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Olympus FE-25 vs Pentax 645D

Portability
98
Imaging
33
Features
11
Overall
24
Olympus FE-25 front
 
Pentax 645D front
Portability
50
Imaging
76
Features
52
Overall
66

Olympus FE-25 vs Pentax 645D Key Specs

Olympus FE-25
(Full Review)
  • 10MP - 1/2.3" Sensor
  • 2.4" Fixed Display
  • ISO 100 - 0
  • No Video
  • ()mm (F) lens
  • n/ag - 93 x 62 x 24mm
  • Launched January 2009
Pentax 645D
(Full Review)
  • 40MP - Medium format Sensor
  • 3" Fixed Screen
  • ISO 200 - 1600
  • No Anti-Alias Filter
  • No Video
  • Pentax 645AF2 Mount
  • 1480g - 156 x 117 x 119mm
  • Introduced March 2010
  • Later Model is Pentax 645Z
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Olympus FE-25 vs Pentax 645D Overview

Lets look a bit more in depth at the Olympus FE-25 vs Pentax 645D, former being a Ultracompact while the latter is a Pro DSLR by competitors Olympus and Pentax. There exists a substantial gap among the image resolutions of the FE-25 (10MP) and 645D (40MP) and the FE-25 (1/2.3") and 645D (Medium format) offer totally different sensor sizes.

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The FE-25 was manufactured 14 months earlier than the 645D which makes them a generation apart from one another. Each of the cameras feature different body design with the Olympus FE-25 being a Ultracompact camera and the Pentax 645D being a Large SLR camera.

Before going right into a detailed comparison, here is a simple view of how the FE-25 scores versus the 645D in the way of portability, imaging, features and an overall grade.

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Reasons to pick Olympus FE-25 over the Pentax 645D

 FE-25 645D 

Reasons to pick Pentax 645D over the Olympus FE-25

 645D FE-25 
IntroducedMarch 2010January 2009More recent by 14 months
Focus manually More accurate focusing
Screen size3"2.4"Bigger screen (+0.6")
Screen resolution921k112kCrisper screen (+809k dot)

Common features in the Olympus FE-25 and Pentax 645D

 FE-25 645D 
Screen typeFixed Fixed Fixed screen
Selfie screen Neither comes with selfie screen
Touch screen Neither comes with Touch screen

Olympus FE-25 vs Pentax 645D Physical Comparison

For those who are planning to lug around your camera regularly, you have to think about its weight and dimensions. The Olympus FE-25 comes with outer measurements of 93mm x 62mm x 24mm (3.7" x 2.4" x 0.9") having a weight of n/a grams (0.00 lbs) and the Pentax 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs).

Examine the Olympus FE-25 vs Pentax 645D in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will vary depending on the lens you have chosen at the time. Underneath is a front view size comparison of the FE-25 against the 645D.

Olympus FE-25 vs Pentax 645D size comparison

Taking into consideration dimensions and weight, the portability rating of the FE-25 and 645D is 98 and 50 respectively.

Olympus FE-25 vs Pentax 645D top view buttons comparison

Olympus FE-25 vs Pentax 645D Sensor Comparison

Normally, it can be difficult to envision the gap in sensor measurements merely by seeing technical specs. The graphic below will give you a far better sense of the sensor measurements in the FE-25 and 645D.

As you have seen, each of these cameras come with different megapixel count and different sensor measurements. The FE-25 because of its smaller sensor will make shooting shallow DOF harder and the Pentax 645D will provide more detail due to its extra 30 Megapixels. Higher resolution will also allow you to crop photographs a good deal more aggressively. The older FE-25 will be disadvantaged with regard to sensor tech.

Olympus FE-25 vs Pentax 645D sensor size comparison

Olympus FE-25 vs Pentax 645D Screen and ViewFinder

Olympus FE-25 vs Pentax 645D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus FE-25
Portrait photography with Pentax 645D
19
focusing manually not possible
lack of manual mode
external flash not possible
megapixel count low (10MP)
sensor is very small (1/2.3")
lack of RAW support
77
manual focus
high resolution (40MP)
sensor size is great (Medium format)
delivers RAW formats
does not have liveview
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Street Comparison

