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Pentax 645D vs Pentax K-1 II

Portability
50
Imaging
76
Features
52
Overall
66
Pentax 645D front
 
Pentax K-1 Mark II front
Portability
55
Imaging
78
Features
82
Overall
79

Pentax 645D vs Pentax K-1 II Key Specs

Pentax 645D
(Full Review)
  • 40MP - Medium format Sensor
  • 3" Fixed Screen
  • ISO 200 - 1600
  • No Anti-Alias Filter
  • No Video
  • Pentax 645AF2 Mount
  • 1480g - 156 x 117 x 119mm
  • Introduced March 2010
  • Refreshed by Pentax 645Z
Pentax K-1 II
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Display
  • ISO 100 - 819200
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF4 Mount
  • 1010g - 137 x 110 x 86mm
  • Announced February 2018
  • Replaced the Pentax K-1
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Pentax 645D vs Pentax K-1 II Overview

Lets look a little more in depth at the Pentax 645D versus Pentax K-1 II, one is a Pro DSLR and the other is a Advanced DSLR and they are both offered by Pentax. The image resolution of the 645D (40MP) and the K-1 II (36MP) is very comparable but the 645D (Medium format) and K-1 II (Full frame) feature different sensor sizing.

Photography Glossary

The 645D was brought out 9 years prior to the K-1 II which is a fairly significant gap as far as camera technology is concerned. Each of the cameras offer different body type with the Pentax 645D being a Large SLR camera and the Pentax K-1 II being a Mid-size SLR camera.

Before getting straight into a full comparison, below is a concise overview of how the 645D scores versus the K-1 II with regard to portability, imaging, features and an overall mark.

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Reasons to pick Pentax 645D over the Pentax K-1 II

 645D K-1 II 

Reasons to pick Pentax K-1 II over the Pentax 645D

 K-1 II 645D 
AnnouncedFebruary 2018March 2010Newer by 96 months
Display typeFully ArticulatedFixed Fully Articulating display
Display sizing3.2"3"Larger display (+0.2")
Display resolution1037k921kClearer display (+116k dot)

Common features in the Pentax 645D and Pentax K-1 II

 645D K-1 II 
Focus manually More accurate focusing
Selfie screen Neither includes selfie screen
Touch display Neither includes Touch display

Pentax 645D vs Pentax K-1 II Physical Comparison

For those who are looking to travel with your camera, you need to think about its weight and size. The Pentax 645D features exterior measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs) whilst the Pentax K-1 II has specifications of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") and a weight of 1010 grams (2.23 lbs).

See the Pentax 645D versus Pentax K-1 II in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will differ depending on the lens you are utilizing at that moment. Here is the front view dimension comparison of the 645D and the K-1 II.

Pentax 645D vs Pentax K-1 II size comparison

Taking into account dimensions and weight, the portability grade of the 645D and K-1 II is 50 and 55 respectively.

Pentax 645D vs Pentax K-1 II top view buttons comparison

Pentax 645D vs Pentax K-1 II Sensor Comparison

Normally, it is very difficult to visualize the contrast in sensor dimensions only by going through specifications. The pic below might offer you a far better sense of the sensor sizing in the 645D and K-1 II.

Plainly, each of these cameras enjoy different megapixel count and different sensor dimensions. The 645D due to its larger sensor is going to make achieving shallow depth of field easier and the Pentax 645D will show more detail having its extra 4 Megapixels. Greater resolution will enable you to crop images far more aggressively. The more aged 645D will be disadvantaged with regard to sensor innovation.

Pentax 645D vs Pentax K-1 II sensor size comparison

Pentax 645D vs Pentax K-1 II Screen and ViewFinder

Pentax 645D vs Pentax K-1 II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645D Portrait photography information
Pentax K-1 II Portrait photography information
77
focusing manually
fantastic megapixels (40MP)
big sensor size (Medium format)
supports RAW formats
no liveview feature
86
manual focus
sensor resolution is great (36 megapixels)
sensor size is big (Full frame)
features face detection autofocus
saves RAW files
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Street Comparison

Pentax 645D Street photography details
Pentax K-1 II Street photography details
58
big sensor size (Medium format)
supports RAW formats
environment proof
no moving screen
does not have image stabilization
70
fully articulated screen
image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
saves RAW files
weather proofing
great ISO range (819,200)
more heavy than competition (1,010 grams)
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Sports Comparison

