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Panasonic S1 vs Pentax K-x

Portability
54
Imaging
75
Features
84
Overall
78
Panasonic Lumix DC-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)
  • 24MP - Full frame Sensor
  • 3.2" Tilting Display
  • ISO 100 - 51200 (Boost to 204800)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 1021g - 149 x 110 x 97mm
  • Released February 2019
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400 (Increase to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Announced December 2009
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Panasonic S1 vs Pentax K-x Overview

Here is a extensive comparison of the Panasonic S1 versus Pentax K-x, former being a Pro Mirrorless while the other is a Entry-Level DSLR by competitors Panasonic and Pentax. There is a large difference among the image resolutions of the S1 (24MP) and K-x (12MP) and the S1 (Full frame) and K-x (APS-C) possess different sensor sizing.

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The S1 was manufactured 9 years later than the K-x and that is a fairly serious difference as far as camera tech is concerned. Both the cameras offer different body type with the Panasonic S1 being a SLR-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before delving straight into a complete comparison, below is a brief summary of how the S1 matches up vs the K-x in the way of portability, imaging, features and an overall rating.

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Reasons to pick Panasonic S1 over the Pentax K-x

 S1 K-x 
AnnouncedFebruary 2019December 2009Fresher by 111 months
Display typeTiltingFixed Tilting display
Display sizing3.2"2.7"Larger display (+0.5")
Display resolution2100k230kClearer display (+1870k dot)
Touch display Easily navigate

Reasons to pick Pentax K-x over the Panasonic S1

 K-x S1 

Common features in the Panasonic S1 and Pentax K-x

 S1 K-x 
Manual focus Dial accurate focusing
Selfie screen Neither comes with selfie screen

Panasonic S1 vs Pentax K-x Physical Comparison

In case you're intending to carry your camera frequently, you have to consider its weight and proportions. The Panasonic S1 comes with outside dimensions of 149mm x 110mm x 97mm (5.9" x 4.3" x 3.8") accompanied by a weight of 1021 grams (2.25 lbs) while the Pentax K-x has measurements of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") along with a weight of 580 grams (1.28 lbs).

Check out the Panasonic S1 versus Pentax K-x in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary based on the lens you have chosen at that moment. Here is the front view sizing comparison of the S1 vs the K-x.

Panasonic S1 vs Pentax K-x size comparison

Taking into consideration size and weight, the portability grade of the S1 and K-x is 54 and 69 respectively.

Panasonic S1 vs Pentax K-x top view buttons comparison

Panasonic S1 vs Pentax K-x Sensor Comparison

Often, it is very tough to picture the difference in sensor sizing purely by checking out specifications. The photograph here will offer you a better sense of the sensor sizes in the S1 and K-x.

To sum up, both of the cameras offer different megapixel count and different sensor sizing. The S1 due to its larger sensor is going to make getting shallow depth of field less difficult and the Panasonic S1 will produce greater detail due to its extra 12 Megapixels. Greater resolution can also make it easier to crop photos a little more aggressively. The more recent S1 should have a benefit in sensor tech.

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

Portrait photography with Panasonic S1
Portrait photography with Pentax K-x
85
manual focus
above average flash sync (1/320s)
resolution is good (24 megapixels)
sensor size is large (Full frame)
comes with face detection autofocus
delivers RAW formats
63
focusing manually
good sensor size (APS-C)
comes with face detect focus
exports RAW formats
low megapixels (12MP)
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Street Comparison

Panasonic S1 Street photography features
Pentax K-x Street photography features
70
screen tilts up and down
image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
delivers RAW formats
features touch to focus
weather sealing
very good high ISO (51,200)
heavier than competitors in class (1,021g)
67
image stabilization (Sensor based)
good sensor size (APS-C)
exports RAW formats
screen is fixed
Photography Glossary

Sports Comparison

Sports photography with Panasonic S1
Sports photography with Pentax K-x
76
high shutter speed (1/8,000s)
quiet shooting (1/8,000s)
image stabilization (Sensor based 5-axis)
resolution is good (24 megapixels)
sensor size is large (Full frame)
comes with tracking autofocus
weather sealing
not so great battery life (380 shots)
doesn't have phase detect autofocus
61
maximum shutter speed is high (1/6,000 seconds)
image stabilization (Sensor based)
good sensor size (APS-C)
good battery power (1,900 per charge)
comes with phase detect auto focus
slow continuous shooting (5.0 frames/s)
low megapixels (12MP)
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Travel Comparison

