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Pentax 645D vs Pentax WG-2

Portability
50
Imaging
76
Features
52
Overall
66
Pentax 645D front
 
Pentax Optio WG-2 front
Portability
91
Imaging
39
Features
37
Overall
38

Pentax 645D vs Pentax WG-2 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
  • Released March 2010
  • New Model is Pentax 645Z
Pentax WG-2
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 125 - 6400
  • 1920 x 1080 video
  • 28-140mm (F3.5-5.5) lens
  • 192g - 122 x 61 x 30mm
  • Announced February 2012
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Pentax 645D vs Pentax WG-2 Overview

Here is a extended analysis of the Pentax 645D and Pentax WG-2, former being a Pro DSLR while the latter is a Waterproof and both are produced by Pentax. There exists a considerable gap between the sensor resolutions of the 645D (40MP) and WG-2 (16MP) and the 645D (Medium format) and WG-2 (1/2.3") possess totally different sensor sizes.

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The 645D was released 23 months before the WG-2 which makes the cameras a generation apart from one another. Both of these cameras offer different body type with the Pentax 645D being a Large SLR camera and the Pentax WG-2 being a Compact camera.

Before going in to a detailed comparison, below is a short summation of how the 645D grades against the WG-2 when it comes to portability, imaging, features and an overall rating.

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Reasons to pick Pentax 645D over the Pentax WG-2

 645D WG-2 
Screen resolution921k460kClearer screen (+461k dot)

Reasons to pick Pentax WG-2 over the Pentax 645D

 WG-2 645D 
AnnouncedFebruary 2012March 2010Fresher by 23 months

Common features in the Pentax 645D and Pentax WG-2

 645D WG-2 
Manually focus Dial precise focusing
Screen typeFixed Fixed Fixed screen
Screen sizing3"3"Equivalent screen dimensions
Selfie screen Neither has selfie screen
Touch screen Neither has Touch screen

Pentax 645D vs Pentax WG-2 Physical Comparison

For those who are planning to carry your camera often, you're going to have to factor its weight and size. The Pentax 645D has outside dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") along with a weight of 1480 grams (3.26 lbs) and the Pentax WG-2 has specifications of 122mm x 61mm x 30mm (4.8" x 2.4" x 1.2") and a weight of 192 grams (0.42 lbs).

Look at the Pentax 645D and Pentax WG-2 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will change dependant on the lens you are using at that moment. Below is the front view scale comparison of the 645D and the WG-2.

Pentax 645D vs Pentax WG-2 size comparison

Considering dimensions and weight, the portability score of the 645D and WG-2 is 50 and 91 respectively.

Pentax 645D vs Pentax WG-2 top view buttons comparison

Pentax 645D vs Pentax WG-2 Sensor Comparison

Sometimes, it is difficult to envision the gap between sensor sizing purely by reading through technical specs. The visual below should provide you a clearer sense of the sensor dimensions in the 645D and WG-2.

As you can tell, both the cameras offer different resolutions and different sensor sizing. The 645D featuring a bigger sensor will make achieving shallow DOF simpler and the Pentax 645D will give you extra detail as a result of its extra 24 Megapixels. Higher resolution can also help you crop pictures a little more aggressively. The older 645D is going to be behind when it comes to sensor innovation.

Pentax 645D vs Pentax WG-2 sensor size comparison

Pentax 645D vs Pentax WG-2 Screen and ViewFinder

Pentax 645D vs Pentax WG-2 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645D Portrait photography advice
Pentax WG-2 Portrait photography advice
77
focusing manually
megapixel count excellent (40MP)
big sensor size (Medium format)
saves RAW formats
does not have liveview
40
has manual focus
resolution is good (16 megapixels)
comes with face detection focus
no manual control
no external flash support
small sensor size (1/2.3")
doesn't have RAW files
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Street Comparison

Street photography with Pentax 645D
Street photography with Pentax WG-2
58
big sensor size (Medium format)
saves RAW formats
weather proofing
no articulating screen
lack of image stabilization
54
environment proofing
screen does not articulate
does not have image stabilization
small sensor size (1/2.3")
doesn't have RAW files
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Sports Comparison

Pentax 645D Sports photography features
Pentax WG-2 Sports photography features
63
megapixel count excellent (40MP)
big sensor size (Medium format)
weather proofing
supports phase detect auto focus
does not have liveview
slow frames per second (1.0 frames/s)
lack of image stabilization
not so great battery (800 per charge)
38
resolution is good (16 megapixels)
comes with tracking autofocus
environment proofing
max fps very slow (1.0 frames/s)
no shutter priority mode
does not have image stabilization
small sensor size (1/2.3")
doesn't have phase detect auto focus
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Travel Comparison

