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Pentax K-70 vs Sony A100

Portability
62
Imaging
67
Features
81
Overall
72
Pentax K-70 front
 
Sony Alpha DSLR-A100 front
Portability
64
Imaging
48
Features
38
Overall
44

Pentax K-70 vs Sony A100 Key Specs

Pentax K-70
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 102400
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 688g - 126 x 93 x 74mm
  • Launched June 2016
  • Successor is Pentax KF
Sony A100
(Full Review)
  • 10MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 1600
  • Sensor based Image Stabilization
  • No Video
  • Sony/Minolta Alpha Mount
  • 638g - 133 x 95 x 71mm
  • Launched July 2006
  • Superseded the Konica Minolta 5D
  • Later Model is Sony A550
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Pentax K-70 vs Sony A100 Overview

Let's look more in depth at the Pentax K-70 vs Sony A100, both Entry-Level DSLR cameras by companies Pentax and Sony. There exists a significant gap among the image resolutions of the K-70 (24MP) and A100 (10MP) but both cameras provide the same sensor sizing (APS-C).

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The K-70 was brought out 10 years after the A100 which is a fairly sizable gap as far as camera technology is concerned. Both the cameras have the same body design (Compact SLR).

Before getting straight to a in depth comparison, here is a brief summation of how the K-70 matches up vs the A100 with regard to portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-70 over the Sony A100

 K-70 A100 
LaunchedJune 2016July 2006Newer by 120 months
Display typeFully ArticulatedFixed Fully Articulating display
Display dimensions3"2.5"Larger display (+0.5")
Display resolution921k230kClearer display (+691k dot)
Selfie screen Take selfies

Reasons to pick Sony A100 over the Pentax K-70

 A100 K-70 

Common features in the Pentax K-70 and Sony A100

 K-70 A100 
Focus manually Very exact focusing
Touch friendly display Lack of Touch friendly display

Pentax K-70 vs Sony A100 Physical Comparison

If you're planning to travel with your camera often, you will want to factor its weight and measurements. The Pentax K-70 provides outside dimensions of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") with a weight of 688 grams (1.52 lbs) whilst the Sony A100 has proportions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") along with a weight of 638 grams (1.41 lbs).

Examine the Pentax K-70 vs Sony A100 in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will vary depending on the lens you have chosen at that moment. Following is a front view measurement comparison of the K-70 compared to the A100.

Pentax K-70 vs Sony A100 size comparison

Using dimensions and weight, the portability rating of the K-70 and A100 is 62 and 64 respectively.

Pentax K-70 vs Sony A100 top view buttons comparison

Pentax K-70 vs Sony A100 Sensor Comparison

Typically, it is very hard to envision the difference in sensor dimensions simply by checking out a spec sheet. The picture below might give you a greater sense of the sensor sizes in the K-70 and A100.

Clearly, the 2 cameras have the same sensor dimensions but not the same MP. You should expect to see the Pentax K-70 to provide more detail having its extra 14MP. Greater resolution will let you crop pics a bit more aggressively. The newer K-70 is going to have a benefit with regard to sensor tech.

Pentax K-70 vs Sony A100 sensor size comparison

Pentax K-70 vs Sony A100 Screen and ViewFinder

Pentax K-70 vs Sony A100 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-70 Portrait photography details
Sony A100 Portrait photography details
80
has manual focus
decent sensor resolution (24 megapixels)
sensor size is nice (APS-C)
includes face detection focus
delivers RAW formats
52
you can focus manually
nice sensor size (APS-C)
supports RAW formats
no liveview
low MP (10 megapixels)
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Street Comparison

Pentax K-70 as a Street photography camera
Sony A100 as a Street photography camera
71
screen articulates
built in image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW formats
weather proof
above average high ISO (102,400)
more heavy than average in class (688 grams)
64
built in image stabilization (Sensor based)
nice sensor size (APS-C)
supports RAW formats
screen does not articulate
Photography Glossary

Sports Comparison

Pentax K-70 as a Sports photography camera
Sony A100 as a Sports photography camera
72
great max shutter speed (1/6,000 seconds)
built in image stabilization (Sensor based)
decent sensor resolution (24 megapixels)
sensor size is nice (APS-C)
includes tracking autofocus
weather proof
comes with phase detect auto focus
max fps low (6.0 frames per second)
not so great battery life (410 per charge)
49
built in image stabilization (Sensor based)
nice sensor size (APS-C)
sensor has phase detect AF
no liveview
slow frames per second (3.0 frames per second)
low MP (10 megapixels)
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Travel Comparison

