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Pentax 645D vs Pentax P70

Portability
50
Imaging
76
Features
52
Overall
66
Pentax 645D front
 
Pentax Optio P70 front
Portability
95
Imaging
35
Features
20
Overall
29

Pentax 645D vs Pentax P70 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
  • Revealed March 2010
  • Newer Model is Pentax 645Z
Pentax P70
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 64 - 6400
  • 1280 x 720 video
  • 28-110mm (F2.8-5.0) lens
  • 155g - 97 x 54 x 22mm
  • Launched March 2009
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Pentax 645D vs Pentax P70 Overview

Let's look a little more in depth at the Pentax 645D and Pentax P70, one being a Pro DSLR and the other is a Ultracompact and they are both created by Pentax. There exists a significant gap among the resolutions of the 645D (40MP) and P70 (12MP) and the 645D (Medium format) and P70 (1/2.3") boast totally different sensor sizes.

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The 645D was released 13 months later than the P70 making them a generation apart from one another. Each of these cameras have different body design with the Pentax 645D being a Large SLR camera and the Pentax P70 being a Ultracompact camera.

Before diving into a step-by-step comparison, here is a brief overview of how the 645D grades versus the P70 for portability, imaging, features and an overall grade.

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Reasons to pick Pentax 645D over the Pentax P70

 645D P70 
LaunchedMarch 2010March 2009More recent by 13 months
Display dimensions3"2.7"Larger display (+0.3")
Display resolution921k230kSharper display (+691k dot)

Reasons to pick Pentax P70 over the Pentax 645D

 P70 645D 

Common features in the Pentax 645D and Pentax P70

 645D P70 
Manually focus More exact focusing
Display typeFixed Fixed Fixed display
Selfie screen Lacking selfie screen
Touch display Lacking Touch display

Pentax 645D vs Pentax P70 Physical Comparison

In case you're intending to lug around your camera frequently, you will have to think about its weight and proportions. The Pentax 645D features outside measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs) and the Pentax P70 has measurements of 97mm x 54mm x 22mm (3.8" x 2.1" x 0.9") accompanied by a weight of 155 grams (0.34 lbs).

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Bear in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you have chosen at the time. The following is a front view over all size comparison of the 645D and the P70.

Pentax 645D vs Pentax P70 size comparison

Factoring in dimensions and weight, the portability score of the 645D and P70 is 50 and 95 respectively.

Pentax 645D vs Pentax P70 top view buttons comparison

Pentax 645D vs Pentax P70 Sensor Comparison

Sometimes, it's difficult to see the gap in sensor measurements purely by going through technical specs. The photograph below will help offer you a more clear sense of the sensor sizing in the 645D and P70.

As you have seen, both the cameras provide different megapixels and different sensor measurements. The 645D due to its larger sensor will make shooting shallower DOF simpler and the Pentax 645D will show greater detail as a result of its extra 28MP. Greater resolution can also help you crop images more aggressively. The more modern 645D will have a benefit when it comes to sensor tech.

Pentax 645D vs Pentax P70 sensor size comparison

Pentax 645D vs Pentax P70 Screen and ViewFinder

Pentax 645D vs Pentax P70 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645D Portrait photography info
Pentax P70 Portrait photography info
77
focusing manually
resolution is amazing (40MP)
sensor size is big (Medium format)
supports RAW files
doesn't have liveview
27
manual focus
lack of manual exposure
can't use external flash
resolution not great (12MP)
sensor is small (1/2.3")
no RAW files
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Street Comparison

Pentax 645D Street photography highlights
Pentax P70 Street photography highlights
58
sensor size is big (Medium format)
supports RAW files
environment proof
no articulating screen
lack of image stabilization
47
screen is fixed
no image stabilization
sensor is small (1/2.3")
no RAW files
heavier than competition (155 grams)
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Sports Comparison

Sports photography with Pentax 645D
Sports photography with Pentax P70
63
resolution is amazing (40MP)
sensor size is big (Medium format)
environment proof
comes with phase detect autofocus
doesn't have liveview
max fps very slow (1.0 frames/s)
lack of image stabilization
bad battery pack (800 shots)
17
max shutter speed is low (1/1,000 seconds)
no shutter priority mode
no image stabilization
resolution not great (12MP)
sensor is small (1/2.3")
no phase detect auto focus
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Travel Comparison

