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Panasonic G3 vs Pentax K100D

Portability
83
Imaging
51
Features
62
Overall
55
Panasonic Lumix DMC-G3 front
 
Pentax K100D front
Portability
64
Imaging
45
Features
36
Overall
41

Panasonic G3 vs Pentax K100D Key Specs

Panasonic G3
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 160 - 6400
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 336g - 115 x 84 x 47mm
  • Introduced July 2011
  • Earlier Model is Panasonic G2
  • Updated by Panasonic G5
Pentax K100D
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF Mount
  • 660g - 129 x 93 x 70mm
  • Released December 2006
  • Updated by Pentax K100D S
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Panasonic G3 vs Pentax K100D Overview

On this page, we are reviewing the Panasonic G3 versus Pentax K100D, one being a Entry-Level Mirrorless and the other is a Entry-Level DSLR by competitors Panasonic and Pentax. There exists a big gap among the image resolutions of the G3 (16MP) and K100D (6MP) and the G3 (Four Thirds) and K100D (APS-C) boast different sensor size.

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The G3 was revealed 4 years later than the K100D and that is a fairly big gap as far as camera technology is concerned. Both of these cameras have different body design with the Panasonic G3 being a SLR-style mirrorless camera and the Pentax K100D being a Compact SLR camera.

Before diving into a complete comparison, here is a short highlight of how the G3 scores against the K100D when considering portability, imaging, features and an overall rating.

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Reasons to pick Panasonic G3 over the Pentax K100D

 G3 K100D 
ReleasedJuly 2011December 2006Fresher by 57 months
Display typeFully ArticulatedFixed Fully Articulating display
Display dimensions3"2.5"Larger display (+0.5")
Display resolution460k210kClearer display (+250k dot)
Selfie screen Take selfies
Touch friendly display Easily navigate

Reasons to pick Pentax K100D over the Panasonic G3

 K100D G3 

Common features in the Panasonic G3 and Pentax K100D

 G3 K100D 
Focus manually Very accurate focus

Panasonic G3 vs Pentax K100D Physical Comparison

If you are going to carry your camera, you need to factor in its weight and proportions. The Panasonic G3 offers exterior dimensions of 115mm x 84mm x 47mm (4.5" x 3.3" x 1.9") accompanied by a weight of 336 grams (0.74 lbs) whilst the Pentax K100D has measurements of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") and a weight of 660 grams (1.46 lbs).

Check out the Panasonic G3 versus Pentax K100D in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilising at that moment. Underneath is a front view measurement comparison of the G3 compared to the K100D.

Panasonic G3 vs Pentax K100D size comparison

Factoring in dimensions and weight, the portability score of the G3 and K100D is 83 and 64 respectively.

Panasonic G3 vs Pentax K100D top view buttons comparison

Panasonic G3 vs Pentax K100D Sensor Comparison

Quite often, its difficult to picture the difference in sensor sizing only by viewing a spec sheet. The photograph underneath may provide you a more clear sense of the sensor dimensions in the G3 and K100D.

As you can see, each of these cameras have different megapixel count and different sensor sizing. The G3 using its smaller sensor is going to make achieving shallow depth of field more challenging and the Panasonic G3 will result in extra detail because of its extra 10 Megapixels. Greater resolution will allow you to crop photos a bit more aggressively. The newer G3 should have an advantage with regard to sensor innovation.

Panasonic G3 vs Pentax K100D sensor size comparison

Panasonic G3 vs Pentax K100D Screen and ViewFinder

Panasonic G3 vs Pentax K100D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic G3 as a Portrait photography camera
Pentax K100D as a Portrait photography camera
70
focusing manually
sensor resolution is decent (16MP)
nice sensor size (Four Thirds)
comes with face detect focus
supports RAW formats
51
focusing manually
nice sensor size (APS-C)
delivers RAW formats
no liveview feature
low megapixels (6MP)
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Street Comparison

Street photography with Panasonic G3
Street photography with Pentax K100D
75
screen can move to multiple angles
nice sensor size (Four Thirds)
supports RAW formats
includes touch focus
no image stabilization
58
has image stabilization (Sensor based)
nice sensor size (APS-C)
delivers RAW formats
screen does not articulate
heavier than average (660g)
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Sports Comparison

