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Olympus TG-850 iHS vs Pentax 645D

Portability
91 Imaging
40 Features
44 Overall
41
Olympus Stylus Tough TG-850 iHS front
 
Pentax 645D front
Portability
50 Imaging
76 Features
52 Overall
66

Olympus TG-850 iHS vs Pentax 645D Key Specs

Olympus TG-850 iHS
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Tilting Display
  • ISO 125 - 6400
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 21-105mm (F3.5-5.7) lens
  • 218g - 110 x 64 x 28mm
  • Revealed January 2014
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
  • Announced March 2010
  • Renewed by Pentax 645Z
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Olympus TG-850 iHS vs Pentax 645D Overview

On this page, we are evaluating the Olympus TG-850 iHS versus Pentax 645D, former being a Waterproof while the other is a Pro DSLR by companies Olympus and Pentax. There is a considerable difference between the image resolutions of the TG-850 iHS (16MP) and 645D (40MP) and the TG-850 iHS (1/2.3") and 645D (Medium format) offer different sensor dimensions.

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The TG-850 iHS was announced 3 years later than the 645D and that is quite a large difference as far as tech is concerned. Both of these cameras have different body design with the Olympus TG-850 iHS being a Compact camera and the Pentax 645D being a Large SLR camera.

Before we go into a complete comparison, here is a short overview of how the TG-850 iHS matches up vs the 645D when considering portability, imaging, features and an overall grade.

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Reasons to pick Olympus TG-850 iHS over the Pentax 645D

		

		

			
 TG-850 iHS 645D 
AnnouncedJanuary 2014March 2010More recent by 48 months
Display typeTiltingFixed Tilting display
		

	

	
	

		

		
Reasons to pick Pentax 645D over the Olympus TG-850 iHS

		

		

			
 645D TG-850 iHS 
Manually focus  Very accurate focus
Display resolution921k460kSharper display (+461k dot)
		

	

	
	

		

		
Common features in the Olympus TG-850 iHS and Pentax 645D

		

		

			
 TG-850 iHS 645D 
Display dimensions3"3"Equal display sizing
Selfie screen  Absent selfie screen
Touch display  Absent Touch display
		

	

	

	
	
	
	

	

		

		
Olympus TG-850 iHS vs Pentax 645D Physical Comparison

		

		

			
If you are going to lug around your camera frequently, you will have to factor its weight and volume. The Olympus TG-850 iHS enjoys exterior measurements of 110mm x 64mm x 28mm (4.3" x 2.5" x 1.1") having a weight of 218 grams (0.48 lbs) and the Pentax 645D has sizing of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs).
Contrast the Olympus TG-850 iHS versus Pentax 645D in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses
Remember that, the weight of an ILC will differ depending on the lens you are using at the time. Below is a front view measurements comparison of the TG-850 iHS and the 645D.
Olympus TG-850 iHS vs Pentax 645D size comparison
Taking into consideration size and weight, the portability grade of the TG-850 iHS and 645D is 91 and 50 respectively.
Olympus TG-850 iHS vs Pentax 645D top view buttons comparison		

	

	
	

		

		
Olympus TG-850 iHS vs Pentax 645D Sensor Comparison

		

		

			
In many cases, it is very hard to picture the difference between sensor measurements purely by checking specifications. The visual underneath will offer you a greater sense of the sensor measurements in the TG-850 iHS and 645D.
Plainly, the 2 cameras provide different resolutions and different sensor measurements. The TG-850 iHS having a tinier sensor is going to make getting shallower DOF trickier and the Pentax 645D will give you greater detail with its extra 24 Megapixels. Greater resolution will also let you crop photos more aggressively. The younger TG-850 iHS provides a benefit with regard to sensor tech.
	
			Olympus TG-850 iHS vs Pentax 645D sensor size comparison			
		

	

	
	

		

		
Olympus TG-850 iHS vs Pentax 645D Screen and ViewFinder

		

		

					

		Olympus TG-850 iHS vs Pentax 645D Screen and Viewfinder comparison	

	
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Photography Type Scores

		

	

