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Panasonic GX1 vs Pentax K-S1

Portability
87
Imaging
52
Features
54
Overall
52
Panasonic Lumix DMC-GX1 front
 
Pentax K-S1 front
Portability
69
Imaging
64
Features
70
Overall
66

Panasonic GX1 vs Pentax K-S1 Key Specs

Panasonic GX1
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fixed Display
  • ISO 160 - 12800
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 318g - 116 x 68 x 39mm
  • Revealed February 2012
  • New Model is Panasonic GX7
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 Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 558g - 121 x 93 x 70mm
  • Launched August 2014
  • New Model is Pentax K-S2
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Panasonic GX1 vs Pentax K-S1 Overview

Following is a comprehensive review of the Panasonic GX1 vs Pentax K-S1, former is a Entry-Level Mirrorless while the latter is a Advanced DSLR by manufacturers Panasonic and Pentax. The image resolution of the GX1 (16MP) and the K-S1 (20MP) is pretty similar but the GX1 (Four Thirds) and K-S1 (APS-C) use different sensor sizes.

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The GX1 was manufactured 3 years prior to the K-S1 which is quite a large difference as far as tech is concerned. Both of the cameras come with different body type with the Panasonic GX1 being a Rangefinder-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before we go through a thorough comparison, below is a simple overview of how the GX1 matches up versus the K-S1 with respect to portability, imaging, features and an overall score.

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Reasons to pick Panasonic GX1 over the Pentax K-S1

 GX1 K-S1 
Touch friendly screen Quickly navigate

Reasons to pick Pentax K-S1 over the Panasonic GX1

 K-S1 GX1 
LaunchedAugust 2014February 2012More modern by 30 months
Screen resolution921k460kClearer screen (+461k dot)

Common features in the Panasonic GX1 and Pentax K-S1

 GX1 K-S1 
Manual focus More exact focusing
Screen typeFixed Fixed Fixed screen
Screen dimension3"3"Identical screen dimensions
Selfie screen Neither provides selfie screen

Panasonic GX1 vs Pentax K-S1 Physical Comparison

If you are going to carry around your camera often, you will want to consider its weight and proportions. The Panasonic GX1 provides exterior measurements of 116mm x 68mm x 39mm (4.6" x 2.7" x 1.5") along with a weight of 318 grams (0.70 lbs) while the Pentax K-S1 has measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs).

Compare the Panasonic GX1 vs Pentax K-S1 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will change dependant on the lens you have attached at that time. Underneath is the front view proportions comparison of the GX1 compared to the K-S1.

Panasonic GX1 vs Pentax K-S1 size comparison

Taking into consideration size and weight, the portability rating of the GX1 and K-S1 is 87 and 69 respectively.

Panasonic GX1 vs Pentax K-S1 top view buttons comparison

Panasonic GX1 vs Pentax K-S1 Sensor Comparison

Generally, it can be hard to picture the gap between sensor sizes only by going over specs. The pic below may provide you a clearer sense of the sensor measurements in the GX1 and K-S1.

All in all, both of the cameras posses different megapixels and different sensor sizes. The GX1 due to its tinier sensor is going to make shooting shallower DOF more challenging and the Pentax K-S1 will deliver greater detail due to its extra 4MP. Higher resolution can also allow you to crop photographs somewhat more aggressively. The more aged GX1 is going to be disadvantaged with regard to sensor technology.

Panasonic GX1 vs Pentax K-S1 sensor size comparison

Panasonic GX1 vs Pentax K-S1 Screen and ViewFinder

Panasonic GX1 vs Pentax K-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic GX1 Portrait photography features
Pentax K-S1 Portrait photography features
71
you can focus manually
decent megapixels (16MP)
nice sensor size (Four Thirds)
includes face detection autofocus
saves RAW formats
78
has manual focus
good MP (20MP)
sensor size is nice (APS-C)
provides face detection autofocus
supports RAW files
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Street Comparison

Panasonic GX1 as a Street photography camera
Pentax K-S1 as a Street photography camera
70
nice sensor size (Four Thirds)
saves RAW formats
offers focus via touch
no articulating screen
lack of image stabilization
73
has image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
lighter than competition in class (558 grams)
above average ISO range (51,200)
screen is fixed
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Sports Comparison