Pentax 645D Sports photography details
Pentax K-1 II Sports photography details
63
fantastic megapixels (40 megapixels)
big sensor size (Medium format)
environment proof
supports phase detect auto focus
no liveview feature
max frames per second low (1.0 frames/s)
does not have image stabilization
bad battery pack (800 per charge)
77
high shutter speed (1/8,000s)
image stabilization (Sensor based 5-axis)
sensor resolution is great (36 megapixels)
sensor size is big (Full frame)
features tracking autofocus
weather proofing
comes with phase detect autofocus
max fps very slow (4.4 frames per second)
bad battery (670 per charge)
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Travel Comparison

Pentax 645D Travel photography factors
Pentax K-1 II Travel photography factors
55
environment proof
fantastic megapixels (40 megapixels)
bad battery pack (800 per charge)
does not have selfie friendly display
53
weather proofing
sensor resolution is great (36 megapixels)
bad battery (670 CIPA)
more heavy than competition (1,010g)
screen isn't selfie friendly
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Landscape Comparison

Landscape photography with Pentax 645D
Landscape photography with Pentax K-1 II
72
focusing manually
switch lenses (Pentax 645AF2 mount)
pretty good screen size (3 inches)
fantastic megapixels (40 megapixels)
big sensor size (Medium format)
does not have low pass filter
supports RAW formats
environment proof
has double storage slots
no liveview feature
does not have image stabilization
bad battery pack (800 CIPA)
82
manual focus
swap lenses (Pentax KAF4 mount)
screen size is good (3.2 inch)
image stabilization (Sensor based 5-axis)
sensor resolution is great (36 megapixels)
sensor size is big (Full frame)
does not have anti-alias filter
great ISO range (819,200)
saves RAW files
weather proofing
2 card slots
bad battery (670 CIPA)
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Vlogging Comparison

Vlogging with Pentax 645D
Vlogging with Pentax K-1 II
9
no video shooting
32
image stabilization (Sensor based 5-axis)
features face detection autofocus
video res high (1920 x 1080 resolution)
does have external microphone support
screen isn't selfie friendly
more heavy than competition (1,010g)
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Pentax 645D vs Pentax K-1 II Specifications

Detailed spec comparison table for Pentax 645D and Pentax K-1 II
 Pentax 645DPentax K-1 Mark II
General Information
Company Pentax Pentax
Model Pentax 645D Pentax K-1 Mark II
Type Pro DSLR Advanced DSLR
Introduced 2010-03-10 2018-02-22
Physical type Large SLR Mid-size SLR
Sensor Information
Chip Prime II PRIME IV
Sensor type CCD CMOS
Sensor size Medium format Full frame
Sensor measurements 44 x 33mm 35.9 x 24mm
Sensor area 1,452.0mm² 861.6mm²
Sensor resolution 40 megapixels 36 megapixels
Anti aliasing filter
Aspect ratio 4:3 3:2
Full resolution 7264 x 5440 7360 x 4912
Max native ISO 1600 819200
Lowest native ISO 200 100
RAW photos
Lowest boosted ISO 100 -
Autofocusing
Manual focus
Touch focus
AF continuous
AF single
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points 11 33
Cross focus points - 25
Lens
Lens mounting type Pentax 645AF2 Pentax KAF4
Amount of lenses 6 151
Crop factor 0.8 1
Screen
Screen type Fixed Type Fully Articulated
Screen diagonal 3 inch 3.2 inch
Resolution of screen 921 thousand dots 1,037 thousand dots
Selfie friendly
Liveview
Touch function
Screen tech 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 0.7x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/4000 seconds 1/8000 seconds
Continuous shooting rate 1.0 frames/s 4.4 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash range no built-in flash no built-in flash
Flash settings Auto, On, Off, Red-eye, Slow Sync, Rear Curtain Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync
External flash
AEB
WB bracketing
Maximum flash synchronize 1/125 seconds 1/200 seconds
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)
Max video resolution None 1920x1080
Video data format - MPEG-4, H.264
Microphone support
Headphone support
Connectivity
Wireless None Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Built-in
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1480g (3.26 pounds) 1010g (2.23 pounds)
Dimensions 156 x 117 x 119mm (6.1" x 4.6" x 4.7") 137 x 110 x 86mm (5.4" x 4.3" x 3.4")
DXO scores
DXO All around 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 photos 670 photos
Battery style Battery Pack Battery Pack
Battery model D-LI90 D-LI90
Self timer Yes (2 or 10 sec) Yes (2 or 12 sec, custom)
Time lapse shooting
Storage type SD/SDHC Dual SD/SDHC/SDXC (UHS-I)
Card slots Dual Dual
Launch pricing $4,000 $1,737