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Fujifilm S3 Pro vs Pentax 645D

Portability
54
Imaging
44
Features
43
Overall
43
Fujifilm FinePix S3 Pro front
 
Pentax 645D front
Portability
50
Imaging
76
Features
52
Overall
66

Fujifilm S3 Pro vs Pentax 645D Key Specs

Fujifilm S3 Pro
(Full Review)
  • 6MP - APS-C Sensor
  • 2" Fixed Screen
  • ISO 100 - 1600
  • No Video
  • Nikon F Mount
  • 930g - 148 x 135 x 80mm
  • Released March 2005
  • Succeeded the Fujifilm S2 Pro
  • Replacement is Fujifilm S5 Pro
Pentax 645D
(Full Review)
  • 40MP - Medium format Sensor
  • 3" Fixed Display
  • ISO 200 - 1600
  • No Anti-Alias Filter
  • No Video
  • Pentax 645AF2 Mount
  • 1480g - 156 x 117 x 119mm
  • Revealed March 2010
  • New Model is Pentax 645Z
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Fujifilm S3 Pro vs Pentax 645D Overview

Let's take a deeper look at the Fujifilm S3 Pro and Pentax 645D, both Pro DSLR cameras by companies FujiFilm and Pentax. There is a significant difference among the resolutions of the Fujifilm S3 Pro (6MP) and 645D (40MP) and the Fujifilm S3 Pro (APS-C) and 645D (Medium format) feature different sensor sizing.

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The Fujifilm S3 Pro was manufactured 6 years before the 645D and that is a fairly sizable gap as far as camera tech is concerned. Each of these cameras come with the identical body type (Large SLR).

Before diving straight into a step-by-step comparison, below is a short overview of how the Fujifilm S3 Pro grades against the 645D with regards to portability, imaging, features and an overall grade.

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Reasons to pick Fujifilm S3 Pro over the Pentax 645D

 Fujifilm S3 Pro 645D 

Reasons to pick Pentax 645D over the Fujifilm S3 Pro

 645D Fujifilm S3 Pro 
RevealedMarch 2010March 2005More recent by 60 months
Display dimension3"2"Larger display (+1")
Display resolution921k235kCrisper display (+686k dot)

Common features in the Fujifilm S3 Pro and Pentax 645D

 Fujifilm S3 Pro 645D 
Manually focus More exact focusing
Display typeFixed Fixed Fixed display
Selfie screen Lack of selfie screen
Touch display Lack of Touch display

Fujifilm S3 Pro vs Pentax 645D Physical Comparison

When you are going to lug around your camera, you'll have to take into account its weight and measurements. The Fujifilm S3 Pro enjoys outside measurements of 148mm x 135mm x 80mm (5.8" x 5.3" x 3.1") along with a weight of 930 grams (2.05 lbs) whilst the Pentax 645D has proportions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs).

Look at the Fujifilm S3 Pro and Pentax 645D in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will vary depending on the lens you are working with at that time. Below is the front view dimension comparison of the Fujifilm S3 Pro and the 645D.

Fujifilm S3 Pro vs Pentax 645D size comparison

Looking at size and weight, the portability score of the Fujifilm S3 Pro and 645D is 54 and 50 respectively.

Fujifilm S3 Pro vs Pentax 645D top view buttons comparison

Fujifilm S3 Pro vs Pentax 645D Sensor Comparison

Often, it's hard to imagine the contrast in sensor measurements just by viewing technical specs. The visual underneath might provide you a far better sense of the sensor sizing in the Fujifilm S3 Pro and 645D.

As you have seen, the 2 cameras posses different megapixels and different sensor measurements. The Fujifilm S3 Pro because of its smaller sensor is going to make getting shallower DOF more difficult and the Pentax 645D will provide you with extra detail due to its extra 34 Megapixels. Greater resolution will allow you to crop pics somewhat more aggressively. The older Fujifilm S3 Pro will be behind when it comes to sensor innovation.

