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Pentax 645D vs Pentax K-70

Portability
50
Imaging
76
Features
52
Overall
66
Pentax 645D front
 
Pentax K-70 front
Portability
62
Imaging
67
Features
81
Overall
72

Pentax 645D vs Pentax K-70 Key Specs

Pentax 645D
(Full Review)
  • 40MP - Medium format Sensor
  • 3" Fixed Display
  • ISO 200 - 1600
  • No Anti-Alias Filter
  • No Video
  • Pentax 645AF2 Mount
  • 1480g - 156 x 117 x 119mm
  • Launched March 2010
  • Newer Model is Pentax 645Z
Pentax K-70
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Display
  • 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
  • Introduced June 2016
  • Replacement is Pentax KF
Photography Glossary

Pentax 645D vs Pentax K-70 Overview

Below, we are evaluating the Pentax 645D and Pentax K-70, former is a Pro DSLR while the other is a Entry-Level DSLR and both are created by Pentax. There exists a large gap among the resolutions of the 645D (40MP) and K-70 (24MP) and the 645D (Medium format) and K-70 (APS-C) enjoy totally different sensor dimensions.

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The 645D was revealed 7 years earlier than the K-70 which is a fairly serious difference as far as camera technology is concerned. Both of these cameras come with different body type with the Pentax 645D being a Large SLR camera and the Pentax K-70 being a Compact SLR camera.

Before delving through a more detailed comparison, below is a brief summary of how the 645D matches up against the K-70 in regards to portability, imaging, features and an overall mark.

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Reasons to pick Pentax 645D over the Pentax K-70

 645D K-70 

Reasons to pick Pentax K-70 over the Pentax 645D

 K-70 645D 
IntroducedJune 2016March 2010Newer by 76 months
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen Easy selfies

Common features in the Pentax 645D and Pentax K-70

 645D K-70 
Focus manually More precise focus
Display dimension3"3"Identical display sizing
Display resolution921k921kSame display resolution
Touch display Missing Touch display

Pentax 645D vs Pentax K-70 Physical Comparison

When you are aiming to travel with your camera, you'll have to think about its weight and volume. The Pentax 645D has got outside dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") with a weight of 1480 grams (3.26 lbs) whilst the Pentax K-70 has sizing of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") with a weight of 688 grams (1.52 lbs).

Check out the Pentax 645D and Pentax K-70 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will change depending on the lens you have at that time. Here is the front view proportions comparison of the 645D and the K-70.

Pentax 645D vs Pentax K-70 size comparison

Taking into account dimensions and weight, the portability rating of the 645D and K-70 is 50 and 62 respectively.

Pentax 645D vs Pentax K-70 top view buttons comparison

Pentax 645D vs Pentax K-70 Sensor Comparison

Sometimes, its tough to envision the difference in sensor dimensions purely by viewing technical specs. The image here will help give you a much better sense of the sensor sizes in the 645D and K-70.

As you have seen, both cameras posses different megapixel count and different sensor dimensions. The 645D having a larger sensor will make achieving shallow depth of field less difficult and the Pentax 645D will provide you with extra detail because of its extra 16MP. Greater resolution will let you crop images somewhat more aggressively. The more aged 645D will be behind when it comes to sensor innovation.

Pentax 645D vs Pentax K-70 sensor size comparison

Pentax 645D vs Pentax K-70 Screen and ViewFinder

Pentax 645D vs Pentax K-70 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645D as a Portrait photography camera
Pentax K-70 as a Portrait photography camera
77
manual focus
great MP (40MP)
sensor size is great (Medium format)
supports RAW formats
does not have liveview
80
manual focus
good MP (24MP)
sensor size is good (APS-C)
offers face detect focus
delivers RAW formats
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Street Comparison

Street photography with Pentax 645D
Street photography with Pentax K-70
58
sensor size is great (Medium format)
supports RAW formats
weather sealing
fixed screen
does not have image stabilization
71
screen can move to multiple angles
image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW formats
environment sealing
good high ISO (102,400)
heavier than others (688 grams)
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Sports Comparison

Pentax 645D as a Sports photography camera
Pentax K-70 as a Sports photography camera
63
great MP (40MP)
sensor size is great (Medium format)
weather sealing
supports phase detect AF
does not have liveview
max frames per second low (1.0 frames/s)
does not have image stabilization
terrible battery pack (800 shots)
72
max shutter speed is good (1/6,000s)
image stabilization (Sensor based)
good MP (24 megapixels)
sensor size is good (APS-C)
offers tracking focus
environment sealing
has phase detect auto focus
max fps low (6.0 frames per second)
not so great battery life (410 CIPA)
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Travel Comparison

