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Olympus SH-3 vs Pentax 645D

Portability
88
Imaging
41
Features
51
Overall
45
Olympus Stylus SH-3 front
 
Pentax 645D front
Portability
50
Imaging
76
Features
52
Overall
66

Olympus SH-3 vs Pentax 645D Key Specs

Olympus SH-3
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 125 - 6400
  • Sensor-shift Image Stabilization
  • 3840 x 2160 video
  • 25-600mm (F3.0-6.9) lens
  • 271g - 109 x 63 x 42mm
  • Released February 2016
  • Old Model is Olympus SH-2
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
  • Released March 2010
  • Later Model is Pentax 645Z
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Olympus SH-3 vs Pentax 645D Overview

Here is a comprehensive analysis of the Olympus SH-3 vs Pentax 645D, one being a Small Sensor Superzoom and the other is a Pro DSLR by companies Olympus and Pentax. There is a crucial difference between the sensor resolutions of the SH-3 (16MP) and 645D (40MP) and the SH-3 (1/2.3") and 645D (Medium format) enjoy different sensor size.

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The SH-3 was manufactured 6 years later than the 645D and that is quite a serious gap as far as tech is concerned. Both of these cameras come with different body type with the Olympus SH-3 being a Compact camera and the Pentax 645D being a Large SLR camera.

Before delving straight into a comprehensive comparison, below is a quick summary of how the SH-3 scores vs the 645D when considering portability, imaging, features and an overall rating.

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Reasons to pick Olympus SH-3 over the Pentax 645D

 SH-3 645D 
ReleasedFebruary 2016March 2010Fresher by 73 months
Touch display Easily navigate

Reasons to pick Pentax 645D over the Olympus SH-3

 645D SH-3 
Focus manually Dial exact focusing
Display resolution921k460kSharper display (+461k dot)

Common features in the Olympus SH-3 and Pentax 645D

 SH-3 645D 
Display typeFixed Fixed Fixed display
Display dimension3"3"Identical display size
Selfie screen Missing selfie screen

Olympus SH-3 vs Pentax 645D Physical Comparison

For those who are planning to carry your camera frequently, you'll need to factor in its weight and proportions. The Olympus SH-3 has outer dimensions of 109mm x 63mm x 42mm (4.3" x 2.5" x 1.7") with a weight of 271 grams (0.60 lbs) and the Pentax 645D has measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs).

Check the Olympus SH-3 vs Pentax 645D in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will change based on the lens you are utilizing at that moment. The following is the front view physical size comparison of the SH-3 and the 645D.

Olympus SH-3 vs Pentax 645D size comparison

Factoring in size and weight, the portability rating of the SH-3 and 645D is 88 and 50 respectively.

Olympus SH-3 vs Pentax 645D top view buttons comparison

Olympus SH-3 vs Pentax 645D Sensor Comparison

Often, its difficult to visualize the gap between sensor sizing simply by reading specifications. The photograph underneath will help provide you a better sense of the sensor sizes in the SH-3 and 645D.

To sum up, each of the cameras posses different resolutions and different sensor sizing. The SH-3 due to its tinier sensor is going to make shooting shallow depth of field more challenging and the Pentax 645D will offer you greater detail due to its extra 24 Megapixels. Greater resolution can also make it easier to crop images somewhat more aggressively. The more recent SH-3 provides an advantage with regard to sensor innovation.

Olympus SH-3 vs Pentax 645D sensor size comparison

Olympus SH-3 vs Pentax 645D Screen and ViewFinder

Olympus SH-3 vs Pentax 645D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus SH-3 as a Portrait photography camera
Pentax 645D as a Portrait photography camera
44
decent MP (16 megapixels)
features face detection focus
exports RAW formats
manual focus not available
no external flash support
tiny sensor (1/2.3")
77
has manual focus
megapixel count great (40 megapixels)
big sensor size (Medium format)
saves RAW files
does not have liveview
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Street Comparison

Olympus SH-3 as a Street photography camera
Pentax 645D as a Street photography camera
70
image stabilization (Sensor-shift)
exports RAW formats
provides focus by touch
lighter than competitors in class (271 grams)
screen does not articulate
tiny sensor (1/2.3")
58
big sensor size (Medium format)
saves RAW files
weather sealing
screen is fixed
no image stabilization
Photography Glossary

