Casio Exilim EX-ZR700 vs. Casio Exilim EX-Z1000

Comparison

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Exilim EX-ZR700 image
vs
Exilim EX-Z1000 image
Casio Exilim EX-ZR700 Casio Exilim EX-Z1000
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Megapixels
16.10
10.00
Max. image resolution
4608 x 3456
3648 x 2736

Sensor

Sensor type
CMOS
CCD
Sensor size
1/2.3" (~ 6.16 x 4.62 mm)
1/1.8" (~ 7.11 x 5.33 mm)
Sensor resolution
4627 x 3479
3647 x 2742
Diagonal
7.70 mm
8.89 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 : 1.33
(ratio)
Casio Exilim EX-ZR700 Casio Exilim EX-Z1000
Surface area:
28.46 mm² vs 37.90 mm²
Difference: 9.44 mm² (33%)
Z1000 sensor is approx. 1.33x bigger than ZR700 sensor.
Note: You are comparing sensors of very different generations. There is a gap of 7 years between Casio ZR700 (2013) and Casio Z1000 (2006). Seven years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.
Pixel pitch
1.33 µm
1.95 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: 0.62 µm (47%)
Pixel pitch of Z1000 is approx. 47% higher than pixel pitch of ZR700.
Pixel area
1.77 µm²
3.8 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: 2.03 µm² (115%)
A pixel on Casio Z1000 sensor is approx. 115% bigger than a pixel on Casio ZR700.
Pixel density
56.42 MP/cm²
26.31 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: 30.11 µm (114%)
Casio ZR700 has approx. 114% higher pixel density than Casio Z1000.
To learn about the accuracy of these numbers, click here.



Specs

Casio ZR700
Casio Z1000
Crop factor
5.62
4.87
Total megapixels
16.79
10.30
Effective megapixels
16.10
10.00
Optical zoom
18x
3x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 80, 100, 200, 400, 800, 1600, 3200
Auto, 50, 100, 200, 400, 800, 3200
RAW
Manual focus
Normal focus range
50 cm
40 cm
Macro focus range
4 cm
6 cm
Focal length (35mm equiv.)
25 - 450 mm
38 - 114 mm
Aperture priority
Yes
No
Max. aperture
f3.5 - f5.9
f2.8 - f5.4
Max. aperture (35mm equiv.)
f19.7 - f33.2
f13.6 - f26.3
Metering
Multi pattern, Center Weighted, Spot
Centre weighted, Multi-pattern, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
No
Min. shutter speed
4 sec
4 sec
Max. shutter speed
1/2000 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
None
White balance presets
6
7
Screen size
3"
2.8"
Screen resolution
921,600 dots
230,400 dots
Video capture
Max. video resolution
Storage types
SD/SDHC/SDXC
Secure Digital
USB
USB 2.0 (480 Mbit/sec)
USB 1.0
HDMI
Wireless
GPS
Battery
Rechargeable lithium ion battery NP-130
Lithium-Ion rechargeable
Weight
222 g
139 g
Dimensions
107.4 x 60 x 30.7 mm
92.0 x 58.4 x 22.4 mm
Year
2013
2006




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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

Casio ZR700 diagonal

The diagonal of ZR700 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
Diagonal = √  6.16² + 4.62²   = 7.70 mm

Casio Z1000 diagonal

The diagonal of Z1000 sensor is not 1/1.8 or 0.56" (14.1 mm) as you might expect, but approximately two thirds of that value - 8.89 mm. If you want to know why, see sensor sizes.

w = 7.11 mm
h = 5.33 mm
Diagonal = √  7.11² + 5.33²   = 8.89 mm


Surface area

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

ZR700 sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

Z1000 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 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

ZR700 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4627 pixels
Pixel pitch =   6.16  × 1000  = 1.33 µm
4627

Z1000 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 3647 pixels
Pixel pitch =   7.11  × 1000  = 1.95 µm
3647


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

ZR700 pixel area

Pixel pitch = 1.33 µm

Pixel area = 1.33² = 1.77 µm²

Z1000 pixel area

Pixel pitch = 1.95 µm

Pixel area = 1.95² = 3.8 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

ZR700 pixel density

Sensor resolution width = 4627 pixels
Sensor width = 0.616 cm

Pixel density = (4627 / 0.616)² / 1000000 = 56.42 MP/cm²

Z1000 pixel density

Sensor resolution width = 3647 pixels
Sensor width = 0.711 cm

Pixel density = (3647 / 0.711)² / 1000000 = 26.31 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

ZR700 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.10
r = 6.16/4.62 = 1.33
X = √  16.10 × 1000000  = 3479
1.33
Resolution horizontal: X × r = 3479 × 1.33 = 4627
Resolution vertical: X = 3479

Sensor resolution = 4627 x 3479

Z1000 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 10.00
r = 7.11/5.33 = 1.33
X = √  10.00 × 1000000  = 2742
1.33
Resolution horizontal: X × r = 2742 × 1.33 = 3647
Resolution vertical: X = 2742

Sensor resolution = 3647 x 2742


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


ZR700 crop factor

Sensor diagonal in mm = 7.70 mm
Crop factor =   43.27  = 5.62
7.70

Z1000 crop factor

Sensor diagonal in mm = 8.89 mm
Crop factor =   43.27  = 4.87
8.89

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).

ZR700 equivalent aperture

Crop factor = 5.62
Aperture = f3.5 - f5.9

35-mm equivalent aperture = (f3.5 - f5.9) × 5.62 = f19.7 - f33.2

Z1000 equivalent aperture

Crop factor = 4.87
Aperture = f2.8 - f5.4

35-mm equivalent aperture = (f2.8 - f5.4) × 4.87 = f13.6 - f26.3

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