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Olympus E-520 vs Pentax 645D

Portability
68
Imaging
45
Features
45
Overall
45
Olympus E-520 front
 
Pentax 645D front
Portability
50
Imaging
76
Features
52
Overall
66

Olympus E-520 vs Pentax 645D Key Specs

Olympus E-520
(Full Review)
  • 10MP - Four Thirds Sensor
  • 2.7" Fixed Display
  • ISO 100 - 1600
  • Sensor based Image Stabilization
  • No Video
  • Micro Four Thirds Mount
  • 552g - 136 x 92 x 68mm
  • Revealed August 2008
  • Replaced the Olympus E-510
Pentax 645D
(Full Review)
  • 40MP - Medium format Sensor
  • 3" Fixed Screen
  • ISO 200 - 1600
  • No Anti-Alias Filter
  • No Video
  • Pentax 645AF2 Mount
  • 1480g - 156 x 117 x 119mm
  • Introduced March 2010
  • Successor is Pentax 645Z
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Olympus E-520 vs Pentax 645D Overview

Below is a complete comparison of the Olympus E-520 vs Pentax 645D, one being a Entry-Level DSLR and the latter is a Pro DSLR by competitors Olympus and Pentax. There is a big difference among the sensor resolutions of the E-520 (10MP) and 645D (40MP) and the E-520 (Four Thirds) and 645D (Medium format) possess different sensor measurements.

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The E-520 was introduced 18 months before the 645D which makes the cameras a generation apart from each other. Each of these cameras offer different body type with the Olympus E-520 being a Compact SLR camera and the Pentax 645D being a Large SLR camera.

Before diving through a more detailed comparison, below is a quick summary of how the E-520 matches up vs the 645D in regards to portability, imaging, features and an overall grade.

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Reasons to pick Olympus E-520 over the Pentax 645D

 E-520 645D 

Reasons to pick Pentax 645D over the Olympus E-520

 645D E-520 
IntroducedMarch 2010August 2008More recent by 18 months
Screen sizing3"2.7"Bigger screen (+0.3")
Screen resolution921k230kSharper screen (+691k dot)

Common features in the Olympus E-520 and Pentax 645D

 E-520 645D 
Focus manually Very exact focus
Screen typeFixed Fixed Fixed screen
Selfie screen Lacking selfie screen
Touch friendly screen Neither has Touch friendly screen

Olympus E-520 vs Pentax 645D Physical Comparison

For anybody who is going to lug around your camera frequently, you need to factor its weight and dimensions. The Olympus E-520 has physical dimensions of 136mm x 92mm x 68mm (5.4" x 3.6" x 2.7") having a weight of 552 grams (1.22 lbs) whilst the Pentax 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs).

Compare the Olympus E-520 vs Pentax 645D in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilising at that time. The following is the front view sizing comparison of the E-520 and the 645D.

Olympus E-520 vs Pentax 645D size comparison

Using size and weight, the portability rating of the E-520 and 645D is 68 and 50 respectively.

Olympus E-520 vs Pentax 645D top view buttons comparison

Olympus E-520 vs Pentax 645D Sensor Comparison

Often, it's hard to visualize the contrast in sensor measurements merely by checking out specs. The graphic underneath might provide you a far better sense of the sensor dimensions in the E-520 and 645D.

All in all, both of these cameras enjoy different resolutions and different sensor measurements. The E-520 having a smaller sensor is going to make achieving shallower depth of field more difficult and the Pentax 645D will show extra detail using its extra 30 Megapixels. Higher resolution will help you crop shots far more aggressively. The older E-520 will be behind in sensor technology.

Olympus E-520 vs Pentax 645D sensor size comparison

Olympus E-520 vs Pentax 645D Screen and ViewFinder

Olympus E-520 vs Pentax 645D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-520 as a Portrait photography camera
Pentax 645D as a Portrait photography camera
59
has manual focus
sensor size is nice (Four Thirds)
comes with face detection focusing
delivers RAW files
low MP (10MP)
77
has manual focus
megapixel count great (40 megapixels)
big sensor size (Medium format)
exports RAW formats
no liveview
Photography Glossary

Street Comparison

Street photography with Olympus E-520
Street photography with Pentax 645D
65
image stabilization (Sensor based)
sensor size is nice (Four Thirds)
delivers RAW files
screen is fixed
58
big sensor size (Medium format)
exports RAW formats
weather proofing
screen does not articulate
does not have image stabilization
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Sports Comparison

