General

Canon EOS 20D Olympus PEN E-PM1
Brand
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Canon Olympus
Lowest price
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Unknown $1,289.30
Announced
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August 2004 June 2011

Sensor

Type
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CMOS CMOS
Crop factor
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1.6x 2.1x
Megapixels
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8.2 MP 12.2 MP
Light sensitivity
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1,600 ISO 12,800 ISO
Light sensitivity (boost)
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3,200 ISO Unknown
Sensor cleaning
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Unknown Yes

Sensor (Advanced)

True resolution
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8.2 MP 12.2 MP
Native resolution
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3504 × 2336 4032 × 3024
Pixel size
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41.2 µm² 18.4 µm²

Screen

Type
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LCD LCD
Size
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1.8" 3"
Resolution
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118k dots 460k dots
Touch screen
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No No
Flips out
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No No
Live view
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No Yes

Lenses

Lens availability
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220 lenses 108 lenses
Lens mount
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Canon EF Micro Four Thirds

Form factor

Size
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144×106×72 mm 110×64×34 mm
Depth
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2.8" 1.3"
Weight
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770 g 263 g
Interchangeable lenses
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Yes Yes
Waterproof
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No No
Weather sealed
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No No
Built-in focus motor
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No No

Viewfinder

Type
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Pentaprism None
Viewfinder size
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0.56x n/a
Coverage
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95% n/a

Movies

Format
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None 1080p @ 60fps
Supports 24p
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n/a No
High-speed framerate
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n/a None
External mic jack
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n/a No
Autofocus
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None Contrast detection
Continuous focus
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n/a Yes
All formats
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n/a
  1. 480p @ 30fps
  2. 720p @ 30fps
  3. 720p @ 60fps
  4. 1080p @ 60fps

Features

Panorama
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Unknown Yes
HDR
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Unknown No
3D
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Unknown Yes
Image stabilization
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None
  1. Sensor shift
Supports RAW
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Yes Yes
GPS
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No No

Performance

Startup delay
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Unknown 1800 ms
Shutter lag
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Unknown 246 ms
Battery life
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Unknown 330 shots
Continuous shooting
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5 fps 5.5 fps

Focus system

Autofocus
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Unknown Contrast detection
Focus points
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n/a 35
Cross type focus points
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n/a Unknown

Shutter

Max
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1/8000s 1/4000s
Min
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30s 60s

Flash

Built-in flash
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Yes No
Popup
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Yes n/a
External connection
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Yes Yes

Storage

Storage slots
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1 1
Supported formats
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  1. CompactFlash (Type I)
  2. CompactFlash (Type II)
  1. SD
  2. SDHC
  3. SDXC

DXO Mark Scores

Image quality
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62.0 52.0
Color depth
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21.9 bits 21 bits
Dynamic range
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11 EV 10.3 EV
Low light performance
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721 ISO 499 ISO