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Pentax 645Z vs Sony RX100 V

Portability
49
Imaging
81
Features
74
Overall
78
Pentax 645Z front
 
Sony Cyber-shot DSC-RX100 V front
Portability
89
Imaging
53
Features
80
Overall
63

Pentax 645Z vs Sony RX100 V Key Specs

Pentax 645Z
(Full Review)
  • 51MP - Medium format Sensor
  • 3.2" Tilting Display
  • ISO 100 - 204800
  • No Anti-Alias Filter
  • 1920 x 1080 video
  • Pentax 645AF2 Mount
  • 1550g - 156 x 117 x 123mm
  • Revealed April 2014
  • Succeeded the Pentax 645D
Sony RX100 V
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Bump to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-70mm (F1.8-2.8) lens
  • 299g - 102 x 58 x 41mm
  • Announced October 2016
  • Old Model is Sony RX100 IV
  • Successor is Sony RX100 VI
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Pentax 645Z vs Sony RX100 V Overview

Following is a detailed overview of the Pentax 645Z versus Sony RX100 V, one is a Pro DSLR and the latter is a Large Sensor Compact by manufacturers Pentax and Sony. There exists a sizeable gap between the resolutions of the 645Z (51MP) and RX100 V (20MP) and the 645Z (Medium format) and RX100 V (1") posses different sensor dimensions.

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The 645Z was manufactured 3 years before the RX100 V which is quite a large gap as far as technology is concerned. Both the cameras have different body design with the Pentax 645Z being a Large SLR camera and the Sony RX100 V being a Large Sensor Compact camera.

Before we go straight to a full comparison, here is a simple highlight of how the 645Z matches up versus the RX100 V with respect to portability, imaging, features and an overall score.

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Reasons to pick Pentax 645Z over the Sony RX100 V

 645Z RX100 V 
Screen dimensions3.2"3"Bigger screen (+0.2")

Reasons to pick Sony RX100 V over the Pentax 645Z

 RX100 V 645Z 
AnnouncedOctober 2016April 2014More modern by 30 months
Screen resolution1229k1037kSharper screen (+192k dot)
Selfie screen Take selfies

Common features in the Pentax 645Z and Sony RX100 V

 645Z RX100 V 
Manually focus Very exact focusing
Screen typeTiltingTiltingTilting screen
Touch screen Absent Touch screen

Pentax 645Z vs Sony RX100 V Physical Comparison

For those who are intending to carry around your camera frequently, you need to factor its weight and volume. The Pentax 645Z enjoys outer measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs) whilst the Sony RX100 V has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") along with a weight of 299 grams (0.66 lbs).

Look at the Pentax 645Z versus Sony RX100 V in the all new Camera with 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 have chosen at that time. The following is a front view over all size comparison of the 645Z against the RX100 V.

Pentax 645Z vs Sony RX100 V size comparison

Taking into consideration dimensions and weight, the portability score of the 645Z and RX100 V is 49 and 89 respectively.

Pentax 645Z vs Sony RX100 V top view buttons comparison

Pentax 645Z vs Sony RX100 V Sensor Comparison

Normally, its difficult to picture the difference between sensor sizes simply by going over specifications. The pic underneath should provide you a better sense of the sensor sizing in the 645Z and RX100 V.

Plainly, the two cameras provide different megapixel count and different sensor sizes. The 645Z featuring a bigger sensor is going to make achieving shallower depth of field less difficult and the Pentax 645Z will offer you extra detail due to its extra 31MP. Higher resolution will allow you to crop pictures more aggressively. The more aged 645Z is going to be disadvantaged when it comes to sensor technology.

Pentax 645Z vs Sony RX100 V sensor size comparison

Pentax 645Z vs Sony RX100 V Screen and ViewFinder

Pentax 645Z vs Sony RX100 V Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645Z Portrait photography factors
Sony RX100 V Portrait photography factors
88
has manual focus
MP count amazing (51MP)
great sensor size (Medium format)
offers face detect focusing
saves RAW formats
66
has manual focus
above average flash sync speed (1/2,000s)
megapixel count good (20MP)
decent sensor size (1")
includes face detect focus
saves RAW files
no external flash support
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Street Comparison

Pentax 645Z as a Street photography camera
Sony RX100 V as a Street photography camera
63
tilting screen
great sensor size (Medium format)
saves RAW formats
environment proofing
good ISO range (204,800)
lack of image stabilization
heavier than competitors (1,550g)
85
screen tilts up and down
image stabilization (Optical)
decent sensor size (1")
saves RAW files
lighter than average in class (299g)
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Sports Comparison

