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Olympus FE-4000 vs Pentax 645Z

Portability
95
Imaging
35
Features
17
Overall
27
Olympus FE-4000 front
 
Pentax 645Z front
Portability
49
Imaging
80
Features
74
Overall
77

Olympus FE-4000 vs Pentax 645Z Key Specs

Olympus FE-4000
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 100 - 1600
  • 640 x 480 video
  • 26-105mm (F2.6-5.9) lens
  • 136g - 95 x 57 x 22mm
  • Released July 2009
  • Additionally Known as X-925
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
  • Earlier Model is Pentax 645D
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Olympus FE-4000 vs Pentax 645Z Overview

Lets look a bit more in depth at the Olympus FE-4000 versus Pentax 645Z, former being a Small Sensor Compact while the latter is a Pro DSLR by rivals Olympus and Pentax. There exists a large gap among the sensor resolutions of the FE-4000 (12MP) and 645Z (51MP) and the FE-4000 (1/2.3") and 645Z (Medium format) enjoy different sensor sizing.

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The FE-4000 was manufactured 5 years before the 645Z and that is a fairly serious difference as far as camera technology is concerned. Both of these cameras come with different body type with the Olympus FE-4000 being a Compact camera and the Pentax 645Z being a Large SLR camera.

Before delving through a full comparison, below is a brief synopsis of how the FE-4000 scores vs the 645Z for portability, imaging, features and an overall grade.

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Reasons to pick Olympus FE-4000 over the Pentax 645Z

 FE-4000 645Z 

Reasons to pick Pentax 645Z over the Olympus FE-4000

 645Z FE-4000 
RevealedApril 2014July 2009More recent by 57 months
Manually focus More exact focusing
Screen typeTiltingFixed Tilting screen
Screen dimension3.2"2.7"Bigger screen (+0.5")
Screen resolution1037k230kCrisper screen (+807k dot)

Common features in the Olympus FE-4000 and Pentax 645Z

 FE-4000 645Z 
Selfie screen Lack of selfie screen
Touch screen Neither contains Touch screen

Olympus FE-4000 vs Pentax 645Z Physical Comparison

For anyone who is aiming to lug around your camera regularly, you'll need to take into account its weight and dimensions. The Olympus FE-4000 has got external measurements of 95mm x 57mm x 22mm (3.7" x 2.2" x 0.9") with a weight of 136 grams (0.30 lbs) whilst the Pentax 645Z has dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs).

Take a look at the Olympus FE-4000 versus Pentax 645Z in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary dependant on the lens you are employing at the time. Underneath is the front view sizing comparison of the FE-4000 versus the 645Z.

Olympus FE-4000 vs Pentax 645Z size comparison

Factoring in dimensions and weight, the portability grade of the FE-4000 and 645Z is 95 and 49 respectively.

Olympus FE-4000 vs Pentax 645Z top view buttons comparison

Olympus FE-4000 vs Pentax 645Z Sensor Comparison

Typically, it is difficult to visualize the difference in sensor measurements merely by looking through technical specs. The photograph underneath should offer you a better sense of the sensor sizing in the FE-4000 and 645Z.

As you have seen, both cameras posses different megapixel count and different sensor measurements. The FE-4000 because of its smaller sensor is going to make shooting shallow DOF more challenging and the Pentax 645Z will result in extra detail due to its extra 39MP. Higher resolution will also allow you to crop shots somewhat more aggressively. The older FE-4000 will be behind with regard to sensor innovation.

Olympus FE-4000 vs Pentax 645Z sensor size comparison

Olympus FE-4000 vs Pentax 645Z Screen and ViewFinder

Olympus FE-4000 vs Pentax 645Z Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus FE-4000 Portrait photography info
Pentax 645Z Portrait photography info
21
lack of manual focus
no manual mode
cannot use external flash
low megapixels (12MP)
very small sensor size (1/2.3")
has no RAW format
88
focusing manually
fantastic MP (51MP)
large sensor size (Medium format)
includes face detection focusing
delivers RAW formats
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Street Comparison

Olympus FE-4000 Street photography factors
Pentax 645Z Street photography factors
55
lighter than competition (136 grams)
screen does not articulate
no image stabilization
very small sensor size (1/2.3")
has no RAW format
63
screen tilts
large sensor size (Medium format)
delivers RAW formats
weather sealing
above average high ISO (204,800)
lack of image stabilization
heavier than competition in class (1,550 grams)
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Sports Comparison

Olympus FE-4000 Sports photography advice
Pentax 645Z Sports photography advice
17
no shutter priority mode
no image stabilization
low megapixels (12 megapixels)
very small sensor size (1/2.3")
has no phase detect auto focus
71
fantastic MP (51MP)
large sensor size (Medium format)
includes tracking autofocus
weather sealing
has phase detect AF
low fps (3.0 frames/s)
lack of image stabilization
terrible battery life (650 per charge)
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Travel Comparison

