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Pentax K-70 vs Sony A33

Portability
62
Imaging
67
Features
81
Overall
72
Pentax K-70 front
 
Sony SLT-A33 front
Portability
67
Imaging
54
Features
80
Overall
64

Pentax K-70 vs Sony A33 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 Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 688g - 126 x 93 x 74mm
  • Announced June 2016
  • Newer Model is Pentax KF
Sony A33
(Full Review)
  • 14MP - 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
  • 500g - 124 x 92 x 85mm
  • Launched August 2010
  • Updated by Sony A35
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Pentax K-70 vs Sony A33 Overview

Below is a in-depth comparison of the Pentax K-70 and Sony A33, both Entry-Level DSLR cameras by competitors Pentax and Sony. There is a sizeable difference among the resolutions of the K-70 (24MP) and A33 (14MP) but both cameras boast the same sensor dimensions (APS-C).

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The K-70 was released 5 years later than the A33 and that is a fairly large gap as far as camera tech is concerned. Both of the cameras have the same body design (Compact SLR).

Before going right into a step-by-step comparison, here is a concise summation of how the K-70 grades vs the A33 with regards to portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-70 over the Sony A33

 K-70 A33 
LaunchedJune 2016August 2010More recent by 71 months

Reasons to pick Sony A33 over the Pentax K-70

 A33 K-70 

Common features in the Pentax K-70 and Sony A33

 K-70 A33 
Manual focus Very precise focusing
Display typeFully ArticulatedFully ArticulatedFully Articulated display
Display dimensions3"3"Equal display sizing
Display resolution921k921kExact same display resolution
Selfie screen Both good for selfies
Touch friendly display Lacking Touch friendly display

Pentax K-70 vs Sony A33 Physical Comparison

If you're intending to lug around your camera frequently, you will want to factor its weight and volume. The Pentax K-70 enjoys exterior measurements of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") with a weight of 688 grams (1.52 lbs) while the Sony A33 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs).

Take a look at the Pentax K-70 and Sony A33 in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have attached at that time. Underneath is a front view dimension comparison of the K-70 versus the A33.

Pentax K-70 vs Sony A33 size comparison

Factoring in size and weight, the portability score of the K-70 and A33 is 62 and 67 respectively.

Pentax K-70 vs Sony A33 top view buttons comparison

Pentax K-70 vs Sony A33 Sensor Comparison

Generally, it is tough to visualise the difference in sensor measurements purely by going through specs. The photograph below may provide you a more clear sense of the sensor sizing in the K-70 and A33.

All in all, both cameras provide the same sensor dimensions but not the same megapixels. You should anticipate the Pentax K-70 to produce more detail as a result of its extra 10 Megapixels. Greater resolution can also let you crop images more aggressively. The newer K-70 is going to have an edge with regard to sensor technology.

Pentax K-70 vs Sony A33 sensor size comparison

Pentax K-70 vs Sony A33 Screen and ViewFinder

Pentax K-70 vs Sony A33 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-70 Portrait photography features
Sony A33 Portrait photography features
80
you can focus manually
sensor resolution is decent (24 megapixels)
nice sensor size (APS-C)
offers face detection autofocus
supports RAW formats
72
manual focus
decent MP (14 megapixels)
decent sensor size (APS-C)
comes with face detection focusing
supports RAW formats
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Street Comparison

Pentax K-70 as a Street photography camera
Sony A33 as a Street photography camera
71
screen articulates fully
built in image stabilization (Sensor based)
nice sensor size (APS-C)
supports RAW formats
environment proof
good high ISO (102,400)
heavier than competition (688g)
76
screen articulates fully
built in image stabilization (Sensor based)
decent sensor size (APS-C)
supports RAW formats
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Sports Comparison

Pentax K-70 Sports photography features
Sony A33 Sports photography features
72
great max shutter speed (1/6,000 seconds)
built in image stabilization (Sensor based)
sensor resolution is decent (24 megapixels)
nice sensor size (APS-C)
offers tracking autofocus
environment proof
sensor has phase detect autofocus
very slow continuous shooting (6.0 frames/s)
not so great battery pack (410 CIPA)
67
built in image stabilization (Sensor based)
decent MP (14MP)
decent sensor size (APS-C)
comes with phase detect AF
terrible battery pack (340 shots)
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Travel Comparison

