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Panasonic G9 vs Pentax S1

Portability
62
Imaging
60
Features
90
Overall
72
Panasonic Lumix DC-G9 front
 
Pentax Optio S1 front
Portability
93
Imaging
37
Features
31
Overall
34

Panasonic G9 vs Pentax S1 Key Specs

Panasonic G9
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 658g - 137 x 97 x 92mm
  • Released November 2017
Pentax S1
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-140mm (F3.5-5.5) lens
  • 157g - 114 x 58 x 28mm
  • Announced March 2011
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Panasonic G9 vs Pentax S1 Overview

The following is a thorough comparison of the Panasonic G9 and Pentax S1, former is a Pro Mirrorless while the other is a Small Sensor Compact by brands Panasonic and Pentax. There is a substantial difference among the sensor resolutions of the G9 (20MP) and S1 (14MP) and the G9 (Four Thirds) and S1 (1/2.3") come with totally different sensor measurements.

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The G9 was brought out 6 years after the S1 which is a fairly big difference as far as camera tech is concerned. Both cameras come with different body type with the Panasonic G9 being a SLR-style mirrorless camera and the Pentax S1 being a Compact camera.

Before diving in to a step-by-step comparison, below is a concise introduction of how the G9 scores versus the S1 for portability, imaging, features and an overall mark.

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Reasons to pick Panasonic G9 over the Pentax S1

 G9 S1 
AnnouncedNovember 2017March 2011Newer by 82 months
Display typeFully ArticulatedFixed Fully Articulating display
Display dimension3"2.7"Larger display (+0.3")
Display resolution1040k230kCrisper display (+810k dot)
Selfie screen Easy selfies
Touch friendly display Easily navigate

Reasons to pick Pentax S1 over the Panasonic G9

 S1 G9 

Common features in the Panasonic G9 and Pentax S1

 G9 S1 
Manual focus More exact focusing

Panasonic G9 vs Pentax S1 Physical Comparison

For those who are looking to travel with your camera frequently, you need to think about its weight and dimensions. The Panasonic G9 provides exterior dimensions of 137mm x 97mm x 92mm (5.4" x 3.8" x 3.6") with a weight of 658 grams (1.45 lbs) whilst the Pentax S1 has dimensions of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") accompanied by a weight of 157 grams (0.35 lbs).

Look at the Panasonic G9 and Pentax S1 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will change depending on the lens you have attached at the time. The following is the front view sizing comparison of the G9 compared to the S1.

Panasonic G9 vs Pentax S1 size comparison

Looking at size and weight, the portability rating of the G9 and S1 is 62 and 93 respectively.

Panasonic G9 vs Pentax S1 top view buttons comparison

Panasonic G9 vs Pentax S1 Sensor Comparison

In many cases, it can be difficult to visualise the contrast in sensor dimensions just by going through a spec sheet. The picture below may offer you a better sense of the sensor dimensions in the G9 and S1.

Clearly, both of those cameras have got different megapixels and different sensor dimensions. The G9 due to its larger sensor will make getting shallow depth of field easier and the Panasonic G9 will provide greater detail having its extra 6 Megapixels. Greater resolution will let you crop photos much more aggressively. The newer G9 is going to have a benefit in sensor technology.

Panasonic G9 vs Pentax S1 sensor size comparison

Panasonic G9 vs Pentax S1 Screen and ViewFinder

Panasonic G9 vs Pentax S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Panasonic G9
Portrait photography with Pentax S1
76
has manual focus
megapixel count decent (20 megapixels)
sensor size is decent (Four Thirds)
comes with face detection focus
supports RAW formats
35
has manual focus
good MP (14 megapixels)
no manual control
external flash not possible
sensor is tiny (1/2.3")
doesn't have RAW support
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Street Comparison

Panasonic G9 Street photography advice
Pentax S1 Street photography advice
75
screen can move to multiple angles
built in image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
supports RAW formats
supports focus via touch
environment sealing
very good ISO range (25,600)
56
image stabilization (Sensor-shift)
no articulating screen
sensor is tiny (1/2.3")
doesn't have RAW support
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Sports Comparison

Panasonic G9 Sports photography advice
Pentax S1 Sports photography advice
70
max shutter speed is good (1/8,000 seconds)
silent shutter (1/32,000 seconds)
fast continuous shooting (20.0 frames/s)
built in image stabilization (Sensor based 5-axis)
megapixel count decent (20MP)
sensor size is decent (Four Thirds)
comes with tracking autofocus
environment sealing
terrible battery pack (400 per charge)
doesn't have phase detect auto focus
39
image stabilization (Sensor-shift)
good MP (14MP)
provides tracking focus
painfully slow continuous shooting (1.0 frames/s)
no shutter priority
sensor is tiny (1/2.3")
doesn't have phase detect auto focus
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Travel Comparison