Travel photography with Panasonic S1
Travel photography with Pentax K-x
59
weather sealing
connects via bluetooth
features touch to focus
resolution is good (24MP)
not so great battery life (380 CIPA)
heavier than competitors in class (1,021 grams)
does not feature selfie friendly display
54
good battery power (1,900 shots)
has built in flash
does not have Time Lapse function
low megapixels (12 megapixels)
display is not selfie friendly
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Landscape Comparison

Panasonic S1 Landscape photography details
Pentax K-x Landscape photography details
81
manual focus
interchangeable lenses (Leica L mount)
good sized screen (3.2 inch)
image stabilization (Sensor based 5-axis)
resolution is good (24 megapixels)
sensor size is large (Full frame)
doesnt have low pass filter
very good high ISO (51,200)
delivers RAW formats
weather sealing
has double storage slots
not so great battery life (380 CIPA)
61
focusing manually
interchangeable lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
good sensor size (APS-C)
exports RAW formats
good battery power (1,900 CIPA)
tiny screen (2.7 inches)
low megapixels (12 megapixels)
does not have Time Lapse function
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Vlogging Comparison

Panasonic S1 Vlogging features
Pentax K-x Vlogging features
32
touchscreen functionality
image stabilization (Sensor based 5-axis)
comes with face detection autofocus
high quality video (3840 x 2160 resolution)
comes with external mic port
does not feature selfie friendly display
heavier than competitors in class (1,021 grams)
27
image stabilization (Sensor based)
comes with face detect focus
display is not selfie friendly
video res low (1280 x 720 pixels)
does not have mic port
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Panasonic S1 vs Pentax K-x Specifications

Detailed spec comparison table for Panasonic S1 and Pentax K-x
 Panasonic Lumix DC-S1Pentax K-x
General Information
Company Panasonic Pentax
Model type Panasonic Lumix DC-S1 Pentax K-x
Category Pro Mirrorless Entry-Level DSLR
Released 2019-02-01 2009-12-23
Body design SLR-style mirrorless Compact SLR
Sensor Information
Processor Venus Engine Prime
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.6 x 23.8mm 23.6 x 15.8mm
Sensor surface area 847.3mm² 372.9mm²
Sensor resolution 24 megapixels 12 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Maximum resolution 6000 x 4000 4288 x 2848
Maximum native ISO 51200 6400
Maximum boosted ISO 204800 12800
Minimum native ISO 100 100
RAW photos
Minimum boosted ISO 50 -
Autofocusing
Focus manually
Touch focus
Continuous AF
Single AF
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 225 11
Lens
Lens support Leica L Pentax KAF2
Available lenses 30 151
Crop factor 1 1.5
Screen
Range of display Tilting Fixed Type
Display size 3.2 inches 2.7 inches
Resolution of display 2,100k dot 230k dot
Selfie friendly
Liveview
Touch operation
Display technology - TFT LCD monitor
Viewfinder Information
Viewfinder Electronic Optical (pentamirror)
Viewfinder resolution 5,760k dot -
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.78x 0.57x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/8000s 1/6000s
Highest quiet shutter speed 1/8000s -
Continuous shooting speed 9.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Integrated flash
Flash distance no built-in flash 16.00 m
Flash settings Auto, Auto/Red-eye Reduction, Forced On, Forced On/Red-eye Reduction, Slow Sync, Slow Sync w/Red-eye Reduction, Forced Off Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
Auto exposure bracketing
White balance bracketing
Highest flash sync 1/320s 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 3840 x 2160 @ 60p / 150 Mbps, MP4, H.264, Linear PCM 1280 x 720 (24 fps), 640 x 416 (24 fps)
Maximum video resolution 3840x2160 1280x720
Video file format MPEG-4, H.264, H.265 Motion JPEG
Mic jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB Yes (can be charged with high-power laptop/tablet chargers or portable power banks) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1021 grams (2.25 pounds) 580 grams (1.28 pounds)
Dimensions 149 x 110 x 97mm (5.9" x 4.3" x 3.8") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around rating 95 72
DXO Color Depth rating 25.2 22.8
DXO Dynamic range rating 14.5 12.5
DXO Low light rating 3333 811
Other
Battery life 380 shots 1900 shots
Type of battery Battery Pack Battery Pack
Battery ID - 4 x AA
Self timer Yes Yes (2 or 12 sec)
Time lapse feature
Type of storage - SD/SDHC card
Storage slots 2 One
Price at launch $2,498 $600