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Pentax 645Z vs Sony TX100V

Portability
49
Imaging
79
Features
74
Overall
77
Pentax 645Z front
 
Sony Cyber-shot DSC-TX100V front
Portability
95
Imaging
38
Features
40
Overall
38

Pentax 645Z vs Sony TX100V 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
  • Announced April 2014
  • Earlier Model is Pentax 645D
Sony TX100V
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3.5" Fixed Display
  • ISO 125 - 3200
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F3.5-4.6) lens
  • 147g - 97 x 59 x 18mm
  • Introduced January 2011
Photography Glossary

Pentax 645Z vs Sony TX100V Overview

Below is a comprehensive assessment of the Pentax 645Z vs Sony TX100V, former being a Pro DSLR while the other is a Ultracompact by rivals Pentax and Sony. There exists a considerable gap between the image resolutions of the 645Z (51MP) and TX100V (16MP) and the 645Z (Medium format) and TX100V (1/2.3") enjoy different sensor dimensions.

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The 645Z was launched 3 years later than the TX100V and that is quite a large difference as far as technology is concerned. Both of the cameras offer different body type with the Pentax 645Z being a Large SLR camera and the Sony TX100V being a Ultracompact camera.

Before going through a more detailed comparison, below is a short summation of how the 645Z matches up vs the TX100V in terms of portability, imaging, features and an overall grade.

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Reasons to pick Pentax 645Z over the Sony TX100V

 645Z TX100V 
IntroducedApril 2014January 2011More recent by 40 months
Focus manually More exact focusing
Display typeTiltingFixed Tilting display

Reasons to pick Sony TX100V over the Pentax 645Z

 TX100V 645Z 
Display sizing3.5"3.2"Larger display (+0.3")
Display resolution1229k1037kClearer display (+192k dot)
Touch friendly display Easily navigate

Common features in the Pentax 645Z and Sony TX100V

 645Z TX100V 
Selfie screen Neither has selfie screen

Pentax 645Z vs Sony TX100V Physical Comparison

When you are intending to lug around your camera regularly, you will have to take into account its weight and dimensions. The Pentax 645Z has exterior dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") along with a weight of 1550 grams (3.42 lbs) and the Sony TX100V has dimensions of 97mm x 59mm x 18mm (3.8" x 2.3" x 0.7") having a weight of 147 grams (0.32 lbs).

Look at the Pentax 645Z vs Sony TX100V in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will vary dependant on the lens you have chosen during that time. The following is the front view measurement comparison of the 645Z versus the TX100V.

Pentax 645Z vs Sony TX100V size comparison

Taking into consideration dimensions and weight, the portability rating of the 645Z and TX100V is 49 and 95 respectively.

Pentax 645Z vs Sony TX100V top view buttons comparison

Pentax 645Z vs Sony TX100V Sensor Comparison

Typically, it is very difficult to visualize the difference between sensor measurements merely by looking at specs. The photograph underneath will provide you a stronger sense of the sensor dimensions in the 645Z and TX100V.

As you can plainly see, both cameras offer different megapixels and different sensor measurements. The 645Z because of its larger sensor is going to make getting shallow depth of field simpler and the Pentax 645Z will resolve greater detail utilizing its extra 35 Megapixels. Greater resolution will allow you to crop photos a little more aggressively. The fresher 645Z provides an advantage when it comes to sensor technology.

Pentax 645Z vs Sony TX100V sensor size comparison

Pentax 645Z vs Sony TX100V Screen and ViewFinder

Pentax 645Z vs Sony TX100V Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645Z Portrait photography information
Sony TX100V Portrait photography information
87
has manual focus
megapixel count great (51MP)
sensor size is large (Medium format)
supports face detection focusing
exports RAW files
29
good resolution (16MP)
focusing manually not possible
no manual control
no external flash support
very small sensor (1/2.3")
lack of RAW support
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Street Comparison

Pentax 645Z Street photography highlights
Sony TX100V Street photography highlights
63
has a tilting screen
sensor size is large (Medium format)
exports RAW files
environment proofing
great high ISO (204,800)
lack of image stabilization
heavier than competition (1,550g)
60
image stabilization (Optical)
comes with touch focus
fixed screen
very small sensor (1/2.3")
lack of RAW support
heavier than average in class (147g)
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Sports Comparison

Pentax 645Z Sports photography information
Sony TX100V Sports photography information
70
megapixel count great (51 megapixels)
sensor size is large (Medium format)
supports tracking autofocus
environment proofing
comes with phase detect AF
slow continuous shooting (3.0 fps)
lack of image stabilization
terrible battery power (650 CIPA)
39
image stabilization (Optical)
good resolution (16MP)
lack of shutter priority mode
very small sensor (1/2.3")
lack of phase detect AF
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Travel Comparison