Panasonic GX1 Sports photography highlights
Pentax K-S1 Sports photography highlights
47
decent megapixels (16MP)
nice sensor size (Four Thirds)
includes tracking autofocus
slow frames per second (4.0 frames per second)
lack of image stabilization
bad battery (300 CIPA)
doesn't have phase detect autofocus
69
maximum shutter speed is high (1/6,000 seconds)
has image stabilization (Sensor based)
good MP (20 megapixels)
sensor size is nice (APS-C)
provides tracking autofocus
sensor has phase detect autofocus
low frames per second (5.4 frames per second)
bad battery pack (410 per charge)
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Travel Comparison

Panasonic GX1 Travel photography details
Pentax K-S1 Travel photography details
65
offers focus via touch
decent megapixels (16MP)
has built in flash
no Timelapse mode
bad battery (300 shots)
screen is not selfie friendly
60
lighter than competition in class (558 grams)
good MP (20MP)
built-in flash
no Time Lapse mode
bad battery pack (410 CIPA)
display isn't selfie friendly
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Landscape Comparison

Panasonic GX1 Landscape photography factors
Pentax K-S1 Landscape photography factors
62
you can focus manually
swap lenses (Micro Four Thirds mount)
nice screen size (3 inch)
decent megapixels (16 megapixels)
nice sensor size (Four Thirds)
saves RAW formats
lack of image stabilization
bad battery (300 per charge)
no Timelapse mode
73
has manual focus
switch lenses (Pentax KAF2 mount)
pretty good screen size (3")
has image stabilization (Sensor based)
good MP (20MP)
sensor size is nice (APS-C)
does not have low pass filter
above average ISO range (51,200)
supports RAW files
bad battery pack (410 CIPA)
no Time Lapse mode
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Vlogging Comparison

Panasonic GX1 Vlogging info
Pentax K-S1 Vlogging info
32
touchscreen enabled
includes face detection autofocus
video resolution high (1920 x 1080 resolution)
screen is not selfie friendly
lack of image stabilization
no external microphone jack
33
has image stabilization (Sensor based)
provides face detection autofocus
video resolution high (1920 x 1080 pxls)
lighter than competition in class (558g)
display isn't selfie friendly
no external mic socket
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Panasonic GX1 vs Pentax K-S1 Specifications

Detailed spec comparison table for Panasonic GX1 and Pentax K-S1
 Panasonic Lumix DMC-GX1Pentax K-S1
General Information
Company Panasonic Pentax
Model Panasonic Lumix DMC-GX1 Pentax K-S1
Type Entry-Level Mirrorless Advanced DSLR
Revealed 2012-02-14 2014-08-27
Physical type Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Powered by Venus Engine FHD Prime MII
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.5 x 15.6mm
Sensor area 224.9mm² 366.6mm²
Sensor resolution 16 megapixel 20 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Highest Possible resolution 4592 x 3448 5472 x 3648
Maximum native ISO 12800 51200
Lowest native ISO 160 100
RAW images
Autofocusing
Manual focus
Touch to focus
Continuous AF
AF single
Tracking AF
Selective AF
AF center weighted
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 23 11
Lens
Lens mounting type Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Crop factor 2.1 1.5
Screen
Type of display Fixed Type Fixed Type
Display diagonal 3 inches 3 inches
Resolution of display 460 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch capability
Display technology TFT Color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder type Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 100%
Viewfinder magnification - 0.64x
Features
Min shutter speed 60 secs 30 secs
Max shutter speed 1/4000 secs 1/6000 secs
Continuous shutter rate 4.0 frames/s 5.4 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash range 7.60 m 10.00 m (at ISO 100)
Flash modes Auto, On, Off, Red-Eye, Slow Sync Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual
External flash
Auto exposure bracketing
White balance bracketing
Max flash synchronize 1/160 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (60 fps) 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30fps) 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps)
Maximum video resolution 1920x1080 1920x1080
Video file format MPEG-4, AVCHD H.264
Mic port
Headphone port
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Optional
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 318 gr (0.70 pounds) 558 gr (1.23 pounds)
Dimensions 116 x 68 x 39mm (4.6" x 2.7" x 1.5") 121 x 93 x 70mm (4.8" x 3.7" x 2.8")
DXO scores
DXO Overall score 55 78
DXO Color Depth score 20.8 23.5
DXO Dynamic range score 10.6 13.0
DXO Low light score 703 1061
Other
Battery life 300 shots 410 shots
Battery type Battery Pack Battery Pack
Battery model - D-LI109
Self timer Yes (2 or 10 sec) Yes ( 2 or 12 seconds)
Time lapse recording
Storage type SD/SDHC/SDXC SD/SDHC/SDXC
Card slots 1 1
Cost at release $228 $339