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Olympus 1 vs Pentax K20D

Portability
79
Imaging
37
Features
65
Overall
48
Olympus Stylus 1 front
 
Pentax K20D front
Portability
59
Imaging
53
Features
52
Overall
52

Olympus 1 vs Pentax K20D Key Specs

Olympus 1
(Full Review)
  • 12MP - 1/1.7" Sensor
  • 3" Tilting Display
  • ISO 100 - 12800
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 28-300mm (F2.8) lens
  • 402g - 116 x 87 x 57mm
  • Revealed November 2013
  • Successor is Olympus 1s
Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 3200 (Increase to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Revealed June 2008
  • Older Model is Pentax K10D
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Olympus 1 vs Pentax K20D Overview

Let's examine more closely at the Olympus 1 vs Pentax K20D, one being a Small Sensor Superzoom and the other is a Advanced DSLR by rivals Olympus and Pentax. The image resolution of the 1 (12MP) and the K20D (15MP) is very well matched but the 1 (1/1.7") and K20D (APS-C) possess totally different sensor size.

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The 1 was revealed 5 years later than the K20D and that is quite a big gap as far as tech is concerned. Both of the cameras offer different body type with the Olympus 1 being a SLR-like (bridge) camera and the Pentax K20D being a Mid-size SLR camera.

Before delving in to a comprehensive comparison, below is a simple summation of how the 1 scores against the K20D when considering portability, imaging, features and an overall rating.

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Reasons to pick Olympus 1 over the Pentax K20D

 1 K20D 
RevealedNovember 2013June 2008Fresher by 66 months
Display typeTiltingFixed Tilting display
Display sizing3"2.7"Larger display (+0.3")
Display resolution1040k230kSharper display (+810k dot)
Touch display Easily navigate

Reasons to pick Pentax K20D over the Olympus 1

 K20D 1 

Common features in the Olympus 1 and Pentax K20D

 1 K20D 
Manually focus More precise focus
Selfie screen Neither provides selfie screen

Olympus 1 vs Pentax K20D Physical Comparison

For anyone who is looking to carry your camera frequently, you will want to think about its weight and dimensions. The Olympus 1 provides external dimensions of 116mm x 87mm x 57mm (4.6" x 3.4" x 2.2") having a weight of 402 grams (0.89 lbs) and the Pentax K20D has dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs).

Take a look at the Olympus 1 vs Pentax K20D in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will change depending on the lens you are using at the time. Underneath is the front view physical size comparison of the 1 compared to the K20D.

Olympus 1 vs Pentax K20D size comparison

Using size and weight, the portability score of the 1 and K20D is 79 and 59 respectively.

Olympus 1 vs Pentax K20D top view buttons comparison

Olympus 1 vs Pentax K20D Sensor Comparison

Oftentimes, it is very tough to visualise the difference between sensor sizing simply by reading through specifications. The visual underneath might offer you a greater sense of the sensor sizes in the 1 and K20D.

To sum up, both cameras enjoy different megapixels and different sensor sizing. The 1 with its tinier sensor will make getting shallower depth of field tougher and the Pentax K20D will resolve more detail because of its extra 3 Megapixels. Greater resolution will also let you crop photos far more aggressively. The fresher 1 will have a benefit with regard to sensor technology.

Olympus 1 vs Pentax K20D sensor size comparison

Olympus 1 vs Pentax K20D Screen and ViewFinder

Olympus 1 vs Pentax K20D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus 1 as a Portrait photography camera
Pentax K20D as a Portrait photography camera
48
has manual focus
high flash sync (1/2,000 seconds)
has face detect autofocus
supports RAW files
low resolution (12MP)
sensor size is tiny (1/1.7")
71
manual focus
good MP (15 megapixels)
decent sensor size (APS-C)
exports RAW formats
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Street Comparison

Street photography with Olympus 1
Street photography with Pentax K20D
70
screen tilts up and down
built in image stabilization (Optical)
supports RAW files
features touch to focus
sensor size is tiny (1/1.7")
65
built in image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW formats
environment sealing
no articulating screen
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Sports Comparison

