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Olympus 7040 vs Pentax K20D

Portability
95
Imaging
36
Features
31
Overall
34
Olympus Stylus 7040 front
 
Pentax K20D front
Portability
59
Imaging
53
Features
52
Overall
52

Olympus 7040 vs Pentax K20D Key Specs

Olympus 7040
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 64 - 1600
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-196mm (F3.0-5.9) lens
  • 144g - 95 x 56 x 26mm
  • Launched January 2010
  • Also referred to as mju 7040
Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Expand to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Revealed June 2008
  • Replaced the Pentax K10D
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Olympus 7040 vs Pentax K20D Overview

Here is a extensive assessment of the Olympus 7040 versus Pentax K20D, former being a Small Sensor Compact while the latter is a Advanced DSLR by brands Olympus and Pentax. The sensor resolution of the 7040 (14MP) and the K20D (15MP) is pretty comparable but the 7040 (1/2.3") and K20D (APS-C) have different sensor measurements.

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The 7040 was launched 19 months later than the K20D which makes them a generation apart from one another. Both of the cameras feature different body design with the Olympus 7040 being a Compact camera and the Pentax K20D being a Mid-size SLR camera.

Before diving straight to a complete comparison, here is a brief summary of how the 7040 grades versus the K20D in relation to portability, imaging, features and an overall rating.

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Reasons to pick Olympus 7040 over the Pentax K20D

 7040 K20D 
RevealedJanuary 2010June 2008Fresher by 19 months
Screen size3"2.7"Bigger screen (+0.3")

Reasons to pick Pentax K20D over the Olympus 7040

 K20D 7040 
Manually focus Very precise focusing

Common features in the Olympus 7040 and Pentax K20D

 7040 K20D 
Screen typeFixed Fixed Fixed screen
Screen resolution230k230kThe same screen resolution
Selfie screen Neither includes selfie screen
Touch friendly screen Absent Touch friendly screen

Olympus 7040 vs Pentax K20D Physical Comparison

For anybody who is intending to carry your camera often, you will want to factor in its weight and measurements. The Olympus 7040 features exterior measurements of 95mm x 56mm x 26mm (3.7" x 2.2" x 1.0") along with a weight of 144 grams (0.32 lbs) and the Pentax K20D has proportions 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 7040 versus Pentax K20D in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will change dependant on the lens you select at that time. Underneath is a front view size comparison of the 7040 and the K20D.

Olympus 7040 vs Pentax K20D size comparison

Using dimensions and weight, the portability score of the 7040 and K20D is 95 and 59 respectively.

Olympus 7040 vs Pentax K20D top view buttons comparison

Olympus 7040 vs Pentax K20D Sensor Comparison

Typically, it is very tough to imagine the difference in sensor sizing only by seeing a spec sheet. The photograph here should give you a far better sense of the sensor measurements in the 7040 and K20D.

As you can see, both the cameras feature different resolutions and different sensor sizing. The 7040 due to its smaller sensor is going to make shooting shallower depth of field more difficult and the Pentax K20D will show more detail utilizing its extra 1 Megapixels. Higher resolution will allow you to crop photographs way more aggressively. The fresher 7040 should have an edge in sensor tech.

Olympus 7040 vs Pentax K20D sensor size comparison

Olympus 7040 vs Pentax K20D Screen and ViewFinder

Olympus 7040 vs Pentax K20D Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Olympus 7040 as a Portrait photography camera
Pentax K20D as a Portrait photography camera
28
decent MP (14 megapixels)
no manual focus
no manual mode
external flash not possible
sensor is small (1/2.3")
doesn't have RAW format
71
focusing manually
decent sensor resolution (15MP)
sensor size is decent (APS-C)
saves RAW files
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Street Comparison

Olympus 7040 Street photography information
Pentax K20D Street photography information
57
built in image stabilization (Sensor-shift)
no articulating screen
sensor is small (1/2.3")
doesn't have RAW format
65
has image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW files
environment proof
screen does not articulate
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Sports Comparison