Olympus E-520 Sports photography info
Pentax 645D Sports photography info
55
image stabilization (Sensor based)
sensor size is nice (Four Thirds)
good battery life (650 per charge)
comes with phase detect AF
very slow continuous shooting (4.0 frames/s)
low MP (10MP)
63
megapixel count great (40 megapixels)
big sensor size (Medium format)
weather proofing
comes with phase detect autofocus
no liveview
very slow continuous shooting (1.0 frames/s)
does not have image stabilization
terrible battery power (800 CIPA)
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Travel Comparison

Olympus E-520 as a Travel photography camera
Pentax 645D as a Travel photography camera
52
good battery life (650 per charge)
flash built-in
no Time Lapse mode
low MP (10MP)
screen isn't selfie friendly
55
weather proofing
megapixel count great (40MP)
terrible battery power (800 shots)
doesn't offer selfie friendly display
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Landscape Comparison

Olympus E-520 Landscape photography information
Pentax 645D Landscape photography information
58
has manual focus
swap lenses (Micro Four Thirds mount)
image stabilization (Sensor based)
sensor size is nice (Four Thirds)
delivers RAW files
good battery life (650 shots)
small screen (2.7 inches)
low MP (10 megapixels)
no Time Lapse mode
72
has manual focus
switch lenses (Pentax 645AF2 mount)
screen size is good (3")
megapixel count great (40MP)
big sensor size (Medium format)
does not have anti-alias filter
exports RAW formats
weather proofing
two card slots
no liveview
does not have image stabilization
terrible battery power (800 CIPA)
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Vlogging Comparison

Olympus E-520 as a Vlogging camera
Pentax 645D as a Vlogging camera
9
lack of video recording
9
no video shooting
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Olympus E-520 vs Pentax 645D Specifications

Detailed spec comparison table for Olympus E-520 and Pentax 645D
 Olympus E-520Pentax 645D
General Information
Manufacturer Olympus Pentax
Model type Olympus E-520 Pentax 645D
Type Entry-Level DSLR Pro DSLR
Revealed 2008-08-20 2010-03-10
Physical type Compact SLR Large SLR
Sensor Information
Processor Chip - Prime II
Sensor type CMOS CCD
Sensor size Four Thirds Medium format
Sensor measurements 17.3 x 13mm 44 x 33mm
Sensor surface area 224.9mm² 1,452.0mm²
Sensor resolution 10MP 40MP
Anti alias filter
Aspect ratio 4:3 4:3
Maximum resolution 3648 x 2736 7264 x 5440
Maximum native ISO 1600 1600
Minimum native ISO 100 200
RAW data
Minimum boosted ISO - 100
Autofocusing
Focus manually
Touch focus
AF continuous
Single AF
Tracking AF
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 3 11
Lens
Lens support Micro Four Thirds Pentax 645AF2
Total lenses 45 6
Crop factor 2.1 0.8
Screen
Display type Fixed Type Fixed Type
Display size 2.7 inches 3 inches
Display resolution 230 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch functionality
Display tech - TFT Color LCD with wide-viewing angle and with AR coating
Viewfinder Information
Viewfinder Optical (pentamirror) Optical (pentaprism)
Viewfinder coverage 95% 98%
Viewfinder magnification 0.46x 0.85x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/4000s 1/4000s
Continuous shooting rate 4.0 frames per second 1.0 frames per second
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash distance 12.00 m (at ISO 100) no built-in flash
Flash modes Auto, Auto FP, Manual, Red-Eye Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
Hot shoe
Auto exposure bracketing
WB bracketing
Highest flash synchronize 1/180s 1/125s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Maximum video resolution None None
Microphone port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 552 gr (1.22 pounds) 1480 gr (3.26 pounds)
Dimensions 136 x 92 x 68mm (5.4" x 3.6" x 2.7") 156 x 117 x 119mm (6.1" x 4.6" x 4.7")
DXO scores
DXO All around rating 55 82
DXO Color Depth rating 21.4 24.6
DXO Dynamic range rating 10.4 12.6
DXO Low light rating 548 1262
Other
Battery life 650 images 800 images
Battery type Battery Pack Battery Pack
Battery ID - D-LI90
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage Compact Flash (Type I or II), xD Picture Card SD/SDHC
Card slots Single Dual
Pricing at launch $400 $4,000