Pentax 645D Travel photography details
Pentax WG-2 Travel photography details
55
weather proofing
megapixel count excellent (40 megapixels)
not so great battery (800 CIPA)
doesn't have a selfie friendly display
70
environment proofing
resolution is good (16MP)
flash built-in
decently wide (28mm)
doesn't have selfie friendly display
sluggish maximum aperture (f3.5)
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Landscape Comparison

Pentax 645D Landscape photography advice
Pentax WG-2 Landscape photography advice
72
focusing manually
interchangeable lenses (Pentax 645AF2 mount)
screen is a good size (3")
megapixel count excellent (40 megapixels)
big sensor size (Medium format)
does not have anti aliasing filter
saves RAW formats
weather proofing
two card slots
does not have liveview
lack of image stabilization
not so great battery (800 shots)
47
has manual focus
decently wide (28mm)
good sized screen (3 inch)
resolution is good (16 megapixels)
environment proofing
lens is fixed (fixed lens mount)
sluggish maximum aperture (f3.5)
no manual control
does not have image stabilization
small sensor size (1/2.3")
doesn't have RAW files
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Vlogging Comparison

Pentax 645D Vlogging advice
Pentax WG-2 Vlogging advice
9
no video shooting
30
decently wide (28mm)
comes with face detection focus
high video quality (1920 x 1080 pxls)
sluggish maximum aperture (f3.5)
doesn't have selfie friendly display
does not have image stabilization
does not have external microphone jack
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Pentax 645D vs Pentax WG-2 Specifications

Detailed spec comparison table for Pentax 645D and Pentax WG-2
 Pentax 645DPentax Optio WG-2
General Information
Brand Pentax Pentax
Model type Pentax 645D Pentax Optio WG-2
Type Pro DSLR Waterproof
Released 2010-03-10 2012-02-07
Body design Large SLR Compact
Sensor Information
Chip Prime II -
Sensor type CCD BSI-CMOS
Sensor size Medium format 1/2.3"
Sensor measurements 44 x 33mm 6.17 x 4.55mm
Sensor surface area 1,452.0mm² 28.1mm²
Sensor resolution 40MP 16MP
Anti alias filter
Aspect ratio 4:3 1:1, 4:3 and 16:9
Maximum resolution 7264 x 5440 4288 x 3216
Maximum native ISO 1600 6400
Lowest native ISO 200 125
RAW pictures
Lowest boosted ISO 100 -
Autofocusing
Manual focusing
Touch to focus
AF continuous
AF single
AF tracking
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 11 9
Lens
Lens support Pentax 645AF2 fixed lens
Lens zoom range - 28-140mm (5.0x)
Maximal aperture - f/3.5-5.5
Macro focusing range - 1cm
Amount of lenses 6 -
Focal length multiplier 0.8 5.8
Screen
Display type Fixed Type Fixed Type
Display sizing 3 inch 3 inch
Resolution of display 921 thousand dot 460 thousand dot
Selfie friendly
Liveview
Touch friendly
Display tech TFT Color LCD with wide-viewing angle and with AR coating Widescreen TFT color LCD with anti-reflective coating
Viewfinder Information
Viewfinder type Optical (pentaprism) None
Viewfinder coverage 98% -
Viewfinder magnification 0.85x -
Features
Slowest shutter speed 30s 4s
Maximum shutter speed 1/4000s 1/4000s
Continuous shooting speed 1.0 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Change WB
Image stabilization
Built-in flash
Flash distance no built-in flash 5.40 m
Flash options Auto, On, Off, Red-eye, Slow Sync, Rear Curtain Auto, On, Off, Red-eye, Soft
External flash
AE bracketing
WB bracketing
Maximum flash sync 1/125s -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions - 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30, 15 fps)
Maximum video resolution None 1920x1080
Video format - MPEG-4, H.264
Microphone input
Headphone input
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1480 grams (3.26 pounds) 192 grams (0.42 pounds)
Dimensions 156 x 117 x 119mm (6.1" x 4.6" x 4.7") 122 x 61 x 30mm (4.8" x 2.4" x 1.2")
DXO scores
DXO All around 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 photos 260 photos
Form of battery Battery Pack Battery Pack
Battery ID D-LI90 D-LI92
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse shooting
Storage media SD/SDHC SD/SDHC/SDXC card, Internal
Storage slots 2 One
Cost at launch $4,000 $350