Panasonic G9 Travel photography advice
Pentax S1 Travel photography advice
70
environment sealing
connects via bluetooth
supports focus via touch
megapixel count decent (20 megapixels)
selfie friendly display
terrible battery pack (400 shots)
64
good MP (14 megapixels)
has built in flash
relatively wide (28mm)
missing Timelapse function
display is not selfie friendly
sluggish max aperture (f3.5)
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Landscape Comparison

Panasonic G9 Landscape photography info
Pentax S1 Landscape photography info
76
has manual focus
change lenses (Micro Four Thirds mount)
screen size is decent (3")
built in image stabilization (Sensor based 5-axis)
megapixel count decent (20MP)
sensor size is decent (Four Thirds)
doesnt have anti-alias filter
very good ISO range (25,600)
supports RAW formats
environment sealing
has double storage slots
terrible battery pack (400 CIPA)
42
has manual focus
relatively wide (28mm)
image stabilization (Sensor-shift)
good MP (14 megapixels)
lens is fixed (fixed lens mount)
sluggish max aperture (f3.5)
small screen (2.7 inch)
no manual control
sensor is tiny (1/2.3")
doesn't have RAW support
missing Timelapse function
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Vlogging Comparison

Panasonic G9 Vlogging features
Pentax S1 Vlogging features
76
selfie friendly display
touchscreen functionality
built in image stabilization (Sensor based 5-axis)
comes with face detection focus
high quality video (3840 x 2160 pxls)
comes with external microphone port
28
relatively wide (28mm)
image stabilization (Sensor-shift)
sluggish max aperture (f3.5)
display is not selfie friendly
low res video (1280 x 720 resolution)
missing microphone socket
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Panasonic G9 vs Pentax S1 Specifications

Detailed spec comparison table for Panasonic G9 and Pentax S1
 Panasonic Lumix DC-G9Pentax Optio S1
General Information
Brand Panasonic Pentax
Model type Panasonic Lumix DC-G9 Pentax Optio S1
Class Pro Mirrorless Small Sensor Compact
Released 2017-11-08 2011-03-02
Physical type SLR-style mirrorless Compact
Sensor Information
Sensor type CMOS CCD
Sensor size Four Thirds 1/2.3"
Sensor measurements 17.3 x 13mm 6.17 x 4.55mm
Sensor surface area 224.9mm² 28.1mm²
Sensor resolution 20MP 14MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 4:3 and 16:9
Max resolution 5184 x 3888 4288 x 3216
Max native ISO 25600 6400
Min native ISO 200 80
RAW data
Min enhanced ISO 100 -
Autofocusing
Focus manually
AF touch
Continuous AF
Single AF
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 225 9
Lens
Lens mount type Micro Four Thirds fixed lens
Lens zoom range - 28-140mm (5.0x)
Largest aperture - f/3.5-5.5
Macro focusing range - 1cm
Total lenses 107 -
Focal length multiplier 2.1 5.8
Screen
Display type Fully Articulated Fixed Type
Display diagonal 3 inches 2.7 inches
Resolution of display 1,040 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch function
Display tech - TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 3,680 thousand dots -
Viewfinder coverage 100% -
Viewfinder magnification 0.83x -
Features
Min shutter speed 60s 4s
Max shutter speed 1/8000s 1/1500s
Max quiet shutter speed 1/32000s -
Continuous shutter rate 20.0 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Custom WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 3.90 m
Flash modes Auto, Auto/Red-eye Reduction, Forced On, Forced On/Red-eye Reduction, Slow Sync., Slow Sync./Red-eye Reduction, Forced Off Auto, On, Off, Red-eye, Soft
Hot shoe
Auto exposure bracketing
White balance bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 60p / 150 Mbps, MP4, H.264, Linear PCM 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Max video resolution 3840x2160 1280x720
Video data format MPEG-4, AVCHD, H.264 Motion JPEG
Microphone port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 658 grams (1.45 lb) 157 grams (0.35 lb)
Dimensions 137 x 97 x 92mm (5.4" x 3.8" x 3.6") 114 x 58 x 28mm (4.5" x 2.3" x 1.1")
DXO scores
DXO Overall rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery life 400 pictures 260 pictures
Battery type Battery Pack Battery Pack
Battery ID DMW-BLF19 D-LI92
Self timer Yes Yes (2 or 10 sec)
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC slots (UHS-II supported) SD/SDHC/SDXC, Internal
Card slots Two Single
Retail cost $1,500 $174