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Panasonic S1 vs Pentax K-x

Portability
96
Imaging
35
Features
21
Overall
29
Panasonic Lumix DMC-S1 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Panasonic S1 vs Pentax K-x Key Specs

Panasonic S1
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400
  • Optical Image Stabilization
  • 1280 x 720 video
  • 28-112mm (F3.1-5.6) lens
  • 117g - 99 x 59 x 21mm
  • Announced January 2011
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Raise to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Revealed December 2009
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Panasonic S1 vs Pentax K-x Overview

Its time to look more closely at the Panasonic S1 and Pentax K-x, former is a Small Sensor Compact while the latter is a Entry-Level DSLR by rivals Panasonic and Pentax. The resolution of the S1 (12MP) and the K-x (12MP) is relatively similar but the S1 (1/2.3") and K-x (APS-C) posses totally different sensor sizes.

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The S1 was revealed 13 months after the K-x which makes them a generation away from one another. Both cameras feature different body design with the Panasonic S1 being a Compact camera and the Pentax K-x being a Compact SLR camera.

Before diving right into a in depth comparison, here is a concise introduction of how the S1 matches up against the K-x in relation to portability, imaging, features and an overall mark.

Photography Glossary
	
	

Reasons to pick Panasonic S1 over the Pentax K-x

 S1 K-x 
RevealedJanuary 2011December 2009Newer by 13 months

Reasons to pick Pentax K-x over the Panasonic S1

 K-x S1 
Focus manually Very precise focus

Common features in the Panasonic S1 and Pentax K-x

 S1 K-x 
Screen typeFixed Fixed Fixed screen
Screen size2.7"2.7"Same screen dimensions
Screen resolution230k230kExact same screen resolution
Selfie screen Missing selfie screen
Touch screen Missing Touch screen

Panasonic S1 vs Pentax K-x Physical Comparison

If you are aiming to travel with your camera regularly, you have to take into account its weight and dimensions. The Panasonic S1 enjoys physical measurements of 99mm x 59mm x 21mm (3.9" x 2.3" x 0.8") and a weight of 117 grams (0.26 lbs) while the Pentax K-x has dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs).

See the Panasonic S1 and Pentax K-x in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will differ dependant on the lens you are utilising at that time. Here is a front view proportions comparison of the S1 vs the K-x.

Panasonic S1 vs Pentax K-x size comparison

Taking into account dimensions and weight, the portability rating of the S1 and K-x is 96 and 69 respectively.

Panasonic S1 vs Pentax K-x top view buttons comparison

Panasonic S1 vs Pentax K-x Sensor Comparison

Typically, it's difficult to envision the contrast between sensor dimensions purely by going over specifications. The image below will help give you a clearer sense of the sensor sizing in the S1 and K-x.

Plainly, each of the cameras come with the identical megapixels albeit not the same sensor dimensions. The S1 offers the tinier sensor which will make achieving shallow depth of field more difficult. The fresher S1 will have an edge when it comes to sensor technology.

Panasonic S1 vs Pentax K-x sensor size comparison

Panasonic S1 vs Pentax K-x Screen and ViewFinder

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

Portrait Comparison

Panasonic S1 Portrait photography features
Pentax K-x Portrait photography features
21
no manual focus
manual exposure not available
cannot use external flash
sensor resolution low (12 megapixels)
small sensor (1/2.3")
lacks RAW support
63
manual focus
sensor size is decent (APS-C)
supports face detection autofocus
exports RAW formats
low megapixels (12MP)
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Street Comparison

Panasonic S1 Street photography details
Pentax K-x Street photography details
63
built in image stabilization (Optical)
lighter than average in class (117g)
screen does not articulate
small sensor (1/2.3")
lacks RAW support
67
image stabilization (Sensor based)
sensor size is decent (APS-C)
exports RAW formats
screen is fixed
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Sports Comparison

Panasonic S1 as a Sports photography camera
Pentax K-x as a Sports photography camera
27
built in image stabilization (Optical)
no shutter priority mode
sensor resolution low (12 megapixels)
small sensor (1/2.3")
lacks phase detect AF
61
maximum shutter speed is high (1/6,000 seconds)
image stabilization (Sensor based)
sensor size is decent (APS-C)
great battery power (1,900 shots)
comes with phase detect autofocus
painfully slow continuous shooting (5.0 fps)
low megapixels (12 megapixels)
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Travel Comparison

