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Panasonic GF1 vs Pentax K-x

Portability
85
Imaging
47
Features
47
Overall
47
Panasonic Lumix DMC-GF1 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Panasonic GF1 vs Pentax K-x Key Specs

Panasonic GF1
(Full Review)
  • 12MP - Four Thirds Sensor
  • 3" Fixed Display
  • ISO 100 - 3200
  • 1280 x 720 video
  • Micro Four Thirds Mount
  • 385g - 119 x 71 x 36mm
  • Introduced October 2009
  • Renewed by Panasonic GF2
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Boost to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Introduced December 2009
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Panasonic GF1 vs Pentax K-x Overview

On this page, we will be analyzing the Panasonic GF1 vs Pentax K-x, one being a Entry-Level Mirrorless and the latter is a Entry-Level DSLR by competitors Panasonic and Pentax. The image resolution of the GF1 (12MP) and the K-x (12MP) is relatively well matched but the GF1 (Four Thirds) and K-x (APS-C) have totally different sensor sizes.

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The GF1 was manufactured 2 months prior to the K-x and they are both of a similar generation. Both the cameras have different body design with the Panasonic GF1 being a Rangefinder-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before getting into a in depth comparison, here is a simple view of how the GF1 scores vs the K-x with regards to portability, imaging, features and an overall grade.

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Reasons to pick Panasonic GF1 over the Pentax K-x

 GF1 K-x 
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution460k230kClearer screen (+230k dot)

Reasons to pick Pentax K-x over the Panasonic GF1

 K-x GF1 

Common features in the Panasonic GF1 and Pentax K-x

 GF1 K-x 
IntroducedOctober 2009December 2009Similar generation
Manual focus More precise focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Absent selfie screen
Touch friendly screen Absent Touch friendly screen

Panasonic GF1 vs Pentax K-x Physical Comparison

When you are going to lug around your camera often, you should take into account its weight and dimensions. The Panasonic GF1 comes with exterior measurements of 119mm x 71mm x 36mm (4.7" x 2.8" x 1.4") accompanied by a weight of 385 grams (0.85 lbs) while the Pentax K-x has dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs).

Analyze the Panasonic GF1 vs Pentax K-x in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are utilizing during that time. Below is a front view physical size comparison of the GF1 versus the K-x.

Panasonic GF1 vs Pentax K-x size comparison

Using dimensions and weight, the portability grade of the GF1 and K-x is 85 and 69 respectively.

Panasonic GF1 vs Pentax K-x top view buttons comparison

Panasonic GF1 vs Pentax K-x Sensor Comparison

Typically, it's hard to envision the gap between sensor measurements simply by reading through a spec sheet. The graphic below will help give you a clearer sense of the sensor sizing in the GF1 and K-x.

As you can see, both cameras have the same megapixels albeit not the same sensor measurements. The GF1 uses the tinier sensor which should make obtaining shallow depth of field more difficult.

Panasonic GF1 vs Pentax K-x sensor size comparison

Panasonic GF1 vs Pentax K-x Screen and ViewFinder

Panasonic GF1 vs Pentax K-x Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Panasonic GF1 as a Portrait photography camera
Pentax K-x as a Portrait photography camera
60
you can focus manually
good sensor size (Four Thirds)
comes with face detection focus
delivers RAW formats
low MP (12 megapixels)
63
focusing manually
nice sensor size (APS-C)
features face detection focusing
exports RAW files
MP count low (12 megapixels)
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Street Comparison

Panasonic GF1 Street photography information
Pentax K-x Street photography information
64
good sensor size (Four Thirds)
delivers RAW formats
no moving screen
no image stabilization
67
image stabilization (Sensor based)
nice sensor size (APS-C)
exports RAW files
screen does not articulate
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Sports Comparison