Pentax K-70 as a Travel photography camera
Sony A100 as a Travel photography camera
64
weather proof
decent sensor resolution (24 megapixels)
has built in flash
screen is selfie friendly
not so great battery life (410 CIPA)
more heavy than average in class (688g)
45
flash built-in
doesn't have Time Lapse mode
low MP (10MP)
does not contain selfie friendly screen
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Landscape Comparison

Pentax K-70 Landscape photography details
Sony A100 Landscape photography details
78
has manual focus
change lenses (Pentax KAF2 mount)
pretty good screen size (3 inch)
built in image stabilization (Sensor based)
decent sensor resolution (24MP)
sensor size is nice (APS-C)
doesnt have anti aliasing filter
above average high ISO (102,400)
delivers RAW formats
weather proof
not so great battery life (410 CIPA)
53
you can focus manually
swap lenses (Sony/Minolta Alpha mount)
built in image stabilization (Sensor based)
nice sensor size (APS-C)
supports RAW formats
small screen (2.5 inches)
no liveview
low MP (10 megapixels)
doesn't have Time Lapse mode
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Vlogging Comparison

Pentax K-70 as a Vlogging camera
Sony A100 as a Vlogging camera
71
screen is selfie friendly
built in image stabilization (Sensor based)
includes face detection focus
high quality video (1920 x 1080 resolution)
does have external microphone socket
more heavy than average in class (688g)
9
lack of video recording
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Pentax K-70 vs Sony A100 Specifications

Detailed spec comparison table for Pentax K-70 and Sony A100
 Pentax K-70Sony Alpha DSLR-A100
General Information
Brand Pentax Sony
Model type Pentax K-70 Sony Alpha DSLR-A100
Category Entry-Level DSLR Entry-Level DSLR
Launched 2016-06-08 2006-07-31
Body design Compact SLR Compact SLR
Sensor Information
Processor Chip PRIME MII -
Sensor type CMOS CCD
Sensor size APS-C APS-C
Sensor dimensions 23.5 x 15.6mm 23.6 x 15.8mm
Sensor surface area 366.6mm² 372.9mm²
Sensor resolution 24MP 10MP
Anti alias filter
Aspect ratio 3:2 3:2
Peak resolution 6000 x 4000 3872 x 2592
Highest native ISO 102400 1600
Minimum native ISO 100 100
RAW data
Autofocusing
Manual focusing
Touch focus
Continuous AF
Single AF
Tracking AF
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 11 9
Cross type focus points 9 -
Lens
Lens support Pentax KAF2 Sony/Minolta Alpha
Total lenses 151 143
Crop factor 1.5 1.5
Screen
Range of screen Fully Articulated Fixed Type
Screen diagonal 3 inch 2.5 inch
Screen resolution 921k dot 230k dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentamirror)
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification 0.63x 0.55x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/6000 secs 1/4000 secs
Continuous shutter speed 6.0fps 3.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance 12.00 m (at ISO 100) -
Flash settings Auto, auto w/redeye reduction, flash on, flash + redeye reduction, slow sync, trailing curtain sync, manual Auto, Fill-in, Red-Eye reduction, Slow Sync, Off
External flash
Auto exposure bracketing
White balance bracketing
Max flash sync - 1/160 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) -
Highest video resolution 1920x1080 None
Video data format MPEG-4, H.264 -
Mic jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 688 grams (1.52 lb) 638 grams (1.41 lb)
Physical dimensions 126 x 93 x 74mm (5.0" x 3.7" x 2.9") 133 x 95 x 71mm (5.2" x 3.7" x 2.8")
DXO scores
DXO Overall rating not tested 61
DXO Color Depth rating not tested 22.0
DXO Dynamic range rating not tested 11.2
DXO Low light rating not tested 476
Other
Battery life 410 photos -
Battery form Battery Pack -
Battery ID - NP-FM55H
Self timer Yes (2 or 12 secs, continuous) Yes (2 or 10 sec)
Time lapse feature
Storage media SD/SDHC/SDXC (UHS-I compatible) Compact Flash (Type I or II)
Storage slots One One
Cost at release $649 $1,000