Panasonic S1 as a Travel photography camera
Pentax K-x as a Travel photography camera
62
lighter than average in class (117 grams)
flash built-in
decently wide (28mm)
does not have Time Lapse function
sensor resolution low (12 megapixels)
does not offer selfie friendly display
somewhat slow maximum aperture (f3.1)
54
great battery power (1,900 per charge)
flash built-in
missing Time Lapse mode
low megapixels (12MP)
doesn't feature selfie friendly display
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Landscape Comparison

Panasonic S1 Landscape photography info
Pentax K-x Landscape photography info
32
decently wide (28mm)
built in image stabilization (Optical)
no manual focus
cannot switch lens (fixed lens mount)
somewhat slow maximum aperture (f3.1)
small screen (2.7 inch)
manual exposure not available
sensor resolution low (12 megapixels)
small sensor (1/2.3")
lacks RAW support
does not have Time Lapse function
61
manual focus
interchangeable lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is decent (APS-C)
exports RAW formats
great battery power (1,900 CIPA)
screen is small (2.7 inches)
low megapixels (12MP)
missing Time Lapse mode
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Vlogging Comparison

Panasonic S1 Vlogging highlights
Pentax K-x Vlogging highlights
31
decently wide (28mm)
built in image stabilization (Optical)
lighter than average in class (117 grams)
somewhat slow maximum aperture (f3.1)
does not offer selfie friendly display
low res video (1280 x 720 resolution)
does not have external mic socket
27
image stabilization (Sensor based)
supports face detection autofocus
doesn't feature selfie friendly display
low res video (1280 x 720 pixels)
missing external mic jack
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Panasonic S1 vs Pentax K-x Specifications

Detailed spec comparison table for Panasonic S1 and Pentax K-x
 Panasonic Lumix DMC-S1Pentax K-x
General Information
Brand Panasonic Pentax
Model type Panasonic Lumix DMC-S1 Pentax K-x
Category Small Sensor Compact Entry-Level DSLR
Announced 2011-01-05 2009-12-23
Body design Compact Compact SLR
Sensor Information
Chip Venus Engine IV Prime
Sensor type CCD CMOS
Sensor size 1/2.3" APS-C
Sensor dimensions 6.08 x 4.56mm 23.6 x 15.8mm
Sensor area 27.7mm² 372.9mm²
Sensor resolution 12 megapixel 12 megapixel
Anti alias filter
Aspect ratio 4:3, 3:2 and 16:9 3:2
Full resolution 4000 x 3000 4288 x 2848
Max native ISO 6400 6400
Max boosted ISO - 12800
Min native ISO 100 100
RAW files
Autofocusing
Focus manually
Touch focus
AF continuous
AF single
Tracking AF
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 11 11
Lens
Lens support fixed lens Pentax KAF2
Lens zoom range 28-112mm (4.0x) -
Maximal aperture f/3.1-5.6 -
Macro focusing distance 5cm -
Amount of lenses - 151
Crop factor 5.9 1.5
Screen
Display type Fixed Type Fixed Type
Display size 2.7 inches 2.7 inches
Resolution of display 230k dot 230k dot
Selfie friendly
Liveview
Touch function
Display technology TFT LCD TFT LCD monitor
Viewfinder Information
Viewfinder None Optical (pentamirror)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.57x
Features
Lowest shutter speed 8 secs 30 secs
Highest shutter speed 1/1600 secs 1/6000 secs
Continuous shooting speed - 5.0 frames per second
Shutter priority
Aperture priority
Manual exposure
Exposure compensation - Yes
Custom WB
Image stabilization
Inbuilt flash
Flash distance 3.30 m 16.00 m
Flash options Auto, On, Off, Red-Eye reduction Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
Hot shoe
Auto exposure bracketing
WB bracketing
Highest flash sync - 1/180 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1280 x 720 (30fps), 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 Motion JPEG Motion JPEG
Mic input
Headphone input
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 seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 117g (0.26 pounds) 580g (1.28 pounds)
Physical dimensions 99 x 59 x 21mm (3.9" x 2.3" x 0.8") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around rating not tested 72
DXO Color Depth rating not tested 22.8
DXO Dynamic range rating not tested 12.5
DXO Low light rating not tested 811
Other
Battery life 240 photographs 1900 photographs
Style of battery Battery Pack Battery Pack
Battery ID - 4 x AA
Self timer Yes (2 or 10 sec) Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC, Internal SD/SDHC card
Storage slots 1 1
Pricing at launch $269 $600