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Pentax ist DS2 vs Sony A9

Portability
68
Imaging
44
Features
33
Overall
39
Pentax ist DS2 front
 
Sony Alpha A9 front
Portability
65
Imaging
74
Features
93
Overall
81

Pentax ist DS2 vs Sony A9 Key Specs

Pentax ist DS2
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 200 - 3200
  • Pentax KAF Mount
  • 605g - 125 x 93 x 66mm
  • Introduced August 2005
Sony A9
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Bump to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 673g - 127 x 96 x 63mm
  • Launched April 2017
  • Successor is Sony A9 II
Photography Glossary

Pentax ist DS2 vs Sony A9 Overview

Following is a comprehensive assessment of the Pentax ist DS2 vs Sony A9, one is a Advanced DSLR and the latter is a Pro Mirrorless by brands Pentax and Sony. There exists a huge gap between the resolutions of the ist DS2 (6MP) and A9 (24MP) and the ist DS2 (APS-C) and A9 (Full frame) have different sensor size.

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The ist DS2 was introduced 12 years before the A9 which is quite a significant gap as far as technology is concerned. Both the cameras have different body design with the Pentax ist DS2 being a Mid-size SLR camera and the Sony A9 being a SLR-style mirrorless camera.

Before going straight to a comprehensive comparison, here is a simple synopsis of how the ist DS2 scores against the A9 with respect to portability, imaging, features and an overall score.

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Reasons to pick Pentax ist DS2 over the Sony A9

 ist DS2 A9 

Reasons to pick Sony A9 over the Pentax ist DS2

 A9 ist DS2 
LaunchedApril 2017August 2005More modern by 141 months
Screen typeTiltingFixed Tilting screen
Screen dimensions3"2.5"Bigger screen (+0.5")
Screen resolution1440k210kCrisper screen (+1230k dot)
Touch screen Quickly navigate

Common features in the Pentax ist DS2 and Sony A9

 ist DS2 A9 
Manual focus Dial accurate focus
Selfie screen Missing selfie screen

Pentax ist DS2 vs Sony A9 Physical Comparison

For anyone who is aiming to carry around your camera regularly, you're going to have to consider its weight and dimensions. The Pentax ist DS2 provides exterior measurements of 125mm x 93mm x 66mm (4.9" x 3.7" x 2.6") along with a weight of 605 grams (1.33 lbs) and the Sony A9 has dimensions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") and a weight of 673 grams (1.48 lbs).

Analyze the Pentax ist DS2 vs Sony A9 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are employing at that time. Underneath is a front view physical size comparison of the ist DS2 compared to the A9.

Pentax ist DS2 vs Sony A9 size comparison

Looking at dimensions and weight, the portability grade of the ist DS2 and A9 is 68 and 65 respectively.

Pentax ist DS2 vs Sony A9 top view buttons comparison

Pentax ist DS2 vs Sony A9 Sensor Comparison

More often than not, it is very difficult to picture the contrast between sensor sizes only by checking specifications. The pic below will offer you a far better sense of the sensor sizing in the ist DS2 and A9.

Plainly, each of these cameras have different megapixel count and different sensor sizes. The ist DS2 with its tinier sensor is going to make achieving shallower DOF trickier and the Sony A9 will give you greater detail using its extra 18MP. Higher resolution will also allow you to crop shots a bit more aggressively. The more aged ist DS2 is going to be disadvantaged when it comes to sensor technology.

Pentax ist DS2 vs Sony A9 sensor size comparison

Pentax ist DS2 vs Sony A9 Screen and ViewFinder

Pentax ist DS2 vs Sony A9 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax ist DS2 Portrait photography details
Sony A9 Portrait photography details
50
manual focus
sensor size is decent (APS-C)
exports RAW formats
does not have liveview
MP count low (6 megapixels)
84
has manual focus
MP count decent (24 megapixels)
great sensor size (Full frame)
has face detect focus
exports RAW files
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Street Comparison

Street photography with Pentax ist DS2
Street photography with Sony A9
60
sensor size is decent (APS-C)
exports RAW formats
lighter than others in class (605 grams)
no moving screen
lack of image stabilization
79
screen tilts
has image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
exports RAW files
supports focus via touch
environment sealing
good ISO range (51,200)
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Sports Comparison