Olympus 1 Sports photography details
Pentax K20D Sports photography details
43
built in image stabilization (Optical)
has tracking focus
great battery pack (410 CIPA)
low resolution (12MP)
sensor size is tiny (1/1.7")
has no phase detect autofocus
68
built in image stabilization (Sensor based)
good MP (15 megapixels)
decent sensor size (APS-C)
environment sealing
supports phase detect auto focus
very slow continuous shooting (3.0 fps)
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Travel Comparison

Olympus 1 Travel photography advice
Pentax K20D Travel photography advice
61
great battery pack (410 per charge)
features touch to focus
has built in flash
fairly wide (28mm)
great zoom (300mm)
missing Timelapse mode
low resolution (12MP)
does not feature selfie friendly display
sluggish max aperture (f2.8)
64
environment sealing
good MP (15 megapixels)
flash built-in
display is not selfie friendly
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Landscape Comparison

Olympus 1 Landscape photography information
Pentax K20D Landscape photography information
49
has manual focus
fairly wide (28mm)
screen is a good size (3")
built in image stabilization (Optical)
supports RAW files
great battery pack (410 shots)
lens is fixed (fixed lens mount)
sluggish max aperture (f2.8)
low resolution (12 megapixels)
sensor size is tiny (1/1.7")
missing Timelapse mode
70
manual focus
interchangeable lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
good MP (15 megapixels)
decent sensor size (APS-C)
exports RAW formats
environment sealing
screen is small (2.7 inches)
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Vlogging Comparison

Olympus 1 Vlogging details
Pentax K20D Vlogging details
32
fairly wide (28mm)
touchscreen enabled
built in image stabilization (Optical)
has face detect autofocus
video res high (1920 x 1080 pixels)
sluggish max aperture (f2.8)
does not feature selfie friendly display
missing microphone jack
9
no video shooting
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Olympus 1 vs Pentax K20D Specifications

Detailed spec comparison table for Olympus 1 and Pentax K20D
 Olympus Stylus 1Pentax K20D
General Information
Company Olympus Pentax
Model type Olympus Stylus 1 Pentax K20D
Type Small Sensor Superzoom Advanced DSLR
Revealed 2013-11-25 2008-06-25
Body design SLR-like (bridge) Mid-size SLR
Sensor Information
Processor Chip TruePic VI -
Sensor type BSI-CMOS CMOS
Sensor size 1/1.7" APS-C
Sensor measurements 7.44 x 5.58mm 23.4 x 15.6mm
Sensor area 41.5mm² 365.0mm²
Sensor resolution 12MP 15MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 3968 x 2976 4672 x 3104
Max native ISO 12800 3200
Max boosted ISO - 6400
Minimum native ISO 100 100
RAW images
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 25 11
Lens
Lens mount type fixed lens Pentax KAF2
Lens zoom range 28-300mm (10.7x) -
Max aperture f/2.8 -
Macro focusing range 5cm -
Total lenses - 151
Focal length multiplier 4.8 1.5
Screen
Display type Tilting Fixed Type
Display sizing 3" 2.7"
Display resolution 1,040k dot 230k dot
Selfie friendly
Liveview
Touch capability
Display tech LCD -
Viewfinder Information
Viewfinder Electronic Optical (pentaprism)
Viewfinder resolution 1,440k dot -
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification - 0.64x
Features
Lowest shutter speed 60 seconds 30 seconds
Highest shutter speed 1/2000 seconds 1/4000 seconds
Continuous shooting speed 7.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash distance - 13.00 m (at ISO 100)
Flash options Auto, redeye reduction, fill-on, off, redeye reduction slow sync, full, manual Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
Hot shoe
AEB
WB bracketing
Highest flash sync 1/2000 seconds 1/180 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (30p), 1280 x 720 (30p); high speed: 640 x 480 (120p), 320 x 240 (240p) -
Max video resolution 1920x1080 None
Video file format MPEG-4, H.264 -
Microphone jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 402 grams (0.89 lbs) 800 grams (1.76 lbs)
Dimensions 116 x 87 x 57mm (4.6" x 3.4" x 2.2") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO All around rating 51 65
DXO Color Depth rating 20.7 22.9
DXO Dynamic range rating 11.6 11.1
DXO Low light rating 179 639
Other
Battery life 410 shots -
Type of battery Battery Pack -
Battery ID BLS-5 D-LI50
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec)
Time lapse recording
Type of storage SD/SDHC/SDXC card SD/MMC/SDHC card
Storage slots Single Single
Price at launch $700 $700