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Olympus 1s vs Pentax K20D

Portability
79
Imaging
38
Features
66
Overall
49
Olympus Stylus 1s front
 
Pentax K20D front
Portability
59
Imaging
53
Features
52
Overall
52

Olympus 1s vs Pentax K20D Key Specs

Olympus 1s
(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
  • Launched April 2015
  • Succeeded the Olympus 1
Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 3200 (Push to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Revealed June 2008
  • Old Model is Pentax K10D
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Olympus 1s vs Pentax K20D Overview

Let's look much closer at the Olympus 1s and Pentax K20D, former is a Small Sensor Superzoom while the other is a Advanced DSLR by rivals Olympus and Pentax. The resolution of the 1s (12MP) and the K20D (15MP) is fairly comparable but the 1s (1/1.7") and K20D (APS-C) possess totally different sensor sizes.

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The 1s was released 6 years after the K20D which is a fairly serious difference as far as camera technology is concerned. Each of the cameras offer different body type with the Olympus 1s being a SLR-like (bridge) camera and the Pentax K20D being a Mid-size SLR camera.

Before diving through a in-depth comparison, below is a quick overview of how the 1s grades versus the K20D in terms of portability, imaging, features and an overall score.

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Reasons to pick Olympus 1s over the Pentax K20D

 1s K20D 
RevealedApril 2015June 2008More modern by 83 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 1s

 K20D 1s 

Common features in the Olympus 1s and Pentax K20D

 1s K20D 
Manually focus Very accurate focusing
Selfie screen Lack of selfie screen

Olympus 1s vs Pentax K20D Physical Comparison

If you're going to carry around your camera often, you have to factor in its weight and size. The Olympus 1s enjoys outer measurements 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 specifications of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") accompanied by a weight of 800 grams (1.76 lbs).

Contrast the Olympus 1s and Pentax K20D in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will vary depending on the lens you are utilizing at that time. Following is the front view measurement comparison of the 1s and the K20D.

Olympus 1s vs Pentax K20D size comparison

Taking into account dimensions and weight, the portability rating of the 1s and K20D is 79 and 59 respectively.

Olympus 1s vs Pentax K20D top view buttons comparison

Olympus 1s vs Pentax K20D Sensor Comparison

Quite often, its tough to see the difference in sensor sizes purely by checking out specifications. The pic underneath should give you a far better sense of the sensor sizing in the 1s and K20D.

Plainly, both the cameras enjoy different megapixels and different sensor sizes. The 1s featuring a smaller sensor will make shooting shallower depth of field trickier and the Pentax K20D will provide greater detail as a result of its extra 3 Megapixels. Greater resolution will make it easier to crop images far more aggressively. The fresher 1s will have a benefit with regard to sensor technology.

Olympus 1s vs Pentax K20D sensor size comparison

Olympus 1s vs Pentax K20D Screen and ViewFinder

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

Portrait Comparison

Portrait photography with Olympus 1s
Portrait photography with Pentax K20D
46
has manual focus
features face detection autofocus
saves RAW files
sensor resolution low (12 megapixels)
tiny sensor (1/1.7")
71
you can focus manually
good resolution (15MP)
nice sensor size (APS-C)
exports RAW files
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Street Comparison

Olympus 1s Street photography advice
Pentax K20D Street photography advice
71
screen tilts up and down
built in image stabilization (Optical)
saves RAW files
has touch to focus
tiny sensor (1/1.7")
65
has image stabilization (Sensor based)
nice sensor size (APS-C)
exports RAW files
environment sealing
screen does not articulate
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Sports Comparison

Olympus 1s as a Sports photography camera
Pentax K20D as a Sports photography camera
44
built in image stabilization (Optical)
features tracking autofocus
great battery (450 per charge)
sensor resolution low (12 megapixels)
tiny sensor (1/1.7")
no phase detect autofocus
68
has image stabilization (Sensor based)
good resolution (15 megapixels)
nice sensor size (APS-C)
environment sealing
supports phase detect auto focus
slow frames per second (3.0 frames per second)
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Travel Comparison

