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Pentax K-S2 vs Pentax E90

Portability
64
Imaging
64
Features
82
Overall
71
Pentax K-S2 front
 
Pentax Optio E90 front
Portability
94
Imaging
33
Features
11
Overall
24

Pentax K-S2 vs Pentax E90 Key Specs

Pentax K-S2
(Full Review)
  • 20MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 678g - 123 x 91 x 73mm
  • Announced February 2015
  • Superseded the Pentax K-S1
Pentax E90
(Full Review)
  • 10MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 80 - 3200
  • 1280 x 720 video
  • 32-95mm (F3.1-5.9) lens
  • 145g - 102 x 59 x 25mm
  • Introduced January 2010
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Pentax K-S2 vs Pentax E90 Overview

The following is a extended analysis of the Pentax K-S2 and Pentax E90, one is a Entry-Level DSLR and the latter is a Small Sensor Compact and both of them are offered by Pentax. There is a big difference between the sensor resolutions of the K-S2 (20MP) and E90 (10MP) and the K-S2 (APS-C) and E90 (1/2.3") offer totally different sensor measurements.

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The K-S2 was brought out 5 years after the E90 which is quite a big gap as far as tech is concerned. Both of the cameras have different body design with the Pentax K-S2 being a Compact SLR camera and the Pentax E90 being a Compact camera.

Before diving into a in-depth comparison, here is a brief highlight of how the K-S2 scores against the E90 in relation to portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-S2 over the Pentax E90

 K-S2 E90 
IntroducedFebruary 2015January 2010Newer by 62 months
Manually focus More accurate focusing
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution921k230kCrisper screen (+691k dot)
Selfie screen Take selfies

Reasons to pick Pentax E90 over the Pentax K-S2

 E90 K-S2 

Common features in the Pentax K-S2 and Pentax E90

 K-S2 E90 
Touch friendly screen Neither features Touch friendly screen

Pentax K-S2 vs Pentax E90 Physical Comparison

If you are intending to travel with your camera frequently, you should factor its weight and proportions. The Pentax K-S2 enjoys external measurements of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") having a weight of 678 grams (1.49 lbs) and the Pentax E90 has measurements of 102mm x 59mm x 25mm (4.0" x 2.3" x 1.0") with a weight of 145 grams (0.32 lbs).

Examine the Pentax K-S2 and Pentax E90 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will change based on the lens you have attached during that time. Here is a front view sizing comparison of the K-S2 vs the E90.

Pentax K-S2 vs Pentax E90 size comparison

Looking at size and weight, the portability score of the K-S2 and E90 is 64 and 94 respectively.

Pentax K-S2 vs Pentax E90 top view buttons comparison

Pentax K-S2 vs Pentax E90 Sensor Comparison

Often, it can be difficult to envision the difference between sensor dimensions just by going over a spec sheet. The picture here will give you a stronger sense of the sensor sizing in the K-S2 and E90.

Clearly, both of these cameras have different megapixels and different sensor dimensions. The K-S2 featuring a bigger sensor will make achieving shallow depth of field less difficult and the Pentax K-S2 will offer you more detail having its extra 10 Megapixels. Higher resolution will allow you to crop pictures a bit more aggressively. The newer K-S2 will have a benefit in sensor tech.

Pentax K-S2 vs Pentax E90 sensor size comparison

Pentax K-S2 vs Pentax E90 Screen and ViewFinder

Pentax K-S2 vs Pentax E90 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K-S2
Portrait photography with Pentax E90
78
has manual focus
megapixel count good (20 megapixels)
sensor size is nice (APS-C)
includes face detect focus
supports RAW files
19
lack of manual focus
lack of manual mode
cannot use external flash
low resolution sensor (10MP)
small sensor size (1/2.3")
does not have RAW support
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Street Comparison

Pentax K-S2 Street photography details
Pentax E90 Street photography details
72
screen can move to multiple angles
built in image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
weather sealing
great high ISO (51,200)
more heavy than others (678g)
47
no articulating screen
no image stabilization
small sensor size (1/2.3")
does not have RAW support
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Sports Comparison

Pentax K-S2 Sports photography advice
Pentax E90 Sports photography advice
70
max shutter speed is good (1/6,000 seconds)
built in image stabilization (Sensor based)
megapixel count good (20MP)
sensor size is nice (APS-C)
includes tracking focus
weather sealing
supports phase detect auto focus
max frames per second very slow (5.4 frames per second)
bad battery pack (410 per charge)
16
no shutter priority mode
no image stabilization
low resolution sensor (10MP)
small sensor size (1/2.3")
does not have phase detect AF
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Travel Comparison

