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Olympus XZ-1 vs Pentax 645Z

Portability
88
Imaging
35
Features
51
Overall
41
Olympus XZ-1 front
 
Pentax 645Z front
Portability
49
Imaging
80
Features
74
Overall
77

Olympus XZ-1 vs Pentax 645Z Key Specs

Olympus XZ-1
(Full Review)
  • 10MP - 1/1.63" Sensor
  • 3" Fixed Screen
  • ISO 100 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-112mm (F1.8-2.5) lens
  • 275g - 111 x 65 x 42mm
  • Revealed January 2011
Pentax 645Z
(Full Review)
  • 51MP - Medium format Sensor
  • 3.2" Tilting Screen
  • ISO 100 - 204800
  • No Anti-Alias Filter
  • 1920 x 1080 video
  • Pentax 645AF2 Mount
  • 1550g - 156 x 117 x 123mm
  • Announced April 2014
  • Previous Model is Pentax 645D
Photography Glossary

Olympus XZ-1 vs Pentax 645Z Overview

The following is a in depth overview of the Olympus XZ-1 and Pentax 645Z, former is a Small Sensor Compact while the latter is a Pro DSLR by competitors Olympus and Pentax. There exists a substantial gap among the resolutions of the XZ-1 (10MP) and 645Z (51MP) and the XZ-1 (1/1.63") and 645Z (Medium format) enjoy totally different sensor dimensions.

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The XZ-1 was unveiled 4 years prior to the 645Z which is a fairly big difference as far as camera technology is concerned. The two cameras come with different body type with the Olympus XZ-1 being a Compact camera and the Pentax 645Z being a Large SLR camera.

Before getting through a comprehensive comparison, below is a quick introduction of how the XZ-1 grades versus the 645Z in terms of portability, imaging, features and an overall mark.

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Reasons to pick Olympus XZ-1 over the Pentax 645Z

 XZ-1 645Z 

Reasons to pick Pentax 645Z over the Olympus XZ-1

 645Z XZ-1 
AnnouncedApril 2014January 2011Newer by 39 months
Screen typeTiltingFixed Tilting screen
Screen dimension3.2"3"Bigger screen (+0.2")
Screen resolution1037k614kClearer screen (+423k dot)

Common features in the Olympus XZ-1 and Pentax 645Z

 XZ-1 645Z 
Focus manually More accurate focus
Selfie screen Lacking selfie screen
Touch screen Neither contains Touch screen

Olympus XZ-1 vs Pentax 645Z Physical Comparison

When you are planning to travel with your camera frequently, you will want to think about its weight and volume. The Olympus XZ-1 has got outside measurements of 111mm x 65mm x 42mm (4.4" x 2.6" x 1.7") having a weight of 275 grams (0.61 lbs) whilst the Pentax 645Z has sizing of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs).

Contrast the Olympus XZ-1 and Pentax 645Z in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will change depending on the lens you are employing at that time. Following is the front view physical size comparison of the XZ-1 versus the 645Z.

Olympus XZ-1 vs Pentax 645Z size comparison

Looking at dimensions and weight, the portability grade of the XZ-1 and 645Z is 88 and 49 respectively.

Olympus XZ-1 vs Pentax 645Z top view buttons comparison

Olympus XZ-1 vs Pentax 645Z Sensor Comparison

Quite often, it can be difficult to envision the difference in sensor dimensions only by researching technical specs. The pic underneath will offer you a better sense of the sensor sizing in the XZ-1 and 645Z.

As you have seen, both the cameras have got different megapixel count and different sensor dimensions. The XZ-1 using its smaller sensor will make achieving shallow DOF tougher and the Pentax 645Z will render more detail having an extra 41MP. Higher resolution can also let you crop photographs much more aggressively. The more aged XZ-1 will be behind in sensor technology.

Olympus XZ-1 vs Pentax 645Z sensor size comparison

Olympus XZ-1 vs Pentax 645Z Screen and ViewFinder

Olympus XZ-1 vs Pentax 645Z Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus XZ-1 Portrait photography advice
Pentax 645Z Portrait photography advice
45
you can focus manually
includes face detect autofocus
saves RAW files
low resolution (10 megapixels)
sensor size is small (1/1.63")
88
has manual focus
MP count high (51MP)
big sensor size (Medium format)
provides face detection focusing
exports RAW formats
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Street Comparison

Olympus XZ-1 as a Street photography camera
Pentax 645Z as a Street photography camera
59
built in image stabilization (Sensor-shift)
saves RAW files
screen is fixed
sensor size is small (1/1.63")
more heavy than competition (275 grams)
63
has a tilting screen
big sensor size (Medium format)
exports RAW formats
environment proofing
very good ISO range (204,800)
lack of image stabilization
more heavy than others in class (1,550 grams)
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Sports Comparison

Olympus XZ-1 Sports photography advice
Pentax 645Z Sports photography advice
38
built in image stabilization (Sensor-shift)
includes tracking focus
good battery (320 per charge)
continuous shooting slow (2.0 fps)
low resolution (10 megapixels)
sensor size is small (1/1.63")
does not have phase detect autofocus
71
MP count high (51MP)
big sensor size (Medium format)
provides tracking autofocus
environment proofing
supports phase detect AF
max frames per second low (3.0 frames/s)
lack of image stabilization
terrible battery power (650 CIPA)
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Travel Comparison

Olympus XZ-1 as a Travel photography camera
Pentax 645Z as a Travel photography camera
62
good battery (320 shots)
has built in flash
quite wide (28mm)
very good maximum aperture (f1.8)
doesn't have Timelapse mode
more heavy than competition (275g)
low resolution (10 megapixels)
display isn't selfie friendly
51
environment proofing
MP count high (51MP)
terrible battery power (650 per charge)
more heavy than others in class (1,550g)
screen is not selfie friendly
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Landscape Comparison

Landscape photography with Olympus XZ-1
Landscape photography with Pentax 645Z
54
you can focus manually
quite wide (28mm)
very good maximum aperture (f1.8)
screen size is good (3 inch)
built in image stabilization (Sensor-shift)
saves RAW files
good battery (320 per charge)
cannot change lens (fixed lens mount)
low resolution (10 megapixels)
sensor size is small (1/1.63")
doesn't have Timelapse mode
78
has manual focus
change lenses (Pentax 645AF2 mount)
nice screen size (3.2 inches)
MP count high (51MP)
big sensor size (Medium format)
does not have anti aliasing filter
very good ISO range (204,800)
exports RAW formats
environment proofing
has double storage slots
lack of image stabilization
terrible battery power (650 CIPA)
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Vlogging Comparison

Olympus XZ-1 as a Vlogging camera
Pentax 645Z as a Vlogging camera
31
quite wide (28mm)
very good maximum aperture (f1.8)
built in image stabilization (Sensor-shift)
includes face detect autofocus
display isn't selfie friendly
video quality not great (1280 x 720 resolution)
doesn't have microphone port
more heavy than competition (275g)
27
provides face detection focusing
high video quality (1920 x 1080 pxls)
comes with external microphone port
screen is not selfie friendly
lack of image stabilization
more heavy than others in class (1,550 grams)
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Olympus XZ-1 vs Pentax 645Z Specifications

Detailed spec comparison table for Olympus XZ-1 and Pentax 645Z
 Olympus XZ-1Pentax 645Z
General Information
Company Olympus Pentax
Model type Olympus XZ-1 Pentax 645Z
Class Small Sensor Compact Pro DSLR
Revealed 2011-01-26 2014-04-15
Body design Compact Large SLR
Sensor Information
Powered by TruePic V PRIME III
Sensor type CCD CMOS
Sensor size 1/1.63" Medium format
Sensor measurements 8.07 x 5.56mm 44 x 33mm
Sensor surface area 44.9mm² 1,452.0mm²
Sensor resolution 10 megapixels 51 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 4:3
Full resolution 3664 x 2752 8256 x 6192
Max native ISO 6400 204800
Min native ISO 100 100
RAW pictures
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Autofocus single
Autofocus tracking
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 11 27
Lens
Lens mount type fixed lens Pentax 645AF2
Lens zoom range 28-112mm (4.0x) -
Max aperture f/1.8-2.5 -
Macro focusing distance 1cm -
Number of lenses - 6
Focal length multiplier 4.5 0.8
Screen
Screen type Fixed Type Tilting
Screen size 3" 3.2"
Screen resolution 614k dot 1,037k dot
Selfie friendly
Liveview
Touch functionality
Screen tech OLED -
Viewfinder Information
Viewfinder type Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 98 percent
Viewfinder magnification - 0.85x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/2000s 1/4000s
Continuous shooting speed 2.0 frames per sec 3.0 frames per sec
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Inbuilt flash
Flash distance 8.60 m (ISO 800) no built-in flash
Flash modes Auto, On, Off, Red-Eye, Fill-in 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
Hot shoe
AE bracketing
White balance bracketing
Highest flash sync - 1/125s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1280 x 720 (30 fps), 640 x 480 (30 fps) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p)
Max video resolution 1280x720 1920x1080
Video format Motion JPEG MPEG-4, H.264
Microphone jack
Headphone jack
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.0 (5 GBit/sec)
GPS None Optional
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 275g (0.61 pounds) 1550g (3.42 pounds)
Dimensions 111 x 65 x 42mm (4.4" x 2.6" x 1.7") 156 x 117 x 123mm (6.1" x 4.6" x 4.8")
DXO scores
DXO All around rating 34 101
DXO Color Depth rating 18.8 26.0
DXO Dynamic range rating 10.4 14.7
DXO Low light rating 117 4505
Other
Battery life 320 photographs 650 photographs
Type of battery Battery Pack Battery Pack
Battery ID Li-50B D-LI90
Self timer Yes (2 or 12 sec) Yes (2 or 10 secs)
Time lapse shooting
Type of storage SD/SDHC/SDXC Dual SD/SDHC/SDXC slots
Storage slots One Dual
Cost at launch $567 $5,024