Canon IXUS 135 vs. Panasonic Lumix DMC-TZ100

Comparison

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IXUS 135 image
vs
Lumix DMC-TZ100 image
Canon IXUS 135 Panasonic Lumix DMC-TZ100
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Megapixels
16.00
20.10
Max. image resolution
4608 x 3456
5472 x 3648

Sensor

Sensor type
CCD
CMOS
Sensor size
1/2.3" (~ 6.16 x 4.62 mm)
13.2 x 8.8 mm
Sensor resolution
4612 x 3468
5492 x 3661
Diagonal
7.70 mm
15.86 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 : 4.08
(ratio)
Canon IXUS 135 Panasonic Lumix DMC-TZ100
Surface area:
28.46 mm² vs 116.16 mm²
Difference: 87.7 mm² (308%)
TZ100 sensor is approx. 4.08x bigger than IXUS 135 sensor.
Note: You are comparing cameras of different generations. There is a 3 year gap between Canon IXUS 135 (2013) and Panasonic TZ100 (2016). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
1.34 µm
2.4 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: 1.06 µm (79%)
Pixel pitch of TZ100 is approx. 79% higher than pixel pitch of IXUS 135.
Pixel area
1.8 µm²
5.76 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: 3.96 µm² (220%)
A pixel on Panasonic TZ100 sensor is approx. 220% bigger than a pixel on Canon IXUS 135.
Pixel density
56.06 MP/cm²
17.31 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: 38.75 µm (224%)
Canon IXUS 135 has approx. 224% higher pixel density than Panasonic TZ100.
To learn about the accuracy of these numbers, click here.



Specs

Canon IXUS 135
Panasonic TZ100
Crop factor
5.62
2.73
Total megapixels
16.60
20.90
Effective megapixels
16.00
20.10
Optical zoom
8x
10x
Digital zoom
Yes
Yes
ISO sensitivity
Auto 100, 200, 400, 800, 1600
Auto, 125-12800 (extendable to 80-25600)
RAW
Manual focus
Normal focus range
50 cm
Macro focus range
1 cm
5 cm
Focal length (35mm equiv.)
28 - 224 mm
25 - 250 mm
Aperture priority
No
Yes
Max. aperture
f3.2 - f6.9
f2.8 - f5.9
Max. aperture (35mm equiv.)
f18 - f38.8
f7.6 - f16.1
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±5 EV (in 1/3 EV steps)
Shutter priority
No
Yes
Min. shutter speed
15 sec
60 sec
Max. shutter speed
1/2000 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
None
Electronic
White balance presets
5
5
Screen size
2.7"
3"
Screen resolution
461,000 dots
1,040,000 dots
Video capture
Max. video resolution
3840x2160 (30p/24p)
Storage types
SD/SDHC/SDXC
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
NB-11LH lithium-ion battery
Lithium-ion battery
Weight
133 g
310 g
Dimensions
95.4 x 56 x 20.6 mm
110.5 x 64.5 x 44.3 mm
Year
2013
2016




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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

Canon IXUS 135 diagonal

The diagonal of IXUS 135 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

Panasonic TZ100 diagonal

w = 13.20 mm
h = 8.80 mm
Diagonal =  13.20² + 8.80²   = 15.86 mm


Surface area

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

IXUS 135 sensor area

Width = 6.16 mm
Height = 4.62 mm

Surface area = 6.16 × 4.62 = 28.46 mm²

TZ100 sensor area

Width = 13.20 mm
Height = 8.80 mm

Surface area = 13.20 × 8.80 = 116.16 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

IXUS 135 pixel pitch

Sensor width = 6.16 mm
Sensor resolution width = 4612 pixels
Pixel pitch =   6.16  × 1000  = 1.34 µm
4612

TZ100 pixel pitch

Sensor width = 13.20 mm
Sensor resolution width = 5492 pixels
Pixel pitch =   13.20  × 1000  = 2.4 µm
5492


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

IXUS 135 pixel area

Pixel pitch = 1.34 µm

Pixel area = 1.34² = 1.8 µm²

TZ100 pixel area

Pixel pitch = 2.4 µm

Pixel area = 2.4² = 5.76 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

IXUS 135 pixel density

Sensor resolution width = 4612 pixels
Sensor width = 0.616 cm

Pixel density = (4612 / 0.616)² / 1000000 = 56.06 MP/cm²

TZ100 pixel density

Sensor resolution width = 5492 pixels
Sensor width = 1.32 cm

Pixel density = (5492 / 1.32)² / 1000000 = 17.31 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

IXUS 135 sensor resolution

Sensor width = 6.16 mm
Sensor height = 4.62 mm
Effective megapixels = 16.00
r = 6.16/4.62 = 1.33
X =  16.00 × 1000000  = 3468
1.33
Resolution horizontal: X × r = 3468 × 1.33 = 4612
Resolution vertical: X = 3468

Sensor resolution = 4612 x 3468

TZ100 sensor resolution

Sensor width = 13.20 mm
Sensor height = 8.80 mm
Effective megapixels = 20.10
r = 13.20/8.80 = 1.5
X =  20.10 × 1000000  = 3661
1.5
Resolution horizontal: X × r = 3661 × 1.5 = 5492
Resolution vertical: X = 3661

Sensor resolution = 5492 x 3661


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


IXUS 135 crop factor

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

TZ100 crop factor

Sensor diagonal in mm = 15.86 mm
Crop factor =   43.27  = 2.73
15.86

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).

IXUS 135 equivalent aperture

Crop factor = 5.62
Aperture = f3.2 - f6.9

35-mm equivalent aperture = (f3.2 - f6.9) × 5.62 = f18 - f38.8

TZ100 equivalent aperture

Crop factor = 2.73
Aperture = f2.8 - f5.9

35-mm equivalent aperture = (f2.8 - f5.9) × 2.73 = f7.6 - f16.1

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