpha 7R II crop factor
Sensor diagonal in mm = 43.18 mm
| Crop factor = | 43.27 | = 1 |
| 43.18 |
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).
Mavica FD-92 equivalent aperture
Crop factor = 6.5
Aperture = f1.8 - f2.9
35-mm equivalent aperture = (f1.8 - f2.9) × 6.5 = f11.7 - f18.9
Aperture = f1.8 - f2.9
35-mm equivalent aperture = (f1.8 - f2.9) × 6.5 = f11.7 - f18.9
Alpha 7R II 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 7R II, take the aperture of the lens
you're using and multiply it with crop factor.
Since crop factor for Sony Alpha 7R II is 1, the equivalent aperture is aperture.
Since crop factor for Sony Alpha 7R II is 1, the equivalent aperture is aperture.
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.