Panasonic G3 Sports photography details
Pentax K100D Sports photography details
46
sensor resolution is decent (16 megapixels)
nice sensor size (Four Thirds)
comes with tracking focus
painfully slow continuous shooting (4.0 fps)
no image stabilization
terrible battery pack (270 CIPA)
lack of phase detect auto focus
47
has image stabilization (Sensor based)
nice sensor size (APS-C)
supports phase detect autofocus
no liveview feature
max frames per second low (3.0 frames per second)
low megapixels (6 megapixels)
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Travel Comparison

Panasonic G3 Travel photography info
Pentax K100D Travel photography info
70
includes touch focus
sensor resolution is decent (16MP)
built-in flash
selfie friendly screen
does not have Timelapse function
terrible battery pack (270 CIPA)
42
has built in flash
does not have Time Lapse recording
heavier than average (660 grams)
low megapixels (6 megapixels)
does not offer selfie friendly screen
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Landscape Comparison

Panasonic G3 as a Landscape photography camera
Pentax K100D as a Landscape photography camera
62
focusing manually
change lenses (Micro Four Thirds mount)
decent sized screen (3 inches)
sensor resolution is decent (16MP)
nice sensor size (Four Thirds)
supports RAW formats
no image stabilization
terrible battery pack (270 CIPA)
does not have Timelapse function
52
focusing manually
change lenses (Pentax KAF mount)
has image stabilization (Sensor based)
nice sensor size (APS-C)
delivers RAW formats
screen is somewhat small (2.5 inch)
no liveview feature
low megapixels (6 megapixels)
does not have Time Lapse recording
Photography Glossary

Vlogging Comparison

Panasonic G3 Vlogging info
Pentax K100D Vlogging info
70
selfie friendly screen
touchscreen capability
comes with face detect focus
video resolution high (1920 x 1080 resolution)
no image stabilization
does not have microphone port
9
no video shooting
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Panasonic G3 vs Pentax K100D Specifications

Detailed spec comparison table for Panasonic G3 and Pentax K100D
 Panasonic Lumix DMC-G3Pentax K100D
General Information
Manufacturer Panasonic Pentax
Model type Panasonic Lumix DMC-G3 Pentax K100D
Category Entry-Level Mirrorless Entry-Level DSLR
Introduced 2011-07-11 2006-12-03
Physical type SLR-style mirrorless Compact SLR
Sensor Information
Chip Venus Engine FHD -
Sensor type CMOS CCD
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.5 x 15.7mm
Sensor area 224.9mm² 369.0mm²
Sensor resolution 16 megapixels 6 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Peak resolution 4592 x 3448 3008 x 2008
Highest native ISO 6400 3200
Minimum native ISO 160 200
RAW images
Autofocusing
Manual focusing
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
Total focus points 23 11
Lens
Lens mount type Micro Four Thirds Pentax KAF
Amount of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Type of screen Fully Articulated Fixed Type
Screen diagonal 3 inch 2.5 inch
Resolution of screen 460k dots 210k dots
Selfie friendly
Liveview
Touch friendly
Screen technology TFT Color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder Electronic Optical (pentamirror)
Viewfinder resolution 1,440k dots -
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.7x 0.57x
Features
Minimum shutter speed 60 seconds 30 seconds
Fastest shutter speed 1/4000 seconds 1/4000 seconds
Continuous shutter rate 4.0fps 3.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash distance 11.00 m -
Flash settings Auto, On, Off, Red-Eye, Slow Sync Auto, On, Off, Red-eye reduction
Hot shoe
AE bracketing
White balance bracketing
Fastest flash synchronize 1/160 seconds 1/180 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60fps) 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30fps)) -
Highest video resolution 1920x1080 None
Video format AVCHD, Motion JPEG -
Mic support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 336 grams (0.74 lbs) 660 grams (1.46 lbs)
Physical dimensions 115 x 84 x 47mm (4.5" x 3.3" x 1.9") 129 x 93 x 70mm (5.1" x 3.7" x 2.8")
DXO scores
DXO Overall rating 56 not tested
DXO Color Depth rating 21.0 not tested
DXO Dynamic range rating 10.6 not tested
DXO Low light rating 667 not tested
Other
Battery life 270 pictures -
Form of battery Battery Pack -
Battery ID - 4 x AA
Self timer Yes (2 or 10 sec) Yes (2 or 12 sec)
Time lapse recording
Storage type SD/SDHC/SDXC SD/MMC card
Card slots 1 1
Launch price $500 $0