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Pentax K-x vs Pentax K100D

Portability
69
Imaging
52
Features
47
Overall
50
Pentax K-x front
 
Pentax K100D front
Portability
64
Imaging
45
Features
36
Overall
41

Pentax K-x vs Pentax K100D Key Specs

Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • 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
  • Revealed December 2009
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
  • Launched December 2006
  • Later Model is Pentax K100D S
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Pentax K-x vs Pentax K100D Overview

Here, we are contrasting the Pentax K-x and Pentax K100D, both Entry-Level DSLR digital cameras and both are produced by Pentax. There is a huge difference between the sensor resolutions of the K-x (12MP) and K100D (6MP) but both cameras offer the identical sensor measurements (APS-C).

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The K-x was brought out 3 years later than the K100D and that is quite a significant gap as far as tech is concerned. The two cameras feature the same body design (Compact SLR).

Before going right into a in-depth comparison, here is a concise synopsis of how the K-x grades against the K100D when it comes to portability, imaging, features and an overall rating.

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Reasons to pick Pentax K-x over the Pentax K100D

 K-x K100D 
LaunchedDecember 2009December 2006Fresher by 38 months
Display size2.7"2.5"Larger display (+0.2")
Display resolution230k210kCrisper display (+20k dot)

Reasons to pick Pentax K100D over the Pentax K-x

 K100D K-x 

Common features in the Pentax K-x and Pentax K100D

 K-x K100D 
Manually focus More accurate focusing
Display typeFixed Fixed Fixed display
Selfie screen Lacking selfie screen
Touch display Lacking Touch display

Pentax K-x vs Pentax K100D Physical Comparison

For anyone who is aiming to carry your camera frequently, you are going to need to consider its weight and measurements. The Pentax K-x offers physical measurements of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") with a weight of 580 grams (1.28 lbs) while the Pentax K100D has proportions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") with a weight of 660 grams (1.46 lbs).

See the Pentax K-x and Pentax K100D in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you have at that moment. Following is a front view measurements comparison of the K-x vs the K100D.

Pentax K-x vs Pentax K100D size comparison

Factoring in size and weight, the portability rating of the K-x and K100D is 69 and 64 respectively.

Pentax K-x vs Pentax K100D top view buttons comparison

Pentax K-x vs Pentax K100D Sensor Comparison

Oftentimes, its difficult to picture the difference between sensor sizing merely by reviewing technical specs. The visual here will help provide you a clearer sense of the sensor sizing in the K-x and K100D.

As you can tell, both cameras feature the identical sensor size but different resolution. You should anticipate the Pentax K-x to offer greater detail having its extra 6 Megapixels. Greater resolution will enable you to crop pics way more aggressively. The newer K-x provides an edge when it comes to sensor innovation.

Pentax K-x vs Pentax K100D sensor size comparison

Pentax K-x vs Pentax K100D Screen and ViewFinder

Pentax K-x vs Pentax K100D Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Pentax K-x Portrait photography info
Pentax K100D Portrait photography info
63
manual focus
sensor size is decent (APS-C)
offers face detect focusing
delivers RAW formats
megapixel count low (12 megapixels)
51
manual focus
sensor size is decent (APS-C)
supports RAW formats
doesn't have liveview
low megapixels (6 megapixels)
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Street Comparison

Street photography with Pentax K-x
Street photography with Pentax K100D
67
image stabilization (Sensor based)
sensor size is decent (APS-C)
delivers RAW formats
fixed screen
58
has image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW formats
screen does not articulate
heavier than competition (660 grams)
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Sports Comparison

Sports photography with Pentax K-x
Sports photography with Pentax K100D
61
max shutter speed is good (1/6,000 seconds)
image stabilization (Sensor based)
sensor size is decent (APS-C)
better than average battery life (1,900 shots)
supports phase detect AF
very slow continuous shooting (5.0 frames per second)
megapixel count low (12 megapixels)
47
has image stabilization (Sensor based)
sensor size is decent (APS-C)
has phase detect auto focus
doesn't have liveview
slow continuous shooting (3.0 frames/s)
low megapixels (6 megapixels)
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Travel Comparison

