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Pentax 645Z vs Sony HX90V

Portability
49
Imaging
81
Features
74
Overall
78
Pentax 645Z front
 
Sony Cyber-shot DSC-HX90V front
Portability
91
Imaging
44
Features
63
Overall
51

Pentax 645Z vs Sony HX90V 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
  • Succeeded the Pentax 645D
Sony HX90V
(Full Review)
  • 18MP - 1/2.3" Sensor
  • 3" Tilting Display
  • ISO 80 - 12800
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 24-720mm (F3.5-6.4) lens
  • 245g - 102 x 58 x 36mm
  • Introduced April 2015
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Pentax 645Z vs Sony HX90V Overview

Let's look more in depth at the Pentax 645Z and Sony HX90V, one being a Pro DSLR and the other is a Small Sensor Superzoom by rivals Pentax and Sony. There is a big difference among the image resolutions of the 645Z (51MP) and HX90V (18MP) and the 645Z (Medium format) and HX90V (1/2.3") offer totally different sensor size.

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The 645Z was brought out 12 months prior to the HX90V so they are both of a similar generation. Both cameras feature different body design with the Pentax 645Z being a Large SLR camera and the Sony HX90V being a Compact camera.

Before we go into a full comparison, here is a quick highlight of how the 645Z grades against the HX90V for portability, imaging, features and an overall rating.

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Reasons to pick Pentax 645Z over the Sony HX90V

 645Z HX90V 
Display size3.2"3"Larger display (+0.2")
Display resolution1037k921kClearer display (+116k dot)

Reasons to pick Sony HX90V over the Pentax 645Z

 HX90V 645Z 
IntroducedApril 2015April 2014Fresher by 12 months
Selfie screen Take selfies

Common features in the Pentax 645Z and Sony HX90V

 645Z HX90V 
Manual focus Dial precise focusing
Display typeTiltingTiltingTilting display
Touch display Neither offers Touch display

Pentax 645Z vs Sony HX90V Physical Comparison

In case you're going to carry your camera, you should factor its weight and volume. The Pentax 645Z offers exterior dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") having a weight of 1550 grams (3.42 lbs) and the Sony HX90V has sizing of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") with a weight of 245 grams (0.54 lbs).

Check the Pentax 645Z and Sony HX90V in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilizing at that moment. Here is a front view overall size comparison of the 645Z vs the HX90V.

Pentax 645Z vs Sony HX90V size comparison

Considering size and weight, the portability grade of the 645Z and HX90V is 49 and 91 respectively.

Pentax 645Z vs Sony HX90V top view buttons comparison

Pentax 645Z vs Sony HX90V Sensor Comparison

Oftentimes, it's tough to envision the difference in sensor sizing only by looking through specifications. The photograph here should offer you a greater sense of the sensor dimensions in the 645Z and HX90V.

Plainly, both of the cameras feature different megapixels and different sensor sizing. The 645Z featuring a larger sensor will make shooting shallow DOF less difficult and the Pentax 645Z will provide you with more detail having its extra 33MP. Greater resolution will also enable you to crop pics way more aggressively. The older 645Z will be behind in sensor tech.

Pentax 645Z vs Sony HX90V sensor size comparison

Pentax 645Z vs Sony HX90V Screen and ViewFinder

Pentax 645Z vs Sony HX90V Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645Z Portrait photography features
Sony HX90V Portrait photography features
88
has manual focus
MP count high (51 megapixels)
sensor size is great (Medium format)
supports face detect focus
exports RAW files
46
you can focus manually
good resolution (18 megapixels)
includes face detect focusing
external flash not possible
sensor is small (1/2.3")
lacks RAW support
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Street Comparison

Pentax 645Z Street photography advice
Sony HX90V Street photography advice
63
tilting screen
sensor size is great (Medium format)
exports RAW files
environment proof
great ISO range (204,800)
lack of image stabilization
more heavy than others (1,550g)
70
screen tilts up and down
image stabilization (Optical)
lighter than competition in class (245g)
sensor is small (1/2.3")
lacks RAW support
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Sports Comparison

Sports photography with Pentax 645Z
Sports photography with Sony HX90V
71
MP count high (51 megapixels)
sensor size is great (Medium format)
supports tracking focus
environment proof
has phase detect auto focus
very slow continuous shooting (3.0 fps)
lack of image stabilization
terrible battery power (650 shots)
57
long zoom range (24-720mm 30.0 x zoom)
image stabilization (Optical)
good resolution (18MP)
includes tracking focus
better than average battery (360 per charge)
sensor is small (1/2.3")
lacks phase detect AF
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Travel Comparison

