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Nikon D90 vs Pentax K-S1

Portability
60
Imaging
51
Features
52
Overall
51
Nikon D90 front
 
Pentax K-S1 front
Portability
69
Imaging
63
Features
70
Overall
65

Nikon D90 vs Pentax K-S1 Key Specs

Nikon D90
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 3200 (Push to 6400)
  • 1280 x 720 video
  • Nikon F Mount
  • 703g - 132 x 103 x 77mm
  • Revealed October 2008
  • Old Model is Nikon D80
  • Successor is Nikon D7000
Pentax K-S1
(Full Review)
  • 20MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 558g - 121 x 93 x 70mm
  • Announced August 2014
  • Successor is Pentax K-S2
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Nikon D90 vs Pentax K-S1 Overview

Here is a complete overview of the Nikon D90 vs Pentax K-S1, both Advanced DSLR digital cameras by rivals Nikon and Pentax. There exists a crucial gap between the sensor resolutions of the D90 (12MP) and K-S1 (20MP) but both cameras offer the same sensor sizing (APS-C).

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The D90 was announced 6 years earlier than the K-S1 and that is quite a serious gap as far as technology is concerned. Both of the cameras have the same body design (Mid-size SLR).

Before getting straight to a in-depth comparison, here is a brief summary of how the D90 matches up versus the K-S1 in relation to portability, imaging, features and an overall rating.

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Reasons to pick Nikon D90 over the Pentax K-S1

 D90 K-S1 

Reasons to pick Pentax K-S1 over the Nikon D90

 K-S1 D90 
AnnouncedAugust 2014October 2008Fresher by 71 months
Screen resolution921k920kSharper screen (+1k dot)

Common features in the Nikon D90 and Pentax K-S1

 D90 K-S1 
Manual focus More exact focus
Screen typeFixed Fixed Fixed screen
Screen dimensions3"3"Equal screen measurement
Selfie screen Neither has selfie screen
Touch screen Absent Touch screen

Nikon D90 vs Pentax K-S1 Physical Comparison

For anyone who is aiming to carry your camera regularly, you'll have to factor in its weight and size. The Nikon D90 has exterior dimensions of 132mm x 103mm x 77mm (5.2" x 4.1" x 3.0") along with a weight of 703 grams (1.55 lbs) whilst the Pentax K-S1 has specifications of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") along with a weight of 558 grams (1.23 lbs).

Look at the Nikon D90 vs Pentax K-S1 in the all 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 using at that time. Here is a front view physical size comparison of the D90 versus the K-S1.

Nikon D90 vs Pentax K-S1 size comparison

Factoring in dimensions and weight, the portability grade of the D90 and K-S1 is 60 and 69 respectively.

Nikon D90 vs Pentax K-S1 top view buttons comparison

Nikon D90 vs Pentax K-S1 Sensor Comparison

Typically, it can be difficult to picture the gap between sensor sizing only by reading through specifications. The graphic underneath may give you a much better sense of the sensor dimensions in the D90 and K-S1.

Plainly, the two cameras have the same sensor dimensions albeit different resolution. You should count on the Pentax K-S1 to give greater detail with its extra 8 Megapixels. Higher resolution will also enable you to crop shots a bit more aggressively. The older D90 is going to be disadvantaged when it comes to sensor technology.

Nikon D90 vs Pentax K-S1 sensor size comparison

Nikon D90 vs Pentax K-S1 Screen and ViewFinder

Nikon D90 vs Pentax K-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Nikon D90 Portrait photography info
Pentax K-S1 Portrait photography info
62
manual focus
sensor size is decent (APS-C)
offers face detect focus
saves RAW files
low megapixels (12MP)
77
focusing manually
decent megapixels (20MP)
good sensor size (APS-C)
provides face detect focusing
saves RAW files
Photography Glossary

Street Comparison

Nikon D90 Street photography features
Pentax K-S1 Street photography features
54
sensor size is decent (APS-C)
saves RAW files
no articulating screen
lack of image stabilization
73
image stabilization (Sensor based)
good sensor size (APS-C)
saves RAW files
lighter than competition in class (558g)
good ISO range (51,200)
fixed screen
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Sports Comparison

Nikon D90 Sports photography details
Pentax K-S1 Sports photography details
45
sensor size is decent (APS-C)
comes with phase detect auto focus
continuous shooting slow (4.5 fps)
lack of image stabilization
low megapixels (12 megapixels)
69
high shutter speed (1/6,000 seconds)
image stabilization (Sensor based)
decent megapixels (20MP)
good sensor size (APS-C)
provides tracking focus
comes with phase detect AF
slow fps (5.4 frames/s)
bad battery (410 shots)
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Travel Comparison