Pentax 645D Travel photography information
Pentax P70 Travel photography information
55
environment proof
resolution is amazing (40MP)
bad battery pack (800 CIPA)
display isn't selfie friendly
56
built-in flash
quite wide (28mm)
no Time Lapse recording
heavier than competition (155g)
resolution not great (12 megapixels)
does not posses selfie friendly display
somewhat slow maximum aperture (f2.8)
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Landscape Comparison

Pentax 645D Landscape photography factors
Pentax P70 Landscape photography factors
72
focusing manually
interchangeable lenses (Pentax 645AF2 mount)
nice screen size (3 inch)
resolution is amazing (40 megapixels)
sensor size is big (Medium format)
no anti aliasing filter
supports RAW files
environment proof
2 card slots
doesn't have liveview
lack of image stabilization
bad battery pack (800 shots)
32
manual focus
quite wide (28mm)
fixed lens (fixed lens mount)
somewhat slow maximum aperture (f2.8)
screen is small (2.7")
lack of manual exposure
no image stabilization
resolution not great (12 megapixels)
sensor is small (1/2.3")
no RAW files
no Time Lapse recording
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Vlogging Comparison

Pentax 645D Vlogging details
Pentax P70 Vlogging details
9
no video shooting
25
quite wide (28mm)
somewhat slow maximum aperture (f2.8)
does not posses selfie friendly display
no image stabilization
video res low (1280 x 720 resolution)
no external mic socket
heavier than competition (155 grams)
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Pentax 645D vs Pentax P70 Specifications

Detailed spec comparison table for Pentax 645D and Pentax P70
 Pentax 645DPentax Optio P70
General Information
Company Pentax Pentax
Model Pentax 645D Pentax Optio P70
Category Pro DSLR Ultracompact
Revealed 2010-03-10 2009-03-02
Physical type Large SLR Ultracompact
Sensor Information
Chip Prime II -
Sensor type CCD CCD
Sensor size Medium format 1/2.3"
Sensor dimensions 44 x 33mm 6.17 x 4.55mm
Sensor area 1,452.0mm² 28.1mm²
Sensor resolution 40MP 12MP
Anti aliasing filter
Aspect ratio 4:3 -
Highest Possible resolution 7264 x 5440 4000 x 3000
Maximum native ISO 1600 6400
Lowest native ISO 200 64
RAW data
Lowest enhanced ISO 100 -
Autofocusing
Manual focus
Touch focus
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points 11 9
Lens
Lens mounting type Pentax 645AF2 fixed lens
Lens focal range - 28-110mm (3.9x)
Max aperture - f/2.8-5.0
Macro focus distance - 10cm
Amount of lenses 6 -
Crop factor 0.8 5.8
Screen
Display type Fixed Type Fixed Type
Display diagonal 3 inches 2.7 inches
Display resolution 921 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch display
Display technology TFT Color LCD with wide-viewing angle and with AR coating -
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 98% -
Viewfinder magnification 0.85x -
Features
Minimum shutter speed 30s 4s
Fastest shutter speed 1/4000s 1/1000s
Continuous shutter rate 1.0 frames per second -
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Change white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash 4.60 m
Flash options Auto, On, Off, Red-eye, Slow Sync, Rear Curtain -
External flash
AEB
White balance bracketing
Fastest flash synchronize 1/125s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions - 1280 x 720 (15 fps), 848 x 480 (15 fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Maximum video resolution None 1280x720
Video file format - Motion JPEG
Mic port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1480g (3.26 pounds) 155g (0.34 pounds)
Physical dimensions 156 x 117 x 119mm (6.1" x 4.6" x 4.7") 97 x 54 x 22mm (3.8" x 2.1" x 0.9")
DXO scores
DXO Overall score 82 not tested
DXO Color Depth score 24.6 not tested
DXO Dynamic range score 12.6 not tested
DXO Low light score 1262 not tested
Other
Battery life 800 pictures -
Battery type Battery Pack -
Battery model D-LI90 -
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse shooting
Type of storage SD/SDHC SD/SDHC, Internal
Card slots 2 1
Pricing at release $4,000 $200