Pentax K-x Travel photography info
Pentax K100D Travel photography info
54
better than average battery life (1,900 CIPA)
has built in flash
missing Time Lapse recording
megapixel count low (12MP)
does not feature selfie friendly display
42
flash built-in
doesn't have Time Lapse mode
heavier than competition (660 grams)
low megapixels (6 megapixels)
screen is not selfie friendly
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Landscape Comparison

Pentax K-x as a Landscape photography camera
Pentax K100D as a Landscape photography camera
61
manual focus
interchangeable lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is decent (APS-C)
delivers RAW formats
better than average battery life (1,900 shots)
small screen (2.7 inch)
megapixel count low (12MP)
missing Time Lapse recording
52
manual focus
swap lenses (Pentax KAF mount)
has image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW formats
screen is somewhat small (2.5 inch)
doesn't have liveview
low megapixels (6 megapixels)
doesn't have Time Lapse mode
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Vlogging Comparison

Pentax K-x as a Vlogging camera
Pentax K100D as a Vlogging camera
27
image stabilization (Sensor based)
offers face detect focusing
does not feature selfie friendly display
low res video (1280 x 720 resolution)
missing mic port
9
no video shooting
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Pentax K-x vs Pentax K100D Specifications

Detailed spec comparison table for Pentax K-x and Pentax K100D
 Pentax K-xPentax K100D
General Information
Company Pentax Pentax
Model type Pentax K-x Pentax K100D
Class Entry-Level DSLR Entry-Level DSLR
Revealed 2009-12-23 2006-12-03
Body design Compact SLR Compact SLR
Sensor Information
Processor Prime -
Sensor type CMOS CCD
Sensor size APS-C APS-C
Sensor dimensions 23.6 x 15.8mm 23.5 x 15.7mm
Sensor area 372.9mm² 369.0mm²
Sensor resolution 12 megapixel 6 megapixel
Anti alias filter
Aspect ratio 3:2 3:2
Peak resolution 4288 x 2848 3008 x 2008
Highest native ISO 6400 3200
Highest enhanced ISO 12800 -
Min native ISO 100 200
RAW photos
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 11 11
Lens
Lens support Pentax KAF2 Pentax KAF
Available lenses 151 151
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Fixed Type
Screen size 2.7 inches 2.5 inches
Resolution of screen 230k dot 210k dot
Selfie friendly
Liveview
Touch display
Screen technology TFT LCD monitor -
Viewfinder Information
Viewfinder Optical (pentamirror) Optical (pentamirror)
Viewfinder coverage 96 percent 96 percent
Viewfinder magnification 0.57x 0.57x
Features
Min shutter speed 30s 30s
Max shutter speed 1/6000s 1/4000s
Continuous shutter speed 5.0 frames per second 3.0 frames per second
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash distance 16.00 m -
Flash settings Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless Auto, On, Off, Red-eye reduction
External flash
Auto exposure bracketing
WB bracketing
Max flash sync 1/180s 1/180s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1280 x 720 (24 fps), 640 x 416 (24 fps) -
Highest video resolution 1280x720 None
Video data format 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
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 580 gr (1.28 lbs) 660 gr (1.46 lbs)
Physical dimensions 123 x 92 x 68mm (4.8" x 3.6" x 2.7") 129 x 93 x 70mm (5.1" x 3.7" x 2.8")
DXO scores
DXO Overall rating 72 not tested
DXO Color Depth rating 22.8 not tested
DXO Dynamic range rating 12.5 not tested
DXO Low light rating 811 not tested
Other
Battery life 1900 shots -
Battery format Battery Pack -
Battery ID 4 x AA 4 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse recording
Type of storage SD/SDHC card SD/MMC card
Storage slots One One
Launch cost $600 $0