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Nikon D6 vs Pentax 645D

Portability
50
Imaging
74
Features
85
Overall
78
Nikon D6 front
 
Pentax 645D front
Portability
50
Imaging
76
Features
52
Overall
66

Nikon D6 vs Pentax 645D Key Specs

Nikon D6
(Full Review)
  • 21MP - Full frame Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 102400 (Raise to 3280000)
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Nikon F Mount
  • 1270g - 160 x 163 x 92mm
  • Released February 2020
  • Old Model is Nikon D5
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
  • Launched March 2010
  • Replacement is Pentax 645Z
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Nikon D6 vs Pentax 645D Overview

The following is a extended comparison of the Nikon D6 versus Pentax 645D, both Pro DSLR cameras by manufacturers Nikon and Pentax. There is a sizable difference among the resolutions of the D6 (21MP) and 645D (40MP) and the D6 (Full frame) and 645D (Medium format) boast totally different sensor size.

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The D6 was brought out 10 years after the 645D which is a fairly significant difference as far as camera tech is concerned. Both of the cameras feature the same body design (Large SLR).

Before going right into a thorough comparison, here is a quick introduction of how the D6 matches up against the 645D in relation to portability, imaging, features and an overall mark.

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Reasons to pick Nikon D6 over the Pentax 645D

 D6 645D 
LaunchedFebruary 2020March 2010Newer by 121 months
Screen size3.2"3"Bigger screen (+0.2")
Screen resolution2359k921kCrisper screen (+1438k dot)
Touch friendly screen Quickly navigate

Reasons to pick Pentax 645D over the Nikon D6

 645D D6 

Common features in the Nikon D6 and Pentax 645D

 D6 645D 
Manual focus More exact focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Neither has selfie screen

Nikon D6 vs Pentax 645D Physical Comparison

If you are aiming to travel with your camera, you have to consider its weight and measurements. The Nikon D6 has outside dimensions of 160mm x 163mm x 92mm (6.3" x 6.4" x 3.6") accompanied by a weight of 1270 grams (2.80 lbs) while the Pentax 645D has proportions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") with a weight of 1480 grams (3.26 lbs).

Analyze the Nikon D6 versus Pentax 645D in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will differ dependant on the lens you are utilizing during that time. Underneath is a front view dimensions comparison of the D6 against the 645D.

Nikon D6 vs Pentax 645D size comparison

Taking into account size and weight, the portability rating of the D6 and 645D is 50 and 50 respectively.

Nikon D6 vs Pentax 645D top view buttons comparison

Nikon D6 vs Pentax 645D Sensor Comparison

Usually, its difficult to visualise the difference in sensor dimensions just by viewing a spec sheet. The image underneath might give you a more clear sense of the sensor dimensions in the D6 and 645D.

Clearly, both the cameras come with different resolutions and different sensor dimensions. The D6 due to its smaller sensor will make shooting shallower DOF harder and the Pentax 645D will render more detail having its extra 19 Megapixels. Higher resolution can also let you crop photographs a good deal more aggressively. The more recent D6 will have an edge in sensor tech.

Nikon D6 vs Pentax 645D sensor size comparison

Nikon D6 vs Pentax 645D Screen and ViewFinder

Nikon D6 vs Pentax 645D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Nikon D6 Portrait photography info
Pentax 645D Portrait photography info
84
manual focus
megapixel count decent (21MP)
sensor size is large (Full frame)
supports face detect focusing
supports RAW formats
77
focusing manually
high sensor resolution (40MP)
sensor size is large (Medium format)
saves RAW files
no liveview feature
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Street Comparison

Nikon D6 Street photography information
Pentax 645D Street photography information
62
sensor size is large (Full frame)
supports RAW formats
supports focus by touch
environment sealing
above average high ISO (102,400)
screen does not articulate
does not have image stabilization
58
sensor size is large (Medium format)
saves RAW files
environment proof
no moving screen
does not have image stabilization
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Sports Comparison

Nikon D6 Sports photography features
Pentax 645D Sports photography features
80
maximum shutter speed is high (1/8,000s)
megapixel count decent (21 megapixels)
sensor size is large (Full frame)
supports tracking focus
environment sealing
good battery pack (3,580 per charge)
supports phase detect AF
does not have image stabilization
63
high sensor resolution (40 megapixels)
sensor size is large (Medium format)
environment proof
sensor has phase detect auto focus
no liveview feature
max frames per second low (1.0 fps)
does not have image stabilization
low battery (800 per charge)
Photography Glossary

