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Panasonic GM1 vs Pentax K-S1

Portability
93
Imaging
53
Features
60
Overall
55
Panasonic Lumix DMC-GM1 front
 
Pentax K-S1 front
Portability
69
Imaging
63
Features
70
Overall
65

Panasonic GM1 vs Pentax K-S1 Key Specs

Panasonic GM1
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fixed Display
  • ISO 200 - 25600
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 204g - 99 x 55 x 30mm
  • Announced December 2013
  • New Model is Panasonic GM5
Pentax K-S1
(Full Review)
  • 20MP - APS-C Sensor
  • 3" Fixed Display
  • 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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Panasonic GM1 vs Pentax K-S1 Overview

Its time to examine more closely at the Panasonic GM1 and Pentax K-S1, one being a Entry-Level Mirrorless and the other is a Advanced DSLR by companies Panasonic and Pentax. The sensor resolution of the GM1 (16MP) and the K-S1 (20MP) is fairly well matched but the GM1 (Four Thirds) and K-S1 (APS-C) use different sensor sizes.

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The GM1 was introduced 8 months before the K-S1 and they are both of a similar generation. Both of the cameras come with different body type with the Panasonic GM1 being a Rangefinder-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before diving in to a in depth comparison, below is a quick highlight of how the GM1 scores against the K-S1 with regard to portability, imaging, features and an overall rating.

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Reasons to pick Panasonic GM1 over the Pentax K-S1

 GM1 K-S1 
Display resolution1036k921kSharper display (+115k dot)
Touch friendly display Easily navigate

Reasons to pick Pentax K-S1 over the Panasonic GM1

 K-S1 GM1 
AnnouncedAugust 2014December 2013Fresher by 8 months

Common features in the Panasonic GM1 and Pentax K-S1

 GM1 K-S1 
Focus manually Very accurate focus
Display typeFixed Fixed Fixed display
Display dimension3"3"Identical display dimensions
Selfie screen Neither offers selfie screen

Panasonic GM1 vs Pentax K-S1 Physical Comparison

If you are planning to carry your camera, you're going to have to factor its weight and volume. The Panasonic GM1 offers outer measurements of 99mm x 55mm x 30mm (3.9" x 2.2" x 1.2") accompanied by a weight of 204 grams (0.45 lbs) and the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") with a weight of 558 grams (1.23 lbs).

Analyze the Panasonic GM1 and Pentax K-S1 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have at that moment. Following is the front view dimensions comparison of the GM1 vs the K-S1.

Panasonic GM1 vs Pentax K-S1 size comparison

Factoring in dimensions and weight, the portability rating of the GM1 and K-S1 is 93 and 69 respectively.

Panasonic GM1 vs Pentax K-S1 top view buttons comparison

Panasonic GM1 vs Pentax K-S1 Sensor Comparison

More often than not, it is very difficult to visualize the difference between sensor sizing just by checking specs. The visual below may provide you a stronger sense of the sensor sizing in the GM1 and K-S1.

All in all, both of those cameras posses different resolutions and different sensor sizing. The GM1 having a tinier sensor is going to make getting shallower depth of field more difficult and the Pentax K-S1 will give you extra detail using its extra 4 Megapixels. Greater resolution will help you crop images somewhat more aggressively. The older GM1 is going to be behind in sensor tech.

Panasonic GM1 vs Pentax K-S1 sensor size comparison

Panasonic GM1 vs Pentax K-S1 Screen and ViewFinder

Panasonic GM1 vs Pentax K-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic GM1 Portrait photography features
Pentax K-S1 Portrait photography features
65
has manual focus
megapixel count good (16 megapixels)
sensor size is good (Four Thirds)
features face detect focusing
supports RAW files
can't use external flash
77
manual focus
resolution is good (20 megapixels)
decent sensor size (APS-C)
includes face detect focus
saves RAW files
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Street Comparison

Panasonic GM1 Street photography details
Pentax K-S1 Street photography details
77
sensor size is good (Four Thirds)
supports RAW files
supports focus by touch
lighter than average (204g)
great ISO range (25,600)
fixed screen
lack of image stabilization
73
has image stabilization (Sensor based)
decent sensor size (APS-C)
saves RAW files
lighter than average (558 grams)
very good high ISO (51,200)
screen is fixed
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Sports Comparison