Sports Comparison

Olympus SH-3 Sports photography details
Pentax 645D Sports photography details
51
amazing zoom range (25-600mm 24.0 x zoom)
image stabilization (Sensor-shift)
decent MP (16MP)
features tracking autofocus
better than average battery power (380 CIPA)
lack of shutter priority mode
tiny sensor (1/2.3")
lack of phase detect auto focus
63
megapixel count great (40 megapixels)
big sensor size (Medium format)
weather sealing
sensor has phase detect auto focus
does not have liveview
low frames per second (1.0 frames per second)
no image stabilization
low battery (800 shots)
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Travel Comparison

Olympus SH-3 Travel photography information
Pentax 645D Travel photography information
74
better than average battery power (380 CIPA)
lighter than competitors in class (271g)
provides focus by touch
decent MP (16 megapixels)
built-in flash
reasonably wide (25mm)
great reach (600mm)
screen is not selfie friendly
slow maximum aperture (f3.0)
55
weather sealing
megapixel count great (40MP)
low battery (800 CIPA)
screen isn't selfie friendly
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Landscape Comparison

Olympus SH-3 Landscape photography information
Pentax 645D Landscape photography information
55
reasonably wide (25mm)
screen size is good (3 inches)
image stabilization (Sensor-shift)
decent MP (16 megapixels)
exports RAW formats
better than average battery power (380 CIPA)
manual focus not available
lens is fixed (fixed lens mount)
slow maximum aperture (f3.0)
tiny sensor (1/2.3")
72
has manual focus
change lenses (Pentax 645AF2 mount)
nice screen size (3 inch)
megapixel count great (40 megapixels)
big sensor size (Medium format)
does not have anti aliasing filter
saves RAW files
weather sealing
two card slots
does not have liveview
no image stabilization
low battery (800 per charge)
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Vlogging Comparison

Vlogging with Olympus SH-3
Vlogging with Pentax 645D
35
reasonably wide (25mm)
screen is touchscreen
image stabilization (Sensor-shift)
features face detection focus
high quality video (3840 x 2160 resolution)
lighter than competitors in class (271 grams)
slow maximum aperture (f3.0)
screen is not selfie friendly
does not have external microphone socket
9
no video
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Olympus SH-3 vs Pentax 645D Specifications

Detailed spec comparison table for Olympus SH-3 and Pentax 645D
 Olympus Stylus SH-3Pentax 645D
General Information
Manufacturer Olympus Pentax
Model Olympus Stylus SH-3 Pentax 645D
Type Small Sensor Superzoom Pro DSLR
Released 2016-02-08 2010-03-10
Physical type Compact Large SLR
Sensor Information
Chip TruePic VII Prime II
Sensor type BSI-CMOS CCD
Sensor size 1/2.3" Medium format
Sensor measurements 6.17 x 4.55mm 44 x 33mm
Sensor area 28.1mm² 1,452.0mm²
Sensor resolution 16 megapixels 40 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 4:3
Highest resolution 4608 x 3456 7264 x 5440
Highest native ISO 6400 1600
Minimum native ISO 125 200
RAW data
Minimum boosted ISO - 100
Autofocusing
Manual focus
AF touch
AF continuous
AF single
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points - 11
Lens
Lens mounting type fixed lens Pentax 645AF2
Lens focal range 25-600mm (24.0x) -
Largest aperture f/3.0-6.9 -
Macro focus distance 3cm -
Amount of lenses - 6
Crop factor 5.8 0.8
Screen
Type of screen Fixed Type Fixed Type
Screen diagonal 3" 3"
Resolution of screen 460 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch display
Screen 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
Slowest shutter speed 30 secs 30 secs
Maximum shutter speed 1/2000 secs 1/4000 secs
Continuous shooting rate 11.5 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash range 8.30 m (at ISO 3200) no built-in flash
Flash modes Auto, redeye reduction, fill-in, off Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
Hot shoe
AEB
WB bracketing
Maximum flash synchronize - 1/125 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 (15 fps), 1920 x 1080 (60p, 30p), 1280 x 720 (30p), 640 x 480 (30 fps) -
Highest video resolution 3840x2160 None
Video data format H.264 -
Microphone port
Headphone port
Connectivity
Wireless Built-In 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 271 grams (0.60 lbs) 1480 grams (3.26 lbs)
Dimensions 109 x 63 x 42mm (4.3" x 2.5" x 1.7") 156 x 117 x 119mm (6.1" x 4.6" x 4.7")
DXO scores
DXO All around score not tested 82
DXO Color Depth score not tested 24.6
DXO Dynamic range score not tested 12.6
DXO Low light score not tested 1262
Other
Battery life 380 photographs 800 photographs
Type of battery Battery Pack Battery Pack
Battery model LI-92B D-LI90
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD, SDHC, SDXC, Internal Memory SD/SDHC
Card slots Single Two
Price at launch $579 $4,000