Olympus 7040 Sports photography information
Pentax K20D Sports photography information
39
built in image stabilization (Sensor-shift)
decent MP (14MP)
supports tracking autofocus
painfully slow continuous shooting (1.0 fps)
lack of shutter priority mode
sensor is small (1/2.3")
doesn't have phase detect autofocus
68
has image stabilization (Sensor based)
decent sensor resolution (15 megapixels)
sensor size is decent (APS-C)
environment proof
sensor has phase detect autofocus
slow frames per second (3.0 frames per second)
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Travel Comparison

Olympus 7040 as a Travel photography camera
Pentax K20D as a Travel photography camera
65
decent MP (14 megapixels)
built-in flash
pretty wide (28mm)
missing Timelapse function
does not offer selfie friendly screen
somewhat slow max aperture (f3.0)
64
environment proof
decent sensor resolution (15 megapixels)
built-in flash
doesn't have selfie friendly screen
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Landscape Comparison

Landscape photography with Olympus 7040
Landscape photography with Pentax K20D
42
pretty wide (28mm)
screen size is decent (3 inch)
built in image stabilization (Sensor-shift)
decent MP (14MP)
no manual focus
can't swap lenses (fixed lens mount)
somewhat slow max aperture (f3.0)
no manual mode
sensor is small (1/2.3")
doesn't have RAW format
missing Timelapse function
70
focusing manually
swap lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
decent sensor resolution (15MP)
sensor size is decent (APS-C)
saves RAW files
environment proof
tiny screen (2.7")
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Vlogging Comparison

Vlogging with Olympus 7040
Vlogging with Pentax K20D
29
pretty wide (28mm)
built in image stabilization (Sensor-shift)
somewhat slow max aperture (f3.0)
does not offer selfie friendly screen
low quality video (1280 x 720 resolution)
missing external microphone socket
9
can't shoot video
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Olympus 7040 vs Pentax K20D Specifications

Detailed spec comparison table for Olympus 7040 and Pentax K20D
 Olympus Stylus 7040Pentax K20D
General Information
Brand Name Olympus Pentax
Model Olympus Stylus 7040 Pentax K20D
Also called as mju 7040 -
Type Small Sensor Compact Advanced DSLR
Launched 2010-01-07 2008-06-25
Body design Compact Mid-size SLR
Sensor Information
Processor Chip TruePic III -
Sensor type CCD CMOS
Sensor size 1/2.3" APS-C
Sensor dimensions 6.08 x 4.56mm 23.4 x 15.6mm
Sensor surface area 27.7mm² 365.0mm²
Sensor resolution 14 megapixels 15 megapixels
Anti aliasing filter
Aspect ratio 4:3 and 16:9 3:2
Highest resolution 4288 x 3216 4672 x 3104
Highest native ISO 1600 3200
Highest boosted ISO - 6400
Lowest native ISO 64 100
RAW data
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points - 11
Lens
Lens mount fixed lens Pentax KAF2
Lens focal range 28-196mm (7.0x) -
Highest aperture f/3.0-5.9 -
Macro focus distance 2cm -
Total lenses - 151
Focal length multiplier 5.9 1.5
Screen
Range of screen Fixed Type Fixed Type
Screen sizing 3" 2.7"
Resolution of screen 230 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder None Optical (pentaprism)
Viewfinder coverage - 95%
Viewfinder magnification - 0.64x
Features
Slowest shutter speed 4 secs 30 secs
Maximum shutter speed 1/2000 secs 1/4000 secs
Continuous shooting speed 1.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Change WB
Image stabilization
Built-in flash
Flash range 5.70 m 13.00 m (at ISO 100)
Flash modes Auto, On, Off, Red-eye, Fill-in Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
Hot shoe
AEB
WB bracketing
Maximum flash sync - 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1280 x 720 (30 fps) 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) -
Highest video resolution 1280x720 None
Video format Motion JPEG -
Mic jack
Headphone jack
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 144 grams (0.32 lb) 800 grams (1.76 lb)
Physical dimensions 95 x 56 x 26mm (3.7" x 2.2" x 1.0") 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 model - D-LI50
Self timer Yes (2 or 12 seconds) Yes (2 or 10 sec)
Time lapse recording
Storage media SC/SDHC, Internal SD/MMC/SDHC card
Storage slots Single Single
Cost at launch $299 $700