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Pentax K100D S vs Sony A65

Portability
65
Imaging
45
Features
38
Overall
42
Pentax K100D Super front
 
Sony SLT-A65 front
Portability
64
Imaging
63
Features
85
Overall
71

Pentax K100D S vs Sony A65 Key Specs

Pentax K100D S
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 646g - 129 x 91 x 71mm
  • Released June 2007
  • Previous Model is Pentax K100D
  • New Model is Pentax K200D
Sony A65
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 12800 (Expand to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 622g - 132 x 97 x 81mm
  • Launched November 2011
  • Later Model is Sony A68
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Pentax K100D S vs Sony A65 Overview

Lets look a little more in depth at the Pentax K100D S versus Sony A65, both Entry-Level DSLR cameras by competitors Pentax and Sony. There is a big difference among the sensor resolutions of the K100D S (6MP) and A65 (24MP) but they come with the exact same sensor dimensions (APS-C).

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The K100D S was released 5 years before the A65 and that is a fairly big gap as far as camera tech is concerned. Each of the cameras come with the identical body type (Compact SLR).

Before we go straight into a full comparison, below is a concise summation of how the K100D S matches up versus the A65 with respect to portability, imaging, features and an overall grade.

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Reasons to pick Pentax K100D S over the Sony A65

 K100D S A65 

Reasons to pick Sony A65 over the Pentax K100D S

 A65 K100D S 
LaunchedNovember 2011June 2007More recent by 53 months
Display typeFully ArticulatedFixed Fully Articulating display
Display dimension3"2.5"Larger display (+0.5")
Display resolution921k210kClearer display (+711k dot)
Selfie screen Easy selfies

Common features in the Pentax K100D S and Sony A65

 K100D S A65 
Manual focus Dial precise focusing
Touch friendly display No Touch friendly display

Pentax K100D S vs Sony A65 Physical Comparison

If you are looking to lug around your camera frequently, you will have to consider its weight and volume. The Pentax K100D S features outside measurements of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") accompanied by a weight of 646 grams (1.42 lbs) while the Sony A65 has sizing of 132mm x 97mm x 81mm (5.2" x 3.8" x 3.2") and a weight of 622 grams (1.37 lbs).

Check out the Pentax K100D S versus Sony A65 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will differ based on the lens you are working with during that time. Underneath is the front view over all size comparison of the K100D S against the A65.

Pentax K100D S vs Sony A65 size comparison

Looking at size and weight, the portability grade of the K100D S and A65 is 65 and 64 respectively.

Pentax K100D S vs Sony A65 top view buttons comparison

Pentax K100D S vs Sony A65 Sensor Comparison

Usually, it can be difficult to imagine the contrast in sensor measurements merely by going through specs. The visual below will help give you a far better sense of the sensor sizing in the K100D S and A65.

All in all, each of these cameras have got the exact same sensor measurements but different MP. You should expect to see the Sony A65 to produce greater detail as a result of its extra 18 Megapixels. Greater resolution will also help you crop pics much more aggressively. The older K100D S will be behind with regard to sensor tech.

Pentax K100D S vs Sony A65 sensor size comparison

Pentax K100D S vs Sony A65 Screen and ViewFinder

Pentax K100D S vs Sony A65 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K100D S Portrait photography information
Sony A65 Portrait photography information
51
has manual focus
sensor size is nice (APS-C)
saves RAW formats
no liveview
low resolution sensor (6MP)
77
has manual focus
resolution is good (24 megapixels)
sensor size is decent (APS-C)
offers face detect autofocus
exports RAW files
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Street Comparison

Pentax K100D S Street photography highlights
Sony A65 Street photography highlights
64
has image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW formats
screen does not articulate
77
fully articulated screen
has image stabilization (Sensor based)
sensor size is decent (APS-C)
exports RAW files
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Sports Comparison