Pentax 645D Travel photography factors
Pentax K-70 Travel photography factors
55
weather sealing
great MP (40 megapixels)
terrible battery pack (800 CIPA)
does not posses selfie friendly screen
64
environment sealing
good MP (24 megapixels)
flash built-in
selfie friendly screen
not so great battery life (410 per charge)
heavier than others (688 grams)
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Landscape Comparison

Pentax 645D as a Landscape photography camera
Pentax K-70 as a Landscape photography camera
72
manual focus
swap lenses (Pentax 645AF2 mount)
screen size is decent (3 inches)
great MP (40 megapixels)
sensor size is great (Medium format)
no low pass filter
supports RAW formats
weather sealing
2 card slots
does not have liveview
does not have image stabilization
terrible battery pack (800 per charge)
78
manual focus
interchangeable lenses (Pentax KAF2 mount)
screen is a good size (3")
image stabilization (Sensor based)
good MP (24MP)
sensor size is good (APS-C)
no low pass filter
good high ISO (102,400)
delivers RAW formats
environment sealing
not so great battery life (410 CIPA)
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Vlogging Comparison

Vlogging with Pentax 645D
Vlogging with Pentax K-70
9
no video recording
71
selfie friendly screen
image stabilization (Sensor based)
offers face detect focus
good video quality (1920 x 1080 pxls)
has mic jack
heavier than others (688 grams)
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Pentax 645D vs Pentax K-70 Specifications

Detailed spec comparison table for Pentax 645D and Pentax K-70
 Pentax 645DPentax K-70
General Information
Company Pentax Pentax
Model type Pentax 645D Pentax K-70
Type Pro DSLR Entry-Level DSLR
Launched 2010-03-10 2016-06-08
Body design Large SLR Compact SLR
Sensor Information
Processor Prime II PRIME MII
Sensor type CCD CMOS
Sensor size Medium format APS-C
Sensor dimensions 44 x 33mm 23.5 x 15.6mm
Sensor surface area 1,452.0mm² 366.6mm²
Sensor resolution 40MP 24MP
Anti alias filter
Aspect ratio 4:3 3:2
Peak resolution 7264 x 5440 6000 x 4000
Highest native ISO 1600 102400
Min native ISO 200 100
RAW files
Min enhanced ISO 100 -
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Autofocus single
Autofocus tracking
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Total focus points 11 11
Cross type focus points - 9
Lens
Lens mount type Pentax 645AF2 Pentax KAF2
Available lenses 6 151
Focal length multiplier 0.8 1.5
Screen
Display type Fixed Type Fully Articulated
Display sizing 3" 3"
Resolution of display 921 thousand dot 921 thousand dot
Selfie friendly
Liveview
Touch friendly
Display technology TFT Color LCD with wide-viewing angle and with AR coating -
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 98% 100%
Viewfinder magnification 0.85x 0.63x
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/4000s 1/6000s
Continuous shutter speed 1.0 frames/s 6.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Built-in flash
Flash distance no built-in flash 12.00 m (at ISO 100)
Flash settings Auto, On, Off, Red-eye, Slow Sync, Rear Curtain Auto, auto w/redeye reduction, flash on, flash + redeye reduction, slow sync, trailing curtain sync, manual
Hot shoe
Auto exposure bracketing
White balance bracketing
Fastest flash sync 1/125s -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions - 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p)
Highest video resolution None 1920x1080
Video format - MPEG-4, H.264
Mic input
Headphone input
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Optional
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1480g (3.26 pounds) 688g (1.52 pounds)
Dimensions 156 x 117 x 119mm (6.1" x 4.6" x 4.7") 126 x 93 x 74mm (5.0" x 3.7" x 2.9")
DXO scores
DXO Overall rating 82 not tested
DXO Color Depth rating 24.6 not tested
DXO Dynamic range rating 12.6 not tested
DXO Low light rating 1262 not tested
Other
Battery life 800 photographs 410 photographs
Form of battery Battery Pack Battery Pack
Battery ID D-LI90 -
Self timer Yes (2 or 10 sec) Yes (2 or 12 secs, continuous)
Time lapse shooting
Storage media SD/SDHC SD/SDHC/SDXC (UHS-I compatible)
Storage slots Dual One
Retail cost $4,000 $649