Olympus FE-25 Street photography features
Pentax 645D Street photography features
48
screen does not articulate
lack of image stabilization
sensor is very small (1/2.3")
lack of RAW support
max ISO too low (0)
58
sensor size is great (Medium format)
delivers RAW formats
weather proofing
fixed screen
lack of image stabilization
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Sports Comparison

Olympus FE-25 as a Sports photography camera
Pentax 645D as a Sports photography camera
16
fixed focal length (()mm)
no shutter priority
lack of image stabilization
megapixel count low (10 megapixels)
sensor is very small (1/2.3")
lack of phase detect AF
63
high resolution (40MP)
sensor size is great (Medium format)
weather proofing
supports phase detect AF
does not have liveview
painfully slow continuous shooting (1.0 frames/s)
lack of image stabilization
terrible battery life (800 shots)
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Travel Comparison

Olympus FE-25 Travel photography advice
Pentax 645D Travel photography advice
61
has built in flash
great max aperture (f)
missing Timelapse mode
megapixel count low (10MP)
doesn't have a selfie friendly display
55
weather proofing
high resolution (40 megapixels)
terrible battery life (800 shots)
does not offer selfie friendly display
Photography Glossary

Landscape Comparison

Olympus FE-25 Landscape photography advice
Pentax 645D Landscape photography advice
27
great max aperture (f)
focusing manually not possible
fixed lens (fixed lens mount)
fixed focal length (()mm)
tiny screen (2.4 inch)
lack of manual mode
lack of image stabilization
megapixel count low (10MP)
sensor is very small (1/2.3")
max ISO too low (0)
lack of RAW support
missing Timelapse mode
72
manual focus
interchangeable lenses (Pentax 645AF2 mount)
nice screen size (3 inches)
high resolution (40MP)
sensor size is great (Medium format)
doesnt have anti aliasing filter
delivers RAW formats
weather proofing
two card slots
does not have liveview
lack of image stabilization
terrible battery life (800 per charge)
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Vlogging Comparison

Olympus FE-25 Vlogging info
Pentax 645D Vlogging info
9
no video recording
9
no video shooting
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Olympus FE-25 vs Pentax 645D Specifications

Detailed spec comparison table for Olympus FE-25 and Pentax 645D
 Olympus FE-25Pentax 645D
General Information
Make Olympus Pentax
Model type Olympus FE-25 Pentax 645D
Type Ultracompact Pro DSLR
Launched 2009-01-07 2010-03-10
Physical type Ultracompact Large SLR
Sensor Information
Processor - Prime II
Sensor type CCD CCD
Sensor size 1/2.3" Medium format
Sensor measurements 6.08 x 4.56mm 44 x 33mm
Sensor surface area 27.7mm² 1,452.0mm²
Sensor resolution 10 megapixel 40 megapixel
Anti alias filter
Aspect ratio - 4:3
Highest Possible resolution 3648 x 2768 7264 x 5440
Maximum native ISO - 1600
Lowest native ISO 100 200
RAW data
Lowest enhanced ISO - 100
Autofocusing
Focus manually
Touch to focus
AF continuous
Single AF
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 - 11
Lens
Lens mount type fixed lens Pentax 645AF2
Lens zoom range () -
Available lenses - 6
Crop factor 5.9 0.8
Screen
Display type Fixed Type Fixed Type
Display sizing 2.4 inch 3 inch
Resolution of display 112 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch display
Display tech - TFT Color LCD with wide-viewing angle and with AR coating
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 - 1.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation - Yes
Change WB
Image stabilization
Integrated flash
Flash distance - no built-in flash
Flash options - Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
External flash
AEB
WB bracketing
Fastest flash synchronize - 1/125 seconds
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Maximum video resolution None None
Video format Motion JPEG -
Microphone port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB none USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight - 1480 grams (3.26 lb)
Physical dimensions 93 x 62 x 24mm (3.7" x 2.4" x 0.9") 156 x 117 x 119mm (6.1" x 4.6" x 4.7")
DXO scores
DXO Overall rating not tested 82
DXO Color Depth rating not tested 24.6
DXO Dynamic range rating not tested 12.6
DXO Low light rating not tested 1262
Other
Battery life - 800 shots
Style of battery - Battery Pack
Battery ID - D-LI90
Self timer - Yes (2 or 10 sec)
Time lapse recording
Type of storage - SD/SDHC
Card slots Single Dual
Retail pricing $15 $4,000