Pentax 645Z Travel photography highlights
Sony HX90V Travel photography highlights
51
environment proof
MP count high (51 megapixels)
terrible battery power (650 per charge)
more heavy than others (1,550g)
doesn't offer selfie friendly screen
76
better than average battery (360 per charge)
lighter than competition in class (245g)
good resolution (18 megapixels)
flash built-in
selfie friendly screen
decently wide (24mm)
long reach (720mm)
no Time Lapse mode
slow max aperture (f3.5)
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Landscape Comparison

Pentax 645Z Landscape photography highlights
Sony HX90V Landscape photography highlights
78
has manual focus
swap lenses (Pentax 645AF2 mount)
screen size is decent (3.2 inch)
MP count high (51 megapixels)
sensor size is great (Medium format)
no anti aliasing filter
great ISO range (204,800)
exports RAW files
environment proof
2 card slots
lack of image stabilization
terrible battery power (650 per charge)
53
you can focus manually
decently wide (24mm)
pretty good screen size (3")
image stabilization (Optical)
good resolution (18 megapixels)
better than average battery (360 shots)
lens is fixed (fixed lens mount)
slow max aperture (f3.5)
sensor is small (1/2.3")
lacks RAW support
no Time Lapse mode
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Vlogging Comparison

Pentax 645Z Vlogging factors
Sony HX90V Vlogging factors
27
supports face detect focus
high res video (1920 x 1080 resolution)
has microphone support
doesn't offer selfie friendly screen
lack of image stabilization
more heavy than others (1,550g)
75
decently wide (24mm)
selfie friendly screen
image stabilization (Optical)
includes face detect focusing
video res high (1920 x 1080 pixels)
lighter than competition in class (245g)
slow max aperture (f3.5)
no mic support
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Pentax 645Z vs Sony HX90V Specifications

Detailed spec comparison table for Pentax 645Z and Sony HX90V
 Pentax 645ZSony Cyber-shot DSC-HX90V
General Information
Make Pentax Sony
Model type Pentax 645Z Sony Cyber-shot DSC-HX90V
Category Pro DSLR Small Sensor Superzoom
Announced 2014-04-15 2015-04-14
Physical type Large SLR Compact
Sensor Information
Processor Chip PRIME III Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Medium format 1/2.3"
Sensor dimensions 44 x 33mm 6.17 x 4.55mm
Sensor surface area 1,452.0mm² 28.1mm²
Sensor resolution 51 megapixels 18 megapixels
Anti alias filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Full resolution 8256 x 6192 4896 x 3672
Max native ISO 204800 12800
Lowest native ISO 100 80
RAW photos
Autofocusing
Manual focusing
Touch to focus
Autofocus continuous
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 27 -
Lens
Lens mount type Pentax 645AF2 fixed lens
Lens zoom range - 24-720mm (30.0x)
Highest aperture - f/3.5-6.4
Macro focusing distance - 5cm
Total lenses 6 -
Crop factor 0.8 5.8
Screen
Type of display Tilting Tilting
Display diagonal 3.2" 3"
Display resolution 1,037 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 638 thousand dots
Viewfinder coverage 98% 100%
Viewfinder magnification 0.85x 0.5x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/4000 seconds 1/2000 seconds
Continuous shooting rate 3.0fps 10.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash distance no built-in flash 5.40 m (with 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 Auto, flash on, slow sync, flash off, rear sync
External flash
Auto exposure bracketing
White balance bracketing
Maximum flash synchronize 1/125 seconds -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) 1920 x 1080 (60p, 60i, 30p, 24p), 1280 x 720 (30p)
Max video resolution 1920x1080 1920x1080
Video file format MPEG-4, H.264 AVCHD, XAVC S
Mic 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 BuiltIn
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1550 grams (3.42 lbs) 245 grams (0.54 lbs)
Physical dimensions 156 x 117 x 123mm (6.1" x 4.6" x 4.8") 102 x 58 x 36mm (4.0" x 2.3" x 1.4")
DXO scores
DXO All around 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 photographs 360 photographs
Form of battery Battery Pack Battery Pack
Battery ID D-LI90 NP-BX1
Self timer Yes (2 or 10 secs) Yes
Time lapse shooting
Storage type Dual SD/SDHC/SDXC slots SD/SDHC/SDXC, Memory Stick Duo
Card slots Dual One
Price at launch $5,024 $440