	
Portrait Comparison
Olympus TG-850 iHS Portrait photography highlights
Pentax 645D Portrait photography highlights
35
 megapixel count decent (16 megapixels)
 features face detection focus
 manual focus not available
 no manual exposure
 external flash not possible
 sensor  is very small (1/2.3")
 lack of RAW format
77
 you can focus manually
 high MP (40MP)
 sensor size is large (Medium format)
 saves RAW formats
 does not have liveview
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Street Comparison
Olympus TG-850 iHS Street photography details
Pentax 645D Street photography details
69
 tilting screen
 has image stabilization (Optical)
 weather proof
 sensor  is very small (1/2.3")
 lack of RAW format
58
 sensor size is large (Medium format)
 saves RAW formats
 weather sealing
 screen is fixed
 lack of image stabilization
Photography Glossary
Sports Comparison
 Olympus TG-850 iHS as a Sports photography camera
 Pentax 645D as a Sports photography camera
51
 has image stabilization (Optical)
 megapixel count decent (16 megapixels)
 features tracking autofocus
 weather proof
 better than average battery pack (330 per charge)
 lack of shutter priority mode
 sensor  is very small (1/2.3")
 lack of phase detect auto focus
63
 high MP (40MP)
 sensor size is large (Medium format)
 weather sealing
 has phase detect auto focus
 does not have liveview
 max fps low (1.0 frames per second)
 lack of image stabilization
 bad battery (800 CIPA)
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Travel Comparison
Travel photography with Olympus TG-850 iHS
Travel photography with Pentax 645D
72
 better than average battery pack (330 shots)
 weather proof
 megapixel count decent (16 megapixels)
 flash built-in
 pretty wide (21mm)
 does not posses selfie friendly screen
 somewhat slow maximum aperture (f3.5)
55
 weather sealing
 high MP (40MP)
 bad battery (800 CIPA)
 doesn't contain selfie friendly display
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Landscape Comparison
 Olympus TG-850 iHS as a Landscape photography camera
 Pentax 645D as a Landscape photography camera
50
 pretty wide (21mm)
 nice screen size (3")
 has image stabilization (Optical)
 megapixel count decent (16MP)
 weather proof
 better than average battery pack (330 CIPA)
 manual focus not available
 cannot change lenses (fixed lens mount)
 somewhat slow maximum aperture (f3.5)
 no manual exposure
 sensor  is very small (1/2.3")
 lack of RAW format
72
 you can focus manually
 interchangeable lenses (Pentax 645AF2 mount)
 good sized screen (3")
 high MP (40MP)
 sensor size is large (Medium format)
 doesnt have low pass filter
 saves RAW formats
 weather sealing
 has double storage slots
 does not have liveview
 lack of image stabilization
 bad battery (800 CIPA)
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Vlogging Comparison
Vlogging with Olympus TG-850 iHS
Vlogging with Pentax 645D
33
 pretty wide (21mm)
 has image stabilization (Optical)
 features face detection focus
 video resolution high (1920 x 1080 pixels)
 somewhat slow maximum aperture (f3.5)
 does not posses selfie friendly screen
 doesn't have external mic socket
9
 no video
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Olympus TG-850 iHS vs Pentax 645D Specifications

		

		

					

		
		

			Detailed spec comparison table for Olympus TG-850 iHS and Pentax 645D
 Olympus Stylus Tough TG-850 iHSPentax 645D
General Information
Company Olympus Pentax
Model type Olympus Stylus Tough TG-850 iHS Pentax 645D
Type Waterproof Pro DSLR
Revealed 2014-01-29 2010-03-10
Body design Compact Large SLR
Sensor Information
Processor 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 megapixel 40 megapixel
Anti alias filter    
Aspect ratio - 4:3
Full resolution 4616 x 3464 7264 x 5440
Max native ISO 6400 1600
Min native ISO 125 200
RAW data    
Min boosted ISO - 100
Autofocusing
Focus manually    
Touch focus    
Continuous AF    
Single AF    
Tracking AF    
Selective AF    
AF center weighted    
AF multi area    
AF live view    
Face detect focusing    
Contract detect focusing    
Phase detect focusing    
Total focus points - 11
Cross type focus points - -
Lens
Lens support fixed lens Pentax 645AF2
Lens zoom range 21-105mm (5.0x) -
Largest aperture f/3.5-5.7 -
Available lenses - 6
Crop factor 5.8 0.8
Screen
Range of display Tilting Fixed Type
Display diagonal 3 inch 3 inch
Resolution of display 460k dot 921k dot
Selfie friendly    
Liveview    
Touch friendly    
Display tech TFT LCD TFT Color LCD with wide-viewing angle and with AR coating
Viewfinder Information
Viewfinder None Optical (pentaprism)
Viewfinder coverage - 98 percent