Pentax 645Z Sports photography information
Sony RX100 V Sports photography information
71
MP count amazing (51MP)
great sensor size (Medium format)
offers tracking focus
environment proofing
has phase detect AF
very slow continuous shooting (3.0 frames/s)
lack of image stabilization
bad battery (650 CIPA)
70
quiet shooting (1/32,000s)
high max fps (24.0 frames per second)
image stabilization (Optical)
megapixel count good (20 megapixels)
decent sensor size (1")
includes tracking focus
comes with phase detect auto focus
not so great battery (220 CIPA)
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Travel Comparison

Pentax 645Z Travel photography details
Sony RX100 V Travel photography details
51
environment proofing
MP count amazing (51MP)
bad battery (650 CIPA)
heavier than competitors (1,550g)
doesn't have selfie friendly display
80
lighter than average in class (299 grams)
megapixel count good (20 megapixels)
built-in flash
display is selfie friendly
fairly wide (24mm)
great maximum aperture (f1.8)
not so great battery (220 CIPA)
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Landscape Comparison

Pentax 645Z Landscape photography advice
Sony RX100 V Landscape photography advice
78
has manual focus
interchangeable lenses (Pentax 645AF2 mount)
pretty good screen size (3.2 inch)
MP count amazing (51MP)
great sensor size (Medium format)
doesnt have anti aliasing filter
good ISO range (204,800)
saves RAW formats
environment proofing
has dual storage slots
lack of image stabilization
bad battery (650 CIPA)
70
has manual focus
fairly wide (24mm)
great maximum aperture (f1.8)
pretty good screen size (3 inch)
image stabilization (Optical)
megapixel count good (20 megapixels)
decent sensor size (1")
saves RAW files
lens is fixed (fixed lens mount)
not so great battery (220 CIPA)
Photography Glossary

Vlogging Comparison

Pentax 645Z Vlogging information
Sony RX100 V Vlogging information
27
offers face detect focusing
high quality video (1920 x 1080 pxls)
has mic jack
doesn't have selfie friendly display
lack of image stabilization
heavier than competitors (1,550g)
81
fairly wide (24mm)
great maximum aperture (f1.8)
display is selfie friendly
image stabilization (Optical)
includes face detect focus
video resolution high (3840 x 2160 resolution)
lighter than average in class (299g)
lack of microphone support
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Pentax 645Z vs Sony RX100 V Specifications

Detailed spec comparison table for Pentax 645Z and Sony RX100 V
 Pentax 645ZSony Cyber-shot DSC-RX100 V
General Information
Brand Name Pentax Sony
Model Pentax 645Z Sony Cyber-shot DSC-RX100 V
Category Pro DSLR Large Sensor Compact
Revealed 2014-04-15 2016-10-06
Physical type Large SLR Large Sensor Compact
Sensor Information
Processor Chip PRIME III Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Medium format 1"
Sensor measurements 44 x 33mm 13.2 x 8.8mm
Sensor surface area 1,452.0mm² 116.2mm²
Sensor resolution 51 megapixel 20 megapixel
Anti aliasing filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Maximum resolution 8256 x 6192 5472 x 3648
Maximum native ISO 204800 12800
Maximum boosted ISO - 25600
Minimum native ISO 100 125
RAW images
Minimum boosted ISO - 80
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points 27 315
Lens
Lens mounting type Pentax 645AF2 fixed lens
Lens focal range - 24-70mm (2.9x)
Highest aperture - f/1.8-2.8
Macro focus range - 5cm
Total lenses 6 -
Crop factor 0.8 2.7
Screen
Display type Tilting Tilting
Display diagonal 3.2 inch 3 inch
Display resolution 1,037 thousand dots 1,229 thousand dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 2,359 thousand dots
Viewfinder coverage 98% 100%
Viewfinder magnification 0.85x 0.59x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/4000 seconds 1/2000 seconds
Maximum quiet shutter speed - 1/32000 seconds
Continuous shooting rate 3.0fps 24.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash range no built-in flash 10.20 m (at Auto ISO)
Flash settings 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
White balance bracketing
Maximum flash synchronize 1/125 seconds 1/2000 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Maximum video resolution 1920x1080 3840x2160
Video data format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Microphone support
Headphone support
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1550 gr (3.42 lb) 299 gr (0.66 lb)
Physical dimensions 156 x 117 x 123mm (6.1" x 4.6" x 4.8") 102 x 58 x 41mm (4.0" x 2.3" x 1.6")
DXO scores
DXO All around score 101 70
DXO Color Depth score 26.0 22.8
DXO Dynamic range score 14.7 12.4
DXO Low light score 4505 586
Other
Battery life 650 shots 220 shots
Type of battery Battery Pack Battery Pack
Battery model D-LI90 NP-BX1
Self timer Yes (2 or 10 secs) Yes
Time lapse feature With downloadable app
Type of storage Dual SD/SDHC/SDXC slots SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Card slots 2 1
Cost at launch $5,024 $998