Panasonic GF1 as a Sports photography camera
Pentax K-x as a Sports photography camera
44
good sensor size (Four Thirds)
comes with tracking autofocus
better than average battery life (380 per charge)
slow frames per second (3.0 frames per second)
no image stabilization
low MP (12MP)
does not have phase detect auto focus
61
great max shutter speed (1/6,000 seconds)
image stabilization (Sensor based)
nice sensor size (APS-C)
great battery power (1,900 CIPA)
sensor has phase detect AF
very slow continuous shooting (5.0 fps)
MP count low (12MP)
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Travel Comparison

Panasonic GF1 Travel photography details
Pentax K-x Travel photography details
59
better than average battery life (380 shots)
built-in flash
lack of Timelapse mode
low MP (12MP)
does not have selfie friendly display
54
great battery power (1,900 CIPA)
built-in flash
missing Timelapse function
MP count low (12 megapixels)
display isn't selfie friendly
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Landscape Comparison

Panasonic GF1 Landscape photography features
Pentax K-x Landscape photography features
60
you can focus manually
switch lenses (Micro Four Thirds mount)
screen size is good (3 inch)
good sensor size (Four Thirds)
delivers RAW formats
better than average battery life (380 CIPA)
no image stabilization
low MP (12 megapixels)
lack of Timelapse mode
61
focusing manually
switch lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
nice sensor size (APS-C)
exports RAW files
great battery power (1,900 shots)
small screen (2.7 inches)
MP count low (12 megapixels)
missing Timelapse function
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Vlogging Comparison

Panasonic GF1 Vlogging factors
Pentax K-x Vlogging factors
25
comes with face detection focus
does not have selfie friendly display
no image stabilization
video res low (1280 x 720 resolution)
lack of external microphone port
27
image stabilization (Sensor based)
features face detection focusing
display isn't selfie friendly
video res low (1280 x 720 pxls)
missing external microphone support
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Panasonic GF1 vs Pentax K-x Specifications

Detailed spec comparison table for Panasonic GF1 and Pentax K-x
 Panasonic Lumix DMC-GF1Pentax K-x
General Information
Make Panasonic Pentax
Model Panasonic Lumix DMC-GF1 Pentax K-x
Category Entry-Level Mirrorless Entry-Level DSLR
Introduced 2009-10-14 2009-12-23
Physical type Rangefinder-style mirrorless Compact SLR
Sensor Information
Powered by Venus Engine HD Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.6 x 15.8mm
Sensor surface area 224.9mm² 372.9mm²
Sensor resolution 12MP 12MP
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 4000 x 3000 4288 x 2848
Max native ISO 3200 6400
Max boosted ISO - 12800
Min native ISO 100 100
RAW photos
Autofocusing
Focus manually
Touch focus
Continuous AF
AF single
Tracking AF
AF selectice
Center weighted AF
AF multi area
Live view AF
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" 2.7"
Display resolution 460k dots 230k dots
Selfie friendly
Liveview
Touch functionality
Display tech TFT Color LCD with wide-viewing angle TFT LCD monitor
Viewfinder Information
Viewfinder None Optical (pentamirror)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.57x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/4000s 1/6000s
Continuous shooting rate 3.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash range 6.00 m 16.00 m
Flash options Auto, On, Off, Red-Eye, Slow Sync Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
AE bracketing
White balance bracketing
Highest flash synchronize 1/160s 1/180s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1280 x 720 (30 fps), 848 x 480 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) 1280 x 720 (24 fps), 640 x 416 (24 fps)
Max video resolution 1280x720 1280x720
Video data format AVCHD Lite Motion JPEG
Microphone 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
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 385 gr (0.85 lb) 580 gr (1.28 lb)
Physical dimensions 119 x 71 x 36mm (4.7" x 2.8" x 1.4") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around score 54 72
DXO Color Depth score 21.2 22.8
DXO Dynamic range score 10.3 12.5
DXO Low light score 513 811
Other
Battery life 380 photographs 1900 photographs
Battery style Battery Pack Battery Pack
Battery model - 4 x AA
Self timer Yes (2 or 10 sec, 10 sec (3 images)) Yes (2 or 12 sec)
Time lapse shooting
Storage type SD/SDHC/MMC SD/SDHC card
Card slots One One
Retail pricing $400 $600