Pentax 645Z Travel photography features
Sony TX100V Travel photography features
51
environment proofing
megapixel count great (51 megapixels)
terrible battery power (650 CIPA)
heavier than competition (1,550g)
doesn't posses selfie friendly display
65
comes with touch focus
good resolution (16MP)
has built in flash
relatively wide (25mm)
does not have Time Lapse recording
heavier than average in class (147 grams)
display is not selfie friendly
slow maximum aperture (f3.5)
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Landscape Comparison

Pentax 645Z Landscape photography info
Sony TX100V Landscape photography info
78
has manual focus
switch lenses (Pentax 645AF2 mount)
screen size is good (3.2 inches)
megapixel count great (51MP)
sensor size is large (Medium format)
does not have anti-alias filter
great high ISO (204,800)
exports RAW files
environment proofing
2 card slots
lack of image stabilization
terrible battery power (650 per charge)
42
relatively wide (25mm)
screen larger than average (3.5 inches)
image stabilization (Optical)
good resolution (16 megapixels)
focusing manually not possible
fixed lens (fixed lens mount)
slow maximum aperture (f3.5)
no manual control
very small sensor (1/2.3")
lack of RAW support
does not have Time Lapse recording
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Vlogging Comparison

Pentax 645Z Vlogging details
Sony TX100V Vlogging details
27
supports face detection focusing
high video quality (1920 x 1080 pixels)
does have external mic support
doesn't posses selfie friendly display
lack of image stabilization
heavier than competition (1,550 grams)
32
relatively wide (25mm)
has touchscreen
image stabilization (Optical)
high video quality (1920 x 1080 pxls)
slow maximum aperture (f3.5)
display is not selfie friendly
does not have mic socket
heavier than average in class (147 grams)
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Pentax 645Z vs Sony TX100V Specifications

Detailed spec comparison table for Pentax 645Z and Sony TX100V
 Pentax 645ZSony Cyber-shot DSC-TX100V
General Information
Company Pentax Sony
Model type Pentax 645Z Sony Cyber-shot DSC-TX100V
Category Pro DSLR Ultracompact
Announced 2014-04-15 2011-01-06
Physical type Large SLR Ultracompact
Sensor Information
Processor Chip PRIME III BIONZ
Sensor type CMOS BSI-CMOS
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 51 megapixels 16 megapixels
Anti alias filter
Aspect ratio 4:3 4:3 and 16:9
Peak resolution 8256 x 6192 4608 x 3456
Highest native ISO 204800 3200
Minimum native ISO 100 125
RAW pictures
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 27 9
Lens
Lens mount type Pentax 645AF2 fixed lens
Lens zoom range - 25-100mm (4.0x)
Highest aperture - f/3.5-4.6
Total lenses 6 -
Focal length multiplier 0.8 5.8
Screen
Display type Tilting Fixed Type
Display size 3.2 inch 3.5 inch
Resolution of display 1,037 thousand dots 1,229 thousand dots
Selfie friendly
Liveview
Touch display
Display technology - XtraFine OLED display with TruBlack technology
Viewfinder Information
Viewfinder type Optical (pentaprism) None
Viewfinder coverage 98% -
Viewfinder magnification 0.85x -
Features
Minimum shutter speed 30 seconds 2 seconds
Fastest shutter speed 1/4000 seconds 1/1600 seconds
Continuous shutter rate 3.0 frames per second 10.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Set WB
Image stabilization
Integrated flash
Flash distance no built-in flash 4.00 m
Flash modes 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 Auto, On, Off, Slow Sync
Hot shoe
Auto exposure bracketing
WB bracketing
Fastest flash synchronize 1/125 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) 1920 x 1080 (60 fps), 1440 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps)
Highest video resolution 1920x1080 1920x1080
Video file format MPEG-4, H.264 MPEG-4, AVCHD
Mic port
Headphone port
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional BuiltIn
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1550g (3.42 lbs) 147g (0.32 lbs)
Dimensions 156 x 117 x 123mm (6.1" x 4.6" x 4.8") 97 x 59 x 18mm (3.8" x 2.3" x 0.7")
DXO scores
DXO Overall rating 101 not tested
DXO Color Depth rating 26.0 not tested
DXO Dynamic range rating 14.7 not tested
DXO Low light rating 4505 not tested
Other
Battery life 650 pictures -
Type of battery Battery Pack -
Battery ID D-LI90 NP-BN1
Self timer Yes (2 or 10 secs) Yes (2 or 10 sec, Portrait 1/2)
Time lapse recording
Type of storage Dual SD/SDHC/SDXC slots SD/SDHC/SDXC/Memory Stick Duo/Memory Stick Pro Duo, Memory Stick Pro-HG Duo
Card slots Dual One
Pricing at release $5,024 $380