Pentax K-S2 Travel photography information
Pentax E90 Travel photography information
65
weather sealing
megapixel count good (20 megapixels)
flash built-in
selfie friendly display
bad battery pack (410 CIPA)
more heavy than others (678g)
50
built-in flash
no Time Lapse mode
low resolution sensor (10 megapixels)
screen isn't selfie friendly
wide angle not good (32mm)
sluggish max aperture (f3.1)
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Landscape Comparison

Landscape photography with Pentax K-S2
Landscape photography with Pentax E90
77
has manual focus
switch lenses (Pentax KAF2 mount)
good sized screen (3")
built in image stabilization (Sensor based)
megapixel count good (20 megapixels)
sensor size is nice (APS-C)
does not have low pass filter
great high ISO (51,200)
supports RAW files
weather sealing
bad battery pack (410 shots)
22
lack of manual focus
cannot switch lenses (fixed lens mount)
wide angle not good (32mm)
sluggish max aperture (f3.1)
screen is somewhat small (2.7 inch)
lack of manual mode
no image stabilization
low resolution sensor (10 megapixels)
small sensor size (1/2.3")
does not have RAW support
no Time Lapse mode
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Vlogging Comparison

Pentax K-S2 as a Vlogging camera
Pentax E90 as a Vlogging camera
71
selfie friendly display
built in image stabilization (Sensor based)
includes face detect focus
great video quality (1920 x 1080 resolution)
comes with microphone support
more heavy than others (678g)
22
wide angle not good (32mm)
sluggish max aperture (f3.1)
screen isn't selfie friendly
no image stabilization
low res video (1280 x 720 pxls)
no mic jack
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Pentax K-S2 vs Pentax E90 Specifications

Detailed spec comparison table for Pentax K-S2 and Pentax E90
 Pentax K-S2Pentax Optio E90
General Information
Brand Pentax Pentax
Model Pentax K-S2 Pentax Optio E90
Class Entry-Level DSLR Small Sensor Compact
Announced 2015-02-10 2010-01-25
Body design Compact SLR Compact
Sensor Information
Processor Chip PRIME MII Prime
Sensor type CMOS CCD
Sensor size APS-C 1/2.3"
Sensor dimensions 23.5 x 15.6mm 6.08 x 4.56mm
Sensor area 366.6mm² 27.7mm²
Sensor resolution 20 megapixel 10 megapixel
Anti aliasing filter
Aspect ratio 3:2 4:3 and 16:9
Highest Possible resolution 5472 x 3648 3648 x 2736
Maximum native ISO 51200 3200
Minimum native ISO 100 80
RAW photos
Autofocusing
Manual focus
Autofocus touch
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 11 3
Lens
Lens mounting type Pentax KAF2 fixed lens
Lens focal range - 32-95mm (3.0x)
Maximum aperture - f/3.1-5.9
Macro focus range - 6cm
Total lenses 151 -
Focal length multiplier 1.5 5.9
Screen
Screen type Fully Articulated Fixed Type
Screen sizing 3 inch 2.7 inch
Resolution of screen 921k dot 230k dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 100 percent -
Viewfinder magnification 0.64x -
Features
Minimum shutter speed 30 secs 4 secs
Fastest shutter speed 1/6000 secs 1/2000 secs
Continuous shutter speed 5.4 frames/s -
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Set white balance
Image stabilization
Integrated flash
Flash range 12.00 m (at ISO 100) 3.50 m
Flash settings Auto, auto w/redeye reduction, flash on, flash on + redeye reduction, slow sync, trailing curtain sync, manual flash -
External flash
AE bracketing
White balance bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (30p, 25p, 24p), 1280 x 720 (60p, 50p) 1280 x 720 (15 fps), 848 x 480 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Maximum video resolution 1920x1080 1280x720
Video data format MPEG-4, H.264 Motion JPEG
Mic input
Headphone input
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 678 grams (1.49 lbs) 145 grams (0.32 lbs)
Physical dimensions 123 x 91 x 73mm (4.8" x 3.6" x 2.9") 102 x 59 x 25mm (4.0" x 2.3" x 1.0")
DXO scores
DXO Overall score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life 410 photographs -
Style of battery Battery Pack -
Battery model D-LI109 2 x AA
Self timer Yes (2 or 12 secs) Yes (2 or 10 sec)
Time lapse recording
Type of storage SD/SDHC/SDXC SD/SDHC, Internal
Storage slots 1 1
Launch price $581 $100