Olympus FE-4000 as a Travel photography camera
Pentax 645Z as a Travel photography camera
62
lighter than competition (136g)
has built in flash
relatively wide (26mm)
lack of Time Lapse recording
low megapixels (12 megapixels)
display isn't selfie friendly
slow maximum aperture (f2.6)
51
weather sealing
fantastic MP (51 megapixels)
terrible battery life (650 shots)
heavier than competition in class (1,550 grams)
does not offer selfie friendly display
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Landscape Comparison

Landscape photography with Olympus FE-4000
Landscape photography with Pentax 645Z
28
relatively wide (26mm)
lack of manual focus
fixed lens (fixed lens mount)
slow maximum aperture (f2.6)
tiny screen (2.7")
no manual mode
no image stabilization
low megapixels (12 megapixels)
very small sensor size (1/2.3")
has no RAW format
lack of Time Lapse recording
78
focusing manually
switch lenses (Pentax 645AF2 mount)
screen is a good size (3.2 inch)
fantastic MP (51 megapixels)
large sensor size (Medium format)
does not have low pass filter
above average high ISO (204,800)
delivers RAW formats
weather sealing
two card slots
lack of image stabilization
terrible battery life (650 shots)
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Vlogging Comparison

Olympus FE-4000 as a Vlogging camera
Pentax 645Z as a Vlogging camera
28
relatively wide (26mm)
lighter than competition (136g)
slow maximum aperture (f2.6)
display isn't selfie friendly
no image stabilization
low video resolution (640 x 480 resolution)
lack of external mic port
27
includes face detection focusing
video res high (1920 x 1080 pxls)
has external mic socket
does not offer selfie friendly display
lack of image stabilization
heavier than competition in class (1,550 grams)
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Olympus FE-4000 vs Pentax 645Z Specifications

Detailed spec comparison table for Olympus FE-4000 and Pentax 645Z
 Olympus FE-4000Pentax 645Z
General Information
Brand Name Olympus Pentax
Model type Olympus FE-4000 Pentax 645Z
Also called as X-925 -
Type Small Sensor Compact Pro DSLR
Released 2009-07-22 2014-04-15
Physical type Compact Large SLR
Sensor Information
Chip TruePic III PRIME III
Sensor type CCD CMOS
Sensor size 1/2.3" Medium format
Sensor dimensions 6.17 x 4.55mm 44 x 33mm
Sensor surface area 28.1mm² 1,452.0mm²
Sensor resolution 12 megapixel 51 megapixel
Anti alias filter
Aspect ratio 4:3 4:3
Peak resolution 3968 x 2976 8256 x 6192
Highest native ISO 1600 204800
Lowest native ISO 100 100
RAW photos
Autofocusing
Focus manually
AF touch
AF continuous
AF single
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points - 27
Lens
Lens mount type fixed lens Pentax 645AF2
Lens zoom range 26-105mm (4.0x) -
Maximal aperture f/2.6-5.9 -
Macro focusing range 3cm -
Amount of lenses - 6
Crop factor 5.8 0.8
Screen
Display type Fixed Type Tilting
Display size 2.7 inch 3.2 inch
Resolution of display 230 thousand dots 1,037 thousand dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type None Optical (pentaprism)
Viewfinder coverage - 98%
Viewfinder magnification - 0.85x
Features
Minimum shutter speed 4 seconds 30 seconds
Fastest shutter speed 1/2000 seconds 1/4000 seconds
Continuous shutter rate - 3.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation - Yes
Change WB
Image stabilization
Inbuilt flash
Flash distance 4.00 m no built-in flash
Flash settings 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
AEB
WB bracketing
Fastest flash synchronize - 1/125 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p)
Highest video resolution 640x480 1920x1080
Video data format Motion JPEG MPEG-4, H.264
Mic 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
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 136 grams (0.30 pounds) 1550 grams (3.42 pounds)
Dimensions 95 x 57 x 22mm (3.7" x 2.2" x 0.9") 156 x 117 x 123mm (6.1" x 4.6" x 4.8")
DXO scores
DXO Overall rating not tested 101
DXO Color Depth rating not tested 26.0
DXO Dynamic range rating not tested 14.7
DXO Low light rating not tested 4505
Other
Battery life - 650 images
Battery type - Battery Pack
Battery ID - D-LI90
Self timer Yes (12 seconds) Yes (2 or 10 secs)
Time lapse feature
Type of storage xD Picture Card, microSD Card, Internal Dual SD/SDHC/SDXC slots
Card slots Single Two
Pricing at release $130 $5,024