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Fujifilm X100 vs Pentax 645Z

Portability
80
Imaging
53
Features
36
Overall
46
Fujifilm FinePix X100 front
 
Pentax 645Z front
Portability
49
Imaging
81
Features
74
Overall
78

Fujifilm X100 vs Pentax 645Z Key Specs

Fujifilm X100
(Full Review)
  • 12MP - APS-C Sensor
  • 2.8" Fixed Screen
  • ISO 200 - 12800
  • No Anti-Alias Filter
  • 1280 x 720 video
  • 35mm (F2.0) lens
  • 445g - 126 x 75 x 54mm
  • Announced May 2011
  • Later Model is Fujifilm X100S
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
  • Revealed April 2014
  • Replaced the Pentax 645D
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Fujifilm X100 vs Pentax 645Z Overview

In this article, we will be matching up the Fujifilm X100 vs Pentax 645Z, former being a Large Sensor Compact while the latter is a Pro DSLR by competitors FujiFilm and Pentax. There exists a substantial gap among the image resolutions of the Fujifilm X100 (12MP) and 645Z (51MP) and the Fujifilm X100 (APS-C) and 645Z (Medium format) feature different sensor dimensions.

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The Fujifilm X100 was brought out 3 years prior to the 645Z and that is a fairly big difference as far as camera technology is concerned. Each of the cameras offer different body type with the Fujifilm X100 being a Large Sensor Compact camera and the Pentax 645Z being a Large SLR camera.

Before getting straight into a detailed comparison, below is a simple introduction of how the Fujifilm X100 matches up versus the 645Z with regards to portability, imaging, features and an overall grade.

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Reasons to pick Fujifilm X100 over the Pentax 645Z

 Fujifilm X100 645Z 

Reasons to pick Pentax 645Z over the Fujifilm X100

 645Z Fujifilm X100 
RevealedApril 2014May 2011More recent by 35 months
Screen typeTiltingFixed Tilting screen
Screen sizing3.2"2.8"Bigger screen (+0.4")
Screen resolution1037k460kCrisper screen (+577k dot)

Common features in the Fujifilm X100 and Pentax 645Z

 Fujifilm X100 645Z 
Focus manually Very accurate focusing
Selfie screen No selfie screen
Touch friendly screen No Touch friendly screen

Fujifilm X100 vs Pentax 645Z Physical Comparison

If you're looking to lug around your camera frequently, you need to factor its weight and measurements. The Fujifilm X100 enjoys outside measurements of 126mm x 75mm x 54mm (5.0" x 3.0" x 2.1") with a weight of 445 grams (0.98 lbs) and the Pentax 645Z has proportions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs).

Examine the Fujifilm X100 vs Pentax 645Z in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will change based on the lens you are working with at that time. Underneath is the front view measurement comparison of the Fujifilm X100 and the 645Z.

Fujifilm X100 vs Pentax 645Z size comparison

Using dimensions and weight, the portability rating of the Fujifilm X100 and 645Z is 80 and 49 respectively.

Fujifilm X100 vs Pentax 645Z top view buttons comparison

Fujifilm X100 vs Pentax 645Z Sensor Comparison

More often than not, its difficult to picture the contrast in sensor measurements simply by researching a spec sheet. The photograph underneath should offer you a stronger sense of the sensor sizing in the Fujifilm X100 and 645Z.

Clearly, the 2 cameras offer different megapixel count and different sensor measurements. The Fujifilm X100 featuring a smaller sensor is going to make shooting bokeh more difficult and the Pentax 645Z will result in greater detail having its extra 39 Megapixels. Higher resolution will also make it easier to crop photographs a little more aggressively. The older Fujifilm X100 will be disadvantaged when it comes to sensor tech.

Fujifilm X100 vs Pentax 645Z sensor size comparison

Fujifilm X100 vs Pentax 645Z Screen and ViewFinder

Fujifilm X100 vs Pentax 645Z Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Fujifilm X100 Portrait photography details
Pentax 645Z Portrait photography details
61
focusing manually
nice sensor size (APS-C)
supports RAW formats
resolution not great (12MP)
88
has manual focus
sensor resolution is great (51MP)
big sensor size (Medium format)
offers face detection autofocus
supports RAW files
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Street Comparison

Street photography with Fujifilm X100
Street photography with Pentax 645Z
63
nice sensor size (APS-C)
supports RAW formats
screen does not articulate
lack of image stabilization
63
screen tilts
big sensor size (Medium format)
supports RAW files
environment proofing
above average high ISO (204,800)
lack of image stabilization
more heavy than average (1,550g)
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Sports Comparison