Panasonic GM1 Sports photography highlights
Pentax K-S1 Sports photography highlights
48
quiet shooting (1/16,000 seconds)
megapixel count good (16 megapixels)
sensor size is good (Four Thirds)
features tracking focus
max shutter speed is low (1/500 seconds)
continuous shooting slow (5.0 frames per second)
lack of image stabilization
bad battery pack (230 shots)
doesn't have phase detect AF
69
great max shutter speed (1/6,000 seconds)
has image stabilization (Sensor based)
resolution is good (20 megapixels)
decent sensor size (APS-C)
includes tracking focus
comes with phase detect auto focus
painfully slow continuous shooting (5.4 fps)
low battery (410 CIPA)
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Travel Comparison

Panasonic GM1 as a Travel photography camera
Pentax K-S1 as a Travel photography camera
74
lighter than average (204 grams)
supports focus by touch
megapixel count good (16 megapixels)
built-in flash
bad battery pack (230 shots)
does not posses selfie friendly display
60
lighter than average (558 grams)
resolution is good (20MP)
flash built-in
lack of Timelapse recording
low battery (410 per charge)
display isn't selfie friendly
Photography Glossary

Landscape Comparison

Panasonic GM1 Landscape photography factors
Pentax K-S1 Landscape photography factors
69
has manual focus
switch lenses (Micro Four Thirds mount)
screen is a good size (3 inches)
megapixel count good (16MP)
sensor size is good (Four Thirds)
great ISO range (25,600)
supports RAW files
lack of image stabilization
bad battery pack (230 shots)
73
manual focus
interchangeable lenses (Pentax KAF2 mount)
screen size is good (3 inch)
has image stabilization (Sensor based)
resolution is good (20MP)
decent sensor size (APS-C)
no anti-alias filter
very good high ISO (51,200)
saves RAW files
low battery (410 shots)
lack of Timelapse recording
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Vlogging Comparison

Panasonic GM1 Vlogging highlights
Pentax K-S1 Vlogging highlights
35
built-in touchscreen
features face detect focusing
video res high (1920 x 1080 resolution)
lighter than average (204 grams)
does not posses selfie friendly display
lack of image stabilization
doesn't have mic support
33
has image stabilization (Sensor based)
includes face detect focus
high video quality (1920 x 1080 pixels)
lighter than average (558g)
display isn't selfie friendly
lack of microphone port
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Panasonic GM1 vs Pentax K-S1 Specifications

Detailed spec comparison table for Panasonic GM1 and Pentax K-S1
 Panasonic Lumix DMC-GM1Pentax K-S1
General Information
Company Panasonic Pentax
Model Panasonic Lumix DMC-GM1 Pentax K-S1
Type Entry-Level Mirrorless Advanced DSLR
Announced 2013-12-19 2014-08-27
Body design Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Processor Chip - Prime MII
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.5 x 15.6mm
Sensor area 224.9mm² 366.6mm²
Sensor resolution 16MP 20MP
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 4592 x 3448 5472 x 3648
Max native ISO 25600 51200
Lowest native ISO 200 100
RAW support
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points 23 11
Lens
Lens mounting type Micro Four Thirds Pentax KAF2
Total lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Display type Fixed Type Fixed Type
Display size 3 inch 3 inch
Display resolution 1,036k dot 921k dot
Selfie friendly
Liveview
Touch capability
Display tech TFT Color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder None Optical (pentaprism)
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.64x
Features
Slowest shutter speed 60 seconds 30 seconds
Maximum shutter speed 1/500 seconds 1/6000 seconds
Maximum quiet shutter speed 1/16000 seconds -
Continuous shooting speed 5.0fps 5.4fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash range 4.00 m 10.00 m (at ISO 100)
Flash options Auto, On, Off, Red-Eye, Slow Sync Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual
External flash
AE bracketing
WB bracketing
Maximum flash sync 1/50 seconds -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60i, 50i, 24p), 1280 x 720p (60p, 50p), 640 x 480 (30p, 25p) 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps)
Max video resolution 1920x1080 1920x1080
Video data format MPEG-4, AVCHD H.264
Microphone jack
Headphone jack
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Optional
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 204 grams (0.45 lb) 558 grams (1.23 lb)
Dimensions 99 x 55 x 30mm (3.9" x 2.2" x 1.2") 121 x 93 x 70mm (4.8" x 3.7" x 2.8")
DXO scores
DXO All around score 66 78
DXO Color Depth score 22.3 23.5
DXO Dynamic range score 11.7 13.0
DXO Low light score 660 1061
Other
Battery life 230 shots 410 shots
Style of battery Battery Pack Battery Pack
Battery model - D-LI109
Self timer Yes (2 or 10 sec, 10 sec (3 images)) Yes ( 2 or 12 seconds)
Time lapse shooting
Storage media SD/SDHC/SDXC SD/SDHC/SDXC
Storage slots One One
Retail pricing $750 $339