Pentax ist DS2 Sports photography info
Sony A9 Sports photography info
38
sensor size is decent (APS-C)
supports phase detect auto focus
does not have liveview
low frames per second (3.0 frames per second)
lack of image stabilization
MP count low (6MP)
87
great max shutter speed (1/8,000 seconds)
silent shutter (1/32,000 seconds)
fast shooting (20.0 frames per second)
has image stabilization (Sensor based 5-axis)
MP count decent (24 megapixels)
great sensor size (Full frame)
has tracking focus
environment sealing
good battery power (650 shots)
supports phase detect auto focus
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Travel Comparison

Pentax ist DS2 Travel photography advice
Sony A9 Travel photography advice
52
lighter than others in class (605 grams)
built-in flash
doesn't have Timelapse function
MP count low (6 megapixels)
screen is not selfie friendly
74
good battery power (650 shots)
environment sealing
connects via bluetooth
supports focus via touch
MP count decent (24 megapixels)
screen isn't selfie friendly
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Landscape Comparison

Pentax ist DS2 as a Landscape photography camera
Sony A9 as a Landscape photography camera
46
manual focus
change lenses (Pentax KAF mount)
sensor size is decent (APS-C)
exports RAW formats
screen is small (2.5 inches)
does not have liveview
lack of image stabilization
MP count low (6 megapixels)
doesn't have Timelapse function
86
has manual focus
swap lenses (Sony E mount)
screen is a decent size (3")
has image stabilization (Sensor based 5-axis)
MP count decent (24 megapixels)
great sensor size (Full frame)
good ISO range (51,200)
exports RAW files
environment sealing
good battery power (650 shots)
has dual storage slots
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Vlogging Comparison

Vlogging with Pentax ist DS2
Vlogging with Sony A9
22
lighter than others in class (605g)
screen is not selfie friendly
lack of image stabilization
low video resolution ( pixels)
doesn't have microphone jack
37
has touchscreen
has image stabilization (Sensor based 5-axis)
has face detect focus
high res video (3840 x 2160 pxls)
comes with mic jack
screen isn't selfie friendly
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Pentax ist DS2 vs Sony A9 Specifications

Detailed spec comparison table for Pentax ist DS2 and Sony A9
 Pentax ist DS2Sony Alpha A9
General Information
Company Pentax Sony
Model Pentax ist DS2 Sony Alpha A9
Category Advanced DSLR Pro Mirrorless
Introduced 2005-08-22 2017-04-19
Body design Mid-size SLR SLR-style mirrorless
Sensor Information
Processor - BIONZ X
Sensor type CCD BSI-CMOS
Sensor size APS-C Full frame
Sensor dimensions 23.5 x 15.7mm 35.6 x 23.8mm
Sensor surface area 369.0mm² 847.3mm²
Sensor resolution 6 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 3:2 3:2 and 16:9
Highest resolution 3008 x 2008 6000 x 4000
Highest native ISO 3200 51200
Highest boosted ISO - 204800
Minimum native ISO 200 100
RAW format
Minimum boosted ISO - 50
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 11 693
Lens
Lens mounting type Pentax KAF Sony E
Available lenses 151 121
Focal length multiplier 1.5 1
Screen
Screen type Fixed Type Tilting
Screen size 2.5 inch 3 inch
Screen resolution 210 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Optical Electronic
Viewfinder resolution - 3,686 thousand dot
Viewfinder coverage 95% 100%
Viewfinder magnification 0.64x 0.78x
Features
Lowest shutter speed 30s 30s
Highest shutter speed 1/4000s 1/8000s
Highest silent shutter speed - 1/32000s
Continuous shooting speed 3.0 frames per sec 20.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash range - no built-in flash
Flash options Auto, On, Off, Red-eye reduction Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
Hot shoe
Auto exposure bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Highest video resolution - 3840x2160
Video file format - MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless No Built-In
Bluetooth
NFC
HDMI
USB USB 1.0 (1.5 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 605 gr (1.33 pounds) 673 gr (1.48 pounds)
Physical dimensions 125 x 93 x 66mm (4.9" x 3.7" x 2.6") 127 x 96 x 63mm (5.0" x 3.8" x 2.5")
DXO scores
DXO All around score not tested 92
DXO Color Depth score not tested 24.9
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 3517
Other
Battery life - 650 photos
Style of battery - Battery Pack
Battery model 4 x AA NP-FZ100
Self timer Yes (2 or 12 sec) Yes (2, 5, 10 secs + continuous)
Time lapse feature
Type of storage SD/MMC card Dual SD/SDHC/SDXC slots (UHS-II compatible)
Storage slots Single Dual
Launch cost - $4,498