Konica-Minolta e-mini D vs. Canon EOS Rebel T3i

Comparison

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e-mini D image
vs
EOS Rebel T3i image
Konica-Minolta e-mini D Canon EOS Rebel T3i
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Megapixels
0.30
18.00
Max. image resolution
640 x 480
5184 x 3456

Sensor

Sensor type
CMOS
CMOS
Sensor size
2/3" (~ 8.8 x 6.6 mm)
22.3 x 14.9 mm
Sensor resolution
632 x 475
5196 x 3464
Diagonal
11.00 mm
26.82 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 : 5.72
(ratio)
Konica-Minolta e-mini D Canon EOS Rebel T3i
Surface area:
58.08 mm² vs 332.27 mm²
Difference: 274.19 mm² (472%)
Rebel T3i sensor is approx. 5.72x bigger than e-mini D sensor.
Note: You are comparing sensors of very different generations. There is a gap of 10 years between Konica-Minolta e-mini D (2001) and Canon Rebel T3i (2011). Ten years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.
Pixel pitch
13.92 µm
4.29 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: 9.63 µm (224%)
Pixel pitch of e-mini D is approx. 224% higher than pixel pitch of Rebel T3i.
Pixel area
193.77 µm²
18.4 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: 175.37 µm² (953%)
A pixel on Konica-Minolta e-mini D sensor is approx. 953% bigger than a pixel on Canon Rebel T3i.
Pixel density
0.52 MP/cm²
5.43 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: 4.91 µm (944%)
Canon Rebel T3i has approx. 944% higher pixel density than Konica-Minolta e-mini D.
To learn about the accuracy of these numbers, click here.



Specs

Konica-Minolta e-mini D
Canon Rebel T3i
Crop factor
3.93
1.61
Total megapixels
18.70
Effective megapixels
18.00
Optical zoom
1x
Digital zoom
No
Yes
ISO sensitivity
100
Auto, 100, 200, 400, 800, 1600, 3200, 6400, (12800 with boost)
RAW
Manual focus
Normal focus range
40 cm
Macro focus range
13 cm
Focal length (35mm equiv.)
38 mm
Aperture priority
No
Yes
Max. aperture
f2.8 - f3.5
Max. aperture (35mm equiv.)
f11 - f13.8
n/a
Metering
Multi, Center-weighted, Spot, Partial
Exposure compensation
±2 EV (in 1/3 EV steps)
±5 EV (in 1/3 EV, 1/2 EV steps)
Shutter priority
No
Yes
Min. shutter speed
4 sec
30 sec
Max. shutter speed
1/2000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
Optical
White balance presets
5
6
Screen size
1.8"
3"
Screen resolution
112,000 dots
1,040,000 dots
Video capture
Max. video resolution
1920x1080 (30p/25p/24p)
Storage types
Internal
SDHC, SDXC, Secure Digital
USB
USB 1.0
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA (2) batteries (NiMH recommended)
Li-Ion
Weight
118 g
570 g
Dimensions
70 x 103 x 30 mm
133.1 x 99.5 x 79.7 mm
Year
2001
2011




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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

Konica-Minolta e-mini D diagonal

The diagonal of e-mini D sensor is not 2/3 or 0.67" (16.9 mm) as you might expect, but approximately two thirds of that value - 11 mm. If you want to know why, see sensor sizes.

w = 8.80 mm
h = 6.60 mm
Diagonal =  8.80² + 6.60²   = 11.00 mm

Canon Rebel T3i diagonal

w = 22.30 mm
h = 14.90 mm
Diagonal =  22.30² + 14.90²   = 26.82 mm


Surface area

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

e-mini D sensor area

Width = 8.80 mm
Height = 6.60 mm

Surface area = 8.80 × 6.60 = 58.08 mm²

Rebel T3i sensor area

Width = 22.30 mm
Height = 14.90 mm

Surface area = 22.30 × 14.90 = 332.27 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

e-mini D pixel pitch

Sensor width = 8.80 mm
Sensor resolution width = 632 pixels
Pixel pitch =   8.80  × 1000  = 13.92 µm
632

Rebel T3i pixel pitch

Sensor width = 22.30 mm
Sensor resolution width = 5196 pixels
Pixel pitch =   22.30  × 1000  = 4.29 µm
5196


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

e-mini D pixel area

Pixel pitch = 13.92 µm

Pixel area = 13.92² = 193.77 µm²

Rebel T3i pixel area

Pixel pitch = 4.29 µm

Pixel area = 4.29² = 18.4 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

e-mini D pixel density

Sensor resolution width = 632 pixels
Sensor width = 0.88 cm

Pixel density = (632 / 0.88)² / 1000000 = 0.52 MP/cm²

Rebel T3i pixel density

Sensor resolution width = 5196 pixels
Sensor width = 2.23 cm

Pixel density = (5196 / 2.23)² / 1000000 = 5.43 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

e-mini D sensor resolution

Sensor width = 8.80 mm
Sensor height = 6.60 mm
Effective megapixels = 0.30
r = 8.80/6.60 = 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

Rebel T3i sensor resolution

Sensor width = 22.30 mm
Sensor height = 14.90 mm
Effective megapixels = 18.00
r = 22.30/14.90 = 1.5
X =  18.00 × 1000000  = 3464
1.5
Resolution horizontal: X × r = 3464 × 1.5 = 5196
Resolution vertical: X = 3464

Sensor resolution = 5196 x 3464


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


e-mini D crop factor

Sensor diagonal in mm = 11.00 mm
Crop factor =   43.27  = 3.93
11.00

Rebel T3i crop factor

Sensor diagonal in mm = 26.82 mm
Crop factor =   43.27  = 1.61
26.82

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).

e-mini D equivalent aperture

Crop factor = 3.93
Aperture = f2.8 - f3.5

35-mm equivalent aperture = (f2.8 - f3.5) × 3.93 = f11 - f13.8

Rebel T3i 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 Canon Rebel T3i, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Canon Rebel T3i is 1.61

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