Olympus 1s Travel photography info
Pentax K20D Travel photography info
64
great battery (450 shots)
has touch to focus
built-in flash
quite wide (28mm)
very long zoom (300mm)
sensor resolution low (12MP)
display isn't selfie friendly
sluggish maximum aperture (f2.8)
64
environment sealing
good resolution (15 megapixels)
has built in flash
doesn't offer selfie friendly display
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Landscape Comparison

Landscape photography with Olympus 1s
Landscape photography with Pentax K20D
53
has manual focus
quite wide (28mm)
nice screen size (3 inch)
built in image stabilization (Optical)
saves RAW files
great battery (450 shots)
cannot swap lens (fixed lens mount)
sluggish maximum aperture (f2.8)
sensor resolution low (12 megapixels)
tiny sensor (1/1.7")
70
you can focus manually
switch lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
good resolution (15 megapixels)
nice sensor size (APS-C)
exports RAW files
environment sealing
tiny screen (2.7")
Photography Glossary

Vlogging Comparison

Vlogging with Olympus 1s
Vlogging with Pentax K20D
32
quite wide (28mm)
screen is touchscreen
built in image stabilization (Optical)
features face detection autofocus
high video quality (1920 x 1080 pixels)
sluggish maximum aperture (f2.8)
display isn't selfie friendly
lack of external microphone support
9
no video
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Olympus 1s vs Pentax K20D Specifications

Detailed spec comparison table for Olympus 1s and Pentax K20D
 Olympus Stylus 1sPentax K20D
General Information
Make Olympus Pentax
Model Olympus Stylus 1s Pentax K20D
Class Small Sensor Superzoom Advanced DSLR
Launched 2015-04-13 2008-06-25
Physical type SLR-like (bridge) Mid-size SLR
Sensor Information
Sensor type BSI-CMOS CMOS
Sensor size 1/1.7" APS-C
Sensor dimensions 7.44 x 5.58mm 23.4 x 15.6mm
Sensor surface area 41.5mm² 365.0mm²
Sensor resolution 12MP 15MP
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Maximum resolution 3968 x 2976 4672 x 3104
Maximum native ISO 12800 3200
Maximum boosted ISO - 6400
Minimum native ISO 100 100
RAW data
Autofocusing
Focus manually
Touch to focus
Continuous AF
Single AF
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 35 11
Lens
Lens mount fixed lens Pentax KAF2
Lens focal range 28-300mm (10.7x) -
Highest aperture f/2.8 -
Macro focus distance 5cm -
Total lenses - 151
Focal length multiplier 4.8 1.5
Screen
Type of display Tilting Fixed Type
Display sizing 3" 2.7"
Resolution of display 1,040k dots 230k dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 1,440k dots -
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification - 0.64x
Features
Lowest shutter speed 60 secs 30 secs
Highest shutter speed 1/2000 secs 1/4000 secs
Continuous shooting rate 7.0fps 3.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash range 10.30 m (at ISO 1600) 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
External flash
Auto exposure bracketing
White balance bracketing
Highest flash synchronize - 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (30p), 1280 x 720 (30p) -
Maximum video resolution 1920x1080 None
Video data format MPEG-4, H.264 -
Mic port
Headphone port
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 sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 402 grams (0.89 lb) 800 grams (1.76 lb)
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 score not tested 65
DXO Color Depth score not tested 22.9
DXO Dynamic range score not tested 11.1
DXO Low light score not tested 639
Other
Battery life 450 photographs -
Battery type Battery Pack -
Battery model BLS-50 D-LI50
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec)
Time lapse shooting
Storage type SD/SDHC/SDXC card SD/MMC/SDHC card
Card slots Single Single
Price at launch $699 $700