Travel photography with Nikon D90
Travel photography with Pentax K-S1
44
flash built-in
lack of Time Lapse mode
low megapixels (12 megapixels)
screen isn't selfie friendly
60
lighter than competition in class (558g)
decent megapixels (20 megapixels)
flash built-in
doesn't have Time Lapse recording
bad battery (410 per charge)
screen isn't selfie friendly
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Landscape Comparison

Nikon D90 as a Landscape photography camera
Pentax K-S1 as a Landscape photography camera
57
manual focus
change lenses (Nikon F mount)
nice screen size (3")
sensor size is decent (APS-C)
saves RAW files
lack of image stabilization
low megapixels (12 megapixels)
lack of Time Lapse mode
73
focusing manually
swap lenses (Pentax KAF2 mount)
screen size is decent (3 inch)
image stabilization (Sensor based)
decent megapixels (20MP)
good sensor size (APS-C)
does not have anti-alias filter
good ISO range (51,200)
saves RAW files
bad battery (410 CIPA)
doesn't have Time Lapse recording
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Vlogging Comparison

Nikon D90 Vlogging details
Pentax K-S1 Vlogging details
21
offers face detect focus
screen isn't selfie friendly
lack of image stabilization
low quality video (1280 x 720 pxls)
lack of mic port
33
image stabilization (Sensor based)
provides face detect focusing
high res video (1920 x 1080 resolution)
lighter than competition in class (558g)
screen isn't selfie friendly
doesn't have mic jack
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Nikon D90 vs Pentax K-S1 Specifications

Detailed spec comparison table for Nikon D90 and Pentax K-S1
 Nikon D90Pentax K-S1
General Information
Company Nikon Pentax
Model Nikon D90 Pentax K-S1
Category Advanced DSLR Advanced DSLR
Revealed 2008-10-13 2014-08-27
Body design Mid-size SLR Mid-size SLR
Sensor Information
Processor - Prime MII
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor dimensions 23.6 x 15.8mm 23.5 x 15.6mm
Sensor area 372.9mm² 366.6mm²
Sensor resolution 12MP 20MP
Anti aliasing filter
Aspect ratio 3:2 3:2
Maximum resolution 4288 x 2848 5472 x 3648
Maximum native ISO 3200 51200
Maximum boosted ISO 6400 -
Minimum native ISO 200 100
RAW pictures
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 11 11
Lens
Lens mounting type Nikon F Pentax KAF2
Available lenses 309 151
Crop factor 1.5 1.5
Screen
Screen type Fixed Type Fixed Type
Screen size 3" 3"
Resolution of screen 920k dot 921k dot
Selfie friendly
Liveview
Touch function
Screen technology Super Density TFT color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 96 percent 100 percent
Viewfinder magnification 0.64x 0.64x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/4000 seconds 1/6000 seconds
Continuous shooting speed 4.5 frames/s 5.4 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash range 17.00 m (at ISO 100) 10.00 m (at ISO 100)
Flash modes Auto, On, Off, Front curtain, Rear curtain, Red-Eye, Slow Sync Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual
Hot shoe
Auto exposure bracketing
WB bracketing
Maximum flash sync 1/200 seconds -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1280 x 720 (24 fps), 640 x 424 (24 fps), 320 x 216 (24 fps) 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps)
Maximum video resolution 1280x720 1920x1080
Video format Motion JPEG H.264
Mic input
Headphone input
Connectivity
Wireless Eye-Fi Connected Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional Optional
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 703g (1.55 lb) 558g (1.23 lb)
Physical dimensions 132 x 103 x 77mm (5.2" x 4.1" x 3.0") 121 x 93 x 70mm (4.8" x 3.7" x 2.8")
DXO scores
DXO All around score 73 78
DXO Color Depth score 22.7 23.5
DXO Dynamic range score 12.5 13.0
DXO Low light score 977 1061
Other
Battery life 850 photos 410 photos
Type of battery Battery Pack Battery Pack
Battery model EN-EL3e D-LI109
Self timer Yes (2, 5, 10 or 20 sec) Yes ( 2 or 12 seconds)
Time lapse shooting
Type of storage SD/SDHC SD/SDHC/SDXC
Storage slots Single Single
Price at launch $1,199 $339