Pentax K100D S Sports photography info
Sony A65 Sports photography info
47
has image stabilization (Sensor based)
sensor size is nice (APS-C)
has phase detect AF
no liveview
max fps very slow (3.0 fps)
low resolution sensor (6MP)
81
has image stabilization (Sensor based)
resolution is good (24 megapixels)
sensor size is decent (APS-C)
offers tracking focus
has phase detect autofocus
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Travel Comparison

Pentax K100D S as a Travel photography camera
Sony A65 as a Travel photography camera
45
built-in flash
doesn't have Time Lapse function
low resolution sensor (6MP)
doesn't offer selfie friendly screen
68
resolution is good (24 megapixels)
built-in flash
screen is selfie friendly
missing Time Lapse mode
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Landscape Comparison

Pentax K100D S Landscape photography details
Sony A65 Landscape photography details
52
has manual focus
change lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW formats
screen is somewhat small (2.5 inch)
no liveview
low resolution sensor (6 megapixels)
doesn't have Time Lapse function
75
has manual focus
interchangeable lenses (Sony/Minolta Alpha mount)
good sized screen (3")
has image stabilization (Sensor based)
resolution is good (24MP)
sensor size is decent (APS-C)
exports RAW files
missing Time Lapse mode
Photography Glossary

Vlogging Comparison

Pentax K100D S Vlogging details
Sony A65 Vlogging details
9
no video recording
78
screen is selfie friendly
has image stabilization (Sensor based)
offers face detect autofocus
video res high (1920 x 1080 resolution)
has mic port
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Pentax K100D S vs Sony A65 Specifications

Detailed spec comparison table for Pentax K100D S and Sony A65
 Pentax K100D SuperSony SLT-A65
General Information
Brand Name Pentax Sony
Model Pentax K100D Super Sony SLT-A65
Class Entry-Level DSLR Entry-Level DSLR
Released 2007-06-28 2011-11-15
Body design Compact SLR Compact SLR
Sensor Information
Processor Chip - Bionz
Sensor type CCD CMOS
Sensor size APS-C APS-C
Sensor dimensions 23.5 x 15.7mm 23.5 x 15.6mm
Sensor area 369.0mm² 366.6mm²
Sensor resolution 6 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 3:2 3:2 and 16:9
Maximum resolution 3008 x 2008 6000 x 4000
Maximum native ISO 3200 12800
Maximum boosted ISO - 25600
Lowest native ISO 200 100
RAW photos
Autofocusing
Manual focus
AF touch
AF continuous
Single AF
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 11 15
Cross focus points - 3
Lens
Lens mount Pentax KAF2 Sony/Minolta Alpha
Total lenses 151 143
Crop factor 1.5 1.5
Screen
Display type Fixed Type Fully Articulated
Display sizing 2.5 inches 3 inches
Display resolution 210 thousand dot 921 thousand dot
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Optical (pentamirror) Electronic
Viewfinder resolution - 2,359 thousand dot
Viewfinder coverage 96% 100%
Viewfinder magnification 0.57x 0.73x
Features
Lowest shutter speed 30s 30s
Highest shutter speed 1/4000s 1/4000s
Continuous shooting speed 3.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash range - 10.00 m
Flash options Auto, On, Off, Red-eye reduction Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AE bracketing
WB bracketing
Highest flash sync 1/180s 1/160s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions - 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Maximum video resolution None 1920x1080
Video data format - MPEG-4, AVCHD, H.264
Mic jack
Headphone jack
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 646 grams (1.42 lbs) 622 grams (1.37 lbs)
Dimensions 129 x 91 x 71mm (5.1" x 3.6" x 2.8") 132 x 97 x 81mm (5.2" x 3.8" x 3.2")
DXO scores
DXO All around score not tested 74
DXO Color Depth score not tested 23.4
DXO Dynamic range score not tested 12.6
DXO Low light score not tested 717
Other
Battery life - 560 images
Style of battery - Battery Pack
Battery model 4 x AA NP-FM500H
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC card SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots 1 1
Price at launch $520 $700