Casio QV-8000SX vs. Casio QV-700

Comparison

change cameras »
QV-8000SX image
vs
QV-700 image
Casio QV-8000SX Casio QV-700
check price » check price »
Megapixels
1.20
0.30
Max. image resolution
1280 x 960
640 x 480

Sensor

Sensor type
CCD
CCD
Sensor size
1/3" (~ 4.8 x 3.6 mm)
1/3" (~ 4.8 x 3.6 mm)
Sensor resolution
1264 x 950
632 x 475
Diagonal
6.00 mm
6.00 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 : 1
(ratio)
Casio QV-8000SX Casio QV-700
Surface area:
17.28 mm² vs 17.28 mm²
Difference: 0 mm² (0%)
QV-8000SX and QV-700 sensors are the same size.
Note: You are comparing cameras of different generations. There is a 2 year gap between Casio QV-8000SX (1999) and Casio QV-700 (1997). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
3.8 µm
7.59 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: 3.79 µm (100%)
Pixel pitch of QV-700 is approx. 100% higher than pixel pitch of QV-8000SX.
Pixel area
14.44 µm²
57.61 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: 43.17 µm² (299%)
A pixel on Casio QV-700 sensor is approx. 299% bigger than a pixel on Casio QV-8000SX.
Pixel density
6.93 MP/cm²
1.73 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: 5.2 µm (301%)
Casio QV-8000SX has approx. 301% higher pixel density than Casio QV-700.
To learn about the accuracy of these numbers, click here.



Specs

Casio QV-8000SX
Casio QV-700
Crop factor
7.21
7.21
Total megapixels
1.30
0.40
Effective megapixels
1.20
0.30
Optical zoom
8x
1x
Digital zoom
Yes
No
ISO sensitivity
120
RAW
Manual focus
Normal focus range
40 cm
70 cm
Macro focus range
1 cm
14 cm
Focal length (35mm equiv.)
40 - 320 mm
38 mm
Aperture priority
Yes
No
Max. aperture
f3.2 - f3.5
f2.0 - f8.0
Max. aperture (35mm equiv.)
f23.1 - f25.2
f14.4 - f57.7
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/4 EV steps)
±2 EV (in 1/4 EV steps)
Shutter priority
Yes
No
Min. shutter speed
64 sec
1/8 sec
Max. shutter speed
1/2000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
4
3
Screen size
2.5"
2.5"
Screen resolution
61,380 dots
61,380 dots
Video capture
Max. video resolution
Storage types
Compact Flash
Internal
USB
USB 1.0
USB 1.0
HDMI
Wireless
GPS
Battery
AA (4) batteries (NiMH recommended)
AA (4) batteries (NiMH recommended)
Weight
320 g
290 g
Dimensions
141 x 75 x 60 mm
147 x 69 x 50 mm
Year
1999
1997




Choose cameras to compare

vs

Popular comparisons:

Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal = √  w² + h²
where w = sensor width and h = sensor height

Casio QV-8000SX diagonal

The diagonal of QV-8000SX sensor is not 1/3 or 0.33" (8.5 mm) as you might expect, but approximately two thirds of that value - 6 mm. If you want to know why, see sensor sizes.

w = 4.80 mm
h = 3.60 mm
Diagonal = √  4.80² + 3.60²   = 6.00 mm

Casio QV-700 diagonal

The diagonal of QV-700 sensor is not 1/3 or 0.33" (8.5 mm) as you might expect, but approximately two thirds of that value - 6 mm. If you want to know why, see sensor sizes.

w = 4.80 mm
h = 3.60 mm
Diagonal = √  4.80² + 3.60²   = 6.00 mm


Surface area

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

QV-8000SX sensor area

Width = 4.80 mm
Height = 3.60 mm

Surface area = 4.80 × 3.60 = 17.28 mm²

QV-700 sensor area

Width = 4.80 mm
Height = 3.60 mm

Surface area = 4.80 × 3.60 = 17.28 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

QV-8000SX pixel pitch

Sensor width = 4.80 mm
Sensor resolution width = 1264 pixels
Pixel pitch =   4.80  × 1000  = 3.8 µm
1264

QV-700 pixel pitch

Sensor width = 4.80 mm
Sensor resolution width = 632 pixels
Pixel pitch =   4.80  × 1000  = 7.59 µm
632


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

QV-8000SX pixel area

Pixel pitch = 3.8 µm

Pixel area = 3.8² = 14.44 µm²

QV-700 pixel area

Pixel pitch = 7.59 µm

Pixel area = 7.59² = 57.61 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

QV-8000SX pixel density

Sensor resolution width = 1264 pixels
Sensor width = 0.48 cm

Pixel density = (1264 / 0.48)² / 1000000 = 6.93 MP/cm²

QV-700 pixel density

Sensor resolution width = 632 pixels
Sensor width = 0.48 cm

Pixel density = (632 / 0.48)² / 1000000 = 1.73 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

QV-8000SX sensor resolution

Sensor width = 4.80 mm
Sensor height = 3.60 mm
Effective megapixels = 1.20
r = 4.80/3.60 = 1.33
X = √  1.20 × 1000000  = 950
1.33
Resolution horizontal: X × r = 950 × 1.33 = 1264
Resolution vertical: X = 950

Sensor resolution = 1264 x 950

QV-700 sensor resolution

Sensor width = 4.80 mm
Sensor height = 3.60 mm
Effective megapixels = 0.30
r = 4.80/3.60 = 1.33
X = √  0.30 × 1000000  = 475
1.33
Resolution horizontal: X × r = 475 × 1.33 = 632
Resolution vertical: X = 475

Sensor resolution = 632 x 475


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


QV-8000SX crop factor

Sensor diagonal in mm = 6.00 mm
Crop factor =   43.27  = 7.21
6.00

QV-700 crop factor

Sensor diagonal in mm = 6.00 mm
Crop factor =   43.27  = 7.21
6.00

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).

QV-8000SX equivalent aperture

Crop factor = 7.21
Aperture = f3.2 - f3.5

35-mm equivalent aperture = (f3.2 - f3.5) × 7.21 = f23.1 - f25.2

QV-700 equivalent aperture

Crop factor = 7.21
Aperture = f2.0 - f8.0

35-mm equivalent aperture = (f2.0 - f8.0) × 7.21 = f14.4 - f57.7

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.