Travel photography with Pentax K-70
Travel photography with Sony A33
64
environment proof
sensor resolution is decent (24MP)
built-in flash
selfie friendly display
not so great battery pack (410 per charge)
heavier than competition (688g)
61
decent MP (14 megapixels)
flash built-in
screen is selfie friendly
does not have Time Lapse recording
terrible battery pack (340 shots)
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Landscape Comparison

Pentax K-70 Landscape photography information
Sony A33 Landscape photography information
78
you can focus manually
swap lenses (Pentax KAF2 mount)
screen size is decent (3 inches)
built in image stabilization (Sensor based)
sensor resolution is decent (24MP)
nice sensor size (APS-C)
no anti-alias filter
good high ISO (102,400)
supports RAW formats
environment proof
not so great battery pack (410 CIPA)
67
manual focus
swap lenses (Sony/Minolta Alpha mount)
screen size is decent (3")
built in image stabilization (Sensor based)
decent MP (14 megapixels)
decent sensor size (APS-C)
supports RAW formats
terrible battery pack (340 shots)
does not have Time Lapse recording
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Vlogging Comparison

Pentax K-70 Vlogging info
Sony A33 Vlogging info
71
selfie friendly display
built in image stabilization (Sensor based)
offers face detection autofocus
video resolution high (1920 x 1080 pxls)
includes external mic jack
heavier than competition (688 grams)
77
screen is selfie friendly
built in image stabilization (Sensor based)
comes with face detection focusing
high res video (1920 x 1080 pxls)
does have external mic socket
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Pentax K-70 vs Sony A33 Specifications

Detailed spec comparison table for Pentax K-70 and Sony A33
 Pentax K-70Sony SLT-A33
General Information
Brand Name Pentax Sony
Model type Pentax K-70 Sony SLT-A33
Type Entry-Level DSLR Entry-Level DSLR
Announced 2016-06-08 2010-08-24
Physical type Compact SLR Compact SLR
Sensor Information
Powered by PRIME MII Bionz
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor dimensions 23.5 x 15.6mm 23.5 x 15.6mm
Sensor surface area 366.6mm² 366.6mm²
Sensor resolution 24 megapixels 14 megapixels
Anti alias filter
Aspect ratio 3:2 3:2 and 16:9
Max resolution 6000 x 4000 4592 x 3056
Max native ISO 102400 12800
Max enhanced ISO - 25600
Minimum native ISO 100 100
RAW data
Autofocusing
Focus manually
Touch focus
AF continuous
AF single
Tracking AF
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Total focus points 11 15
Cross type focus points 9 3
Lens
Lens support Pentax KAF2 Sony/Minolta Alpha
Number of lenses 151 143
Crop factor 1.5 1.5
Screen
Type of screen Fully Articulated Fully Articulated
Screen diagonal 3 inches 3 inches
Resolution of screen 921 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder Optical (pentaprism) Electronic
Viewfinder resolution - 1,150 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.63x 0.73x
Features
Min shutter speed 30s 30s
Max shutter speed 1/6000s 1/4000s
Continuous shutter rate 6.0 frames/s 7.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash distance 12.00 m (at ISO 100) 10.00 m (@ ISO 100)
Flash options Auto, auto w/redeye reduction, flash on, flash + redeye reduction, slow sync, trailing curtain sync, manual Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AE bracketing
WB bracketing
Max flash synchronize - 1/160s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Max video resolution 1920x1080 1920x1080
Video file format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Mic port
Headphone port
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 688g (1.52 lbs) 500g (1.10 lbs)
Physical dimensions 126 x 93 x 74mm (5.0" x 3.7" x 2.9") 124 x 92 x 85mm (4.9" x 3.6" x 3.3")
DXO scores
DXO Overall rating not tested 70
DXO Color Depth rating not tested 22.8
DXO Dynamic range rating not tested 12.6
DXO Low light rating not tested 591
Other
Battery life 410 photographs 340 photographs
Type of battery Battery Pack Battery Pack
Battery ID - NP-FW50
Self timer Yes (2 or 12 secs, continuous) Yes (2 or 10 sec)
Time lapse recording
Type of storage SD/SDHC/SDXC (UHS-I compatible) SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Card slots 1 1
Pricing at release $649 $230