Fujifilm S3 Pro vs Pentax 645D sensor size comparison

Fujifilm S3 Pro vs Pentax 645D Screen and ViewFinder

Fujifilm S3 Pro vs Pentax 645D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Fujifilm S3 Pro Portrait photography features
Pentax 645D Portrait photography features
50
focusing manually
nice sensor size (APS-C)
exports RAW files
no liveview feature
low megapixels (6 megapixels)
77
has manual focus
fantastic megapixels (40MP)
sensor size is big (Medium format)
supports RAW files
does not have liveview
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Street Comparison

Fujifilm S3 Pro Street photography highlights
Pentax 645D Street photography highlights
56
nice sensor size (APS-C)
exports RAW files
environment sealing
lighter than competition in class (930 grams)
no articulating screen
lack of image stabilization
58
sensor size is big (Medium format)
supports RAW files
weather proofing
screen does not articulate
lack of image stabilization
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Sports Comparison

Fujifilm S3 Pro as a Sports photography camera
Pentax 645D as a Sports photography camera
47
nice sensor size (APS-C)
environment sealing
sensor has phase detect AF
no liveview feature
lack of image stabilization
low megapixels (6 megapixels)
63
fantastic megapixels (40 megapixels)
sensor size is big (Medium format)
weather proofing
supports phase detect AF
does not have liveview
max frames per second low (1.0 fps)
lack of image stabilization
bad battery pack (800 shots)
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Travel Comparison

Fujifilm S3 Pro Travel photography factors
Pentax 645D Travel photography factors
50
lighter than competition in class (930g)
environment sealing
flash built-in
no Timelapse function
low megapixels (6MP)
doesn't have selfie friendly screen
55
weather proofing
fantastic megapixels (40 megapixels)
bad battery pack (800 CIPA)
does not offer selfie friendly screen
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Landscape Comparison

Landscape photography with Fujifilm S3 Pro
Landscape photography with Pentax 645D
48
focusing manually
change lenses (Nikon F mount)
nice sensor size (APS-C)
exports RAW files
environment sealing
screen is somewhat small (2")
no liveview feature
lack of image stabilization
low megapixels (6MP)
no Timelapse function
72
has manual focus
change lenses (Pentax 645AF2 mount)
nice screen size (3")
fantastic megapixels (40 megapixels)
sensor size is big (Medium format)
no anti-alias filter
supports RAW files
weather proofing
2 card slots
does not have liveview
lack of image stabilization
bad battery pack (800 per charge)
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Vlogging Comparison

Vlogging with Fujifilm S3 Pro
Vlogging with Pentax 645D
9
lack of video recording
9
can't record video
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Fujifilm S3 Pro vs Pentax 645D Specifications

Detailed spec comparison table for Fujifilm S3 Pro and Pentax 645D
 Fujifilm FinePix S3 ProPentax 645D
General Information
Brand FujiFilm Pentax
Model Fujifilm FinePix S3 Pro Pentax 645D
Category Pro DSLR Pro DSLR
Released 2005-03-16 2010-03-10
Physical type Large SLR Large SLR
Sensor Information
Chip - Prime II
Sensor type CCD CCD
Sensor size APS-C Medium format
Sensor measurements 23 x 15.5mm 44 x 33mm
Sensor area 356.5mm² 1,452.0mm²
Sensor resolution 6MP 40MP
Anti aliasing filter
Aspect ratio 3:2 4:3
Highest Possible resolution 4256 x 2848 7264 x 5440
Maximum native ISO 1600 1600
Min native ISO 100 200
RAW support
Min enhanced ISO - 100
Autofocusing
Manual focus
Touch to focus
Continuous AF
AF single
Tracking AF
Selective AF
Center weighted AF
AF multi area
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points - 11
Lens
Lens mount Nikon F Pentax 645AF2
Amount of lenses 309 6
Crop factor 1.6 0.8
Screen
Screen type Fixed Type Fixed Type
Screen sizing 2 inch 3 inch
Resolution of screen 235 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch friendly
Screen tech - TFT Color LCD with wide-viewing angle and with AR coating
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 94% 98%
Viewfinder magnification - 0.85x
Features
Min shutter speed 30s 30s
Max shutter speed 1/4000s 1/4000s
Continuous shutter rate - 1.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Inbuilt flash
Flash range 15.00 m no built-in flash
Flash settings Auto, On, Off, Red-eye reduction, Slow Sync Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
External flash
AE bracketing
White balance bracketing
Max flash synchronize 1/180s 1/125s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Maximum video resolution None None
Microphone support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 930g (2.05 lbs) 1480g (3.26 lbs)
Dimensions 148 x 135 x 80mm (5.8" x 5.3" x 3.1") 156 x 117 x 119mm (6.1" x 4.6" x 4.7")
DXO scores
DXO Overall score 60 82
DXO Color Depth score 20.9 24.6
DXO Dynamic range score 13.5 12.6
DXO Low light score 346 1262
Other
Battery life - 800 images
Form of battery - Battery Pack
Battery model - D-LI90
Self timer Yes (2, 5, 2 or 100 sec) Yes (2 or 10 sec)
Time lapse shooting
Storage type xD Picture Card, Compact Flash Type I or II SD/SDHC
Card slots Single 2
Launch pricing $0 $4,000