Travel Comparison

Nikon D6 Travel photography highlights
Pentax 645D Travel photography highlights
68
good battery pack (3,580 CIPA)
environment sealing
supports bluetooth
supports focus by touch
megapixel count decent (21 megapixels)
does not offer selfie friendly screen
55
environment proof
high sensor resolution (40MP)
low battery (800 per charge)
screen isn't selfie friendly
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Landscape Comparison

Nikon D6 as a Landscape photography camera
Pentax 645D as a Landscape photography camera
80
manual focus
swap lenses (Nikon F mount)
decent sized screen (3.2")
megapixel count decent (21 megapixels)
sensor size is large (Full frame)
above average high ISO (102,400)
supports RAW formats
environment sealing
good battery pack (3,580 shots)
two card slots
does not have image stabilization
72
focusing manually
change lenses (Pentax 645AF2 mount)
pretty good screen size (3 inches)
high sensor resolution (40 megapixels)
sensor size is large (Medium format)
no anti aliasing filter
saves RAW files
environment proof
2 card slots
no liveview feature
does not have image stabilization
low battery (800 per charge)
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Vlogging Comparison

Vlogging with Nikon D6
Vlogging with Pentax 645D
30
has touchscreen
supports face detect focusing
high video quality (3840 x 2160 resolution)
comes with microphone socket
does not offer selfie friendly screen
does not have image stabilization
9
no video recording
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Nikon D6 vs Pentax 645D Specifications

Detailed spec comparison table for Nikon D6 and Pentax 645D
 Nikon D6Pentax 645D
General Information
Company Nikon Pentax
Model Nikon D6 Pentax 645D
Category Pro DSLR Pro DSLR
Released 2020-02-11 2010-03-10
Physical type Large SLR Large SLR
Sensor Information
Processor Expeed 6 Prime II
Sensor type CMOS CCD
Sensor size Full frame Medium format
Sensor dimensions 35.9 x 23.9mm 44 x 33mm
Sensor area 858.0mm² 1,452.0mm²
Sensor resolution 21 megapixels 40 megapixels
Anti aliasing filter
Aspect ratio 1:1, 5:4, 3:2 and 16:9 4:3
Full resolution 5568 x 3712 7264 x 5440
Max native ISO 102400 1600
Max boosted ISO 3280000 -
Min native ISO 100 200
RAW support
Min boosted ISO 50 100
Autofocusing
Manual focus
Autofocus touch
Continuous autofocus
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 105 11
Cross focus points 105 -
Lens
Lens mounting type Nikon F Pentax 645AF2
Available lenses 309 6
Focal length multiplier 1 0.8
Screen
Type of screen Fixed Type Fixed Type
Screen sizing 3.2 inch 3 inch
Resolution of screen 2,359 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch screen
Screen technology - TFT Color LCD with wide-viewing angle and with AR coating
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100% 98%
Viewfinder magnification 0.72x 0.85x
Features
Slowest shutter speed 900s 30s
Maximum shutter speed 1/8000s 1/4000s
Continuous shooting rate 14.0fps 1.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set white balance
Image stabilization
Built-in flash
Flash range no built-in flash no built-in flash
Flash modes Normal, redeye reduction, slow sync, slow sync w/redeye reduction, rear-curtain sync, off Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
Hot shoe
AEB
WB bracketing
Maximum flash synchronize - 1/125s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 3840 x 2160 @ 30p, MOV, H.264, Linear PCM3840 x 2160 @ 25p, MOV, H.264, Linear PCM3840 x 2160 @ 24p, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 50p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 25p, MOV, H.264, Linear PCM1920 x 1080 @ 24p, MOV, H.264, Linear PCM -
Max video resolution 3840x2160 None
Video file format MPEG-4, H.264 -
Mic support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS Built-in None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1270 grams (2.80 lbs) 1480 grams (3.26 lbs)
Physical dimensions 160 x 163 x 92mm (6.3" x 6.4" x 3.6") 156 x 117 x 119mm (6.1" x 4.6" x 4.7")
DXO scores
DXO All around score not tested 82
DXO Color Depth score not tested 24.6
DXO Dynamic range score not tested 12.6
DXO Low light score not tested 1262
Other
Battery life 3580 shots 800 shots
Battery style Battery Pack Battery Pack
Battery model - D-LI90
Self timer Yes Yes (2 or 10 sec)
Time lapse shooting
Storage type Dual XQD/CFexpress slots SD/SDHC
Card slots Two Two
Launch price $6,496 $4,000