Olympus E-620 vs Pentax ist DS2

Olympus E-620 front
Pentax ist DS2 front

Olympus E-620 vs Pentax ist DS2 Key Specs

Olympus E-620
(Full Review)
  • 12MP - Four Thirds Sensor
  • 2.7" Fully Articulated Screen
  • ISO 100 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Micro Four Thirds Mount
  • 500g - 130 x 94 x 60mm
  • Revealed July 2009
Pentax ist DS2
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • Pentax KAF Mount
  • 605g - 125 x 93 x 66mm
  • Revealed August 2005
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Olympus E-620 vs Pentax ist DS2 Overview

Following is a comprehensive assessment of the Olympus E-620 and Pentax ist DS2, one is a Entry-Level DSLR and the other is a Advanced DSLR by competitors Olympus and Pentax. There exists a sizeable gap between the sensor resolutions of the E-620 (12MP) and ist DS2 (6MP) and the E-620 (Four Thirds) and ist DS2 (APS-C) come with different sensor sizes.

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The E-620 was announced 3 years after the ist DS2 which is quite a large gap as far as technology is concerned. Each of these cameras offer different body type with the Olympus E-620 being a Compact SLR camera and the Pentax ist DS2 being a Mid-size SLR camera.

Before going in to a complete comparison, below is a quick introduction of how the E-620 scores against the ist DS2 in regards to portability, imaging, features and an overall score.

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Reasons to pick Olympus E-620 over the Pentax ist DS2

 E-620 ist DS2 
RevealedJuly 2009August 2005More modern by 48 months
Display typeFully ArticulatedFixed Fully Articulating display
Display sizing2.7"2.5"Larger display (+0.2")
Display resolution230k210kCrisper display (+20k dot)
Selfie screen Easy selfies

Reasons to pick Pentax ist DS2 over the Olympus E-620

 ist DS2 E-620 

Common features in the Olympus E-620 and Pentax ist DS2

 E-620 ist DS2 
Manually focus Dial precise focus
Touch display Missing Touch display

Olympus E-620 vs Pentax ist DS2 Physical Comparison

For anybody who is intending to carry around your camera, you have to take into account its weight and proportions. The Olympus E-620 enjoys external measurements of 130mm x 94mm x 60mm (5.1" x 3.7" x 2.4") having a weight of 500 grams (1.10 lbs) whilst the Pentax ist DS2 has measurements of 125mm x 93mm x 66mm (4.9" x 3.7" x 2.6") having a weight of 605 grams (1.33 lbs).

Check the Olympus E-620 and Pentax ist DS2 in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you select at that time. Here is the front view measurements comparison of the E-620 and the ist DS2.

Olympus E-620 vs Pentax ist DS2 size comparison

Using dimensions and weight, the portability rating of the E-620 and ist DS2 is 71 and 68 respectively.

Olympus E-620 vs Pentax ist DS2 top view buttons comparison

Olympus E-620 vs Pentax ist DS2 Sensor Comparison

Typically, it can be difficult to imagine the difference between sensor sizes simply by checking specifications. The image underneath will help offer you a greater sense of the sensor measurements in the E-620 and ist DS2.

Plainly, both cameras enjoy different megapixel count and different sensor sizes. The E-620 using its tinier sensor is going to make getting shallow depth of field tougher and the Olympus E-620 will give you greater detail with its extra 6MP. Greater resolution can also enable you to crop photos far more aggressively. The newer E-620 provides an advantage when it comes to sensor innovation.

Olympus E-620 vs Pentax ist DS2 sensor size comparison

Olympus E-620 vs Pentax ist DS2 Screen and ViewFinder

Olympus E-620 vs Pentax ist DS2 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-620 Portrait photography features
Pentax ist DS2 Portrait photography features
focusing manually
decent sensor size (Four Thirds)
offers face detect focusing
supports RAW files
low MP (12 megapixels)
has manual focus
sensor size is decent (APS-C)
delivers RAW files
does not have liveview
low resolution sensor (6MP)
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Street Comparison

Olympus E-620 Street photography highlights
Pentax ist DS2 Street photography highlights
screen articulates
has image stabilization (Sensor based)
decent sensor size (Four Thirds)
supports RAW files
sensor size is decent (APS-C)
delivers RAW files
lighter than competitors (605 grams)
no moving screen
lack of image stabilization
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Sports Comparison

Olympus E-620 Sports photography features
Pentax ist DS2 Sports photography features
has image stabilization (Sensor based)
decent sensor size (Four Thirds)
has phase detect AF
low fps (4.0 frames per second)
low MP (12MP)
low battery pack (500 per charge)
sensor size is decent (APS-C)
supports phase detect AF
does not have liveview
very slow continuous shooting (3.0 frames/s)
lack of image stabilization
low resolution sensor (6 megapixels)
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Travel Comparison

Olympus E-620 Travel photography details
Pentax ist DS2 Travel photography details
has built in flash
selfie friendly screen
lack of Timelapse function
low battery pack (500 per charge)
low MP (12 megapixels)
lighter than competitors (605 grams)
has built in flash
doesn't have Timelapse function
low resolution sensor (6MP)
screen isn't selfie friendly
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Landscape Comparison

Olympus E-620 as a Landscape photography camera
Pentax ist DS2 as a Landscape photography camera
focusing manually
switch lenses (Micro Four Thirds mount)
has image stabilization (Sensor based)
decent sensor size (Four Thirds)
supports RAW files
screen is somewhat small (2.7 inch)
low MP (12MP)
low battery pack (500 shots)
lack of Timelapse function
has manual focus
change lenses (Pentax KAF mount)
sensor size is decent (APS-C)
delivers RAW files
tiny screen (2.5 inches)
does not have liveview
lack of image stabilization
low resolution sensor (6MP)
doesn't have Timelapse function
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Vlogging Comparison

Olympus E-620 Vlogging factors
Pentax ist DS2 Vlogging factors
no video recording
lighter than competitors (605 grams)
screen isn't selfie friendly
lack of image stabilization
low res video ( resolution)
doesn't have external microphone support
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Olympus E-620 vs Pentax ist DS2 Specifications

Detailed spec comparison table for Olympus E-620 and Pentax ist DS2
 Olympus E-620Pentax ist DS2
General Information
Company Olympus Pentax
Model Olympus E-620 Pentax ist DS2
Category Entry-Level DSLR Advanced DSLR
Revealed 2009-07-06 2005-08-22
Physical type Compact SLR Mid-size SLR
Sensor Information
Chip TruePic III+ -
Sensor type CMOS CCD
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.5 x 15.7mm
Sensor surface area 224.9mm² 369.0mm²
Sensor resolution 12 megapixels 6 megapixels
Anti aliasing filter
Aspect ratio 4:3, 3:2 and 16:9 3:2
Max resolution 4032 x 3024 3008 x 2008
Max native ISO 3200 3200
Lowest native ISO 100 200
RAW format
Focus manually
Touch focus
Continuous autofocus
Autofocus single
Tracking autofocus
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 7 11
Lens mount Micro Four Thirds Pentax KAF
Amount of lenses 45 151
Crop factor 2.1 1.5
Screen type Fully Articulated Fixed Type
Screen sizing 2.7 inches 2.5 inches
Screen resolution 230 thousand dots 210 thousand dots
Selfie friendly
Touch operation
Screen tech HyperCrystal LCD -
Viewfinder Information
Viewfinder Optical (pentamirror) Optical
Viewfinder coverage 95% 95%
Viewfinder magnification 0.48x 0.64x
Minimum shutter speed 60s 30s
Fastest shutter speed 1/4000s 1/4000s
Continuous shutter rate 4.0 frames per sec 3.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash range 12.00 m -
Flash modes Auto, On, Off, Red-Eye, Slow Sync, Front curtain, Rear curtain, Fill-in, Manual Auto, On, Off, Red-eye reduction
External flash
AE bracketing
WB bracketing
Fastest flash synchronize 1/180s -
AF area
Center weighted
Video features
Max video resolution None -
Microphone support
Headphone support
Wireless None No
USB USB 2.0 (480 Mbit/sec) USB 1.0 (1.5 Mbit/sec)
GPS None None
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 500g (1.10 pounds) 605g (1.33 pounds)
Dimensions 130 x 94 x 60mm (5.1" x 3.7" x 2.4") 125 x 93 x 66mm (4.9" x 3.7" x 2.6")
DXO scores
DXO Overall score 55 not tested
DXO Color Depth score 21.3 not tested
DXO Dynamic range score 10.3 not tested
DXO Low light score 536 not tested
Battery life 500 photos -
Form of battery Battery Pack -
Battery model BLS-1 4 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse shooting
Storage type Compact Flash (Type I or II), xD Picture Card SD/MMC card
Card slots 1 1
Cost at release $799 -