Fujifilm X100 as a Sports photography camera
Pentax 645Z as a Sports photography camera
34
nice sensor size (APS-C)
focal length is fixed (35mm)
max frames per second very slow (5.0 frames/s)
lack of image stabilization
resolution not great (12 megapixels)
does not have phase detect AF
71
sensor resolution is great (51 megapixels)
big sensor size (Medium format)
offers tracking autofocus
environment proofing
sensor has phase detect autofocus
max frames per second low (3.0 fps)
lack of image stabilization
low battery pack (650 shots)
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Travel Comparison

Fujifilm X100 Travel photography factors
Pentax 645Z Travel photography factors
58
has built in flash
fast max aperture (f2.0)
missing Timelapse recording
resolution not great (12MP)
does not posses selfie friendly display
51
environment proofing
sensor resolution is great (51MP)
low battery pack (650 shots)
more heavy than average (1,550g)
screen isn't selfie friendly
Photography Glossary

Landscape Comparison

Fujifilm X100 Landscape photography highlights
Pentax 645Z Landscape photography highlights
56
focusing manually
fast max aperture (f2.0)
screen size is good (2.8 inch)
nice sensor size (APS-C)
does not have anti aliasing filter
supports RAW formats
fixed lens (fixed lens mount)
focal length is fixed (35mm)
lack of image stabilization
resolution not great (12 megapixels)
missing Timelapse recording
78
has manual focus
swap lenses (Pentax 645AF2 mount)
decent sized screen (3.2 inch)
sensor resolution is great (51 megapixels)
big sensor size (Medium format)
no low pass filter
above average high ISO (204,800)
supports RAW files
environment proofing
two card slots
lack of image stabilization
low battery pack (650 CIPA)
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Vlogging Comparison

Fujifilm X100 Vlogging factors
Pentax 645Z Vlogging factors
25
fast max aperture (f2.0)
does not posses selfie friendly display
lack of image stabilization
video resolution low (1280 x 720 pixels)
missing microphone socket
27
offers face detection autofocus
video resolution high (1920 x 1080 resolution)
includes external microphone socket
screen isn't selfie friendly
lack of image stabilization
more heavy than average (1,550g)
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Fujifilm X100 vs Pentax 645Z Specifications

Detailed spec comparison table for Fujifilm X100 and Pentax 645Z
 Fujifilm FinePix X100Pentax 645Z
General Information
Brand Name FujiFilm Pentax
Model Fujifilm FinePix X100 Pentax 645Z
Type Large Sensor Compact Pro DSLR
Announced 2011-05-16 2014-04-15
Physical type Large Sensor Compact Large SLR
Sensor Information
Chip EXR PRIME III
Sensor type CMOS CMOS
Sensor size APS-C Medium format
Sensor measurements 23.6 x 15.8mm 44 x 33mm
Sensor area 372.9mm² 1,452.0mm²
Sensor resolution 12 megapixels 51 megapixels
Anti aliasing filter
Aspect ratio 3:2 and 16:9 4:3
Highest Possible resolution 4288 x 2848 8256 x 6192
Maximum native ISO 12800 204800
Minimum native ISO 200 100
RAW images
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 49 27
Lens
Lens mount fixed lens Pentax 645AF2
Lens focal range 35mm (1x) -
Maximal aperture f/2.0 -
Macro focus distance 10cm -
Amount of lenses - 6
Focal length multiplier 1.5 0.8
Screen
Type of screen Fixed Type Tilting
Screen size 2.8 inch 3.2 inch
Resolution of screen 460k dots 1,037k dots
Selfie friendly
Liveview
Touch function
Screen tech TFT color LCD monitor -
Viewfinder Information
Viewfinder Electronic and Optical (tunnel) Optical (pentaprism)
Viewfinder resolution 1,440k dots -
Viewfinder coverage 90 percent 98 percent
Viewfinder magnification 0.5x 0.85x
Features
Min shutter speed 30s 30s
Max shutter speed 1/4000s 1/4000s
Continuous shutter rate 5.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash range 9.00 m no built-in flash
Flash options Auto, On, Off, Red-Eye, Slow Sync 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
Max flash synchronize - 1/125s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1280 x 720 (24 fps) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p)
Maximum video resolution 1280x720 1920x1080
Video format MPEG-4 MPEG-4, H.264
Microphone port
Headphone port
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 sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 445 grams (0.98 pounds) 1550 grams (3.42 pounds)
Dimensions 126 x 75 x 54mm (5.0" x 3.0" x 2.1") 156 x 117 x 123mm (6.1" x 4.6" x 4.8")
DXO scores
DXO Overall score 73 101
DXO Color Depth score 22.9 26.0
DXO Dynamic range score 12.4 14.7
DXO Low light score 1001 4505
Other
Battery life 300 shots 650 shots
Battery type Battery Pack Battery Pack
Battery model NP-95 D-LI90
Self timer Yes (2 or 10 sec) Yes (2 or 10 secs)
Time lapse shooting
Type of storage SD/SDHC/SDXC Dual SD/SDHC/SDXC slots
Card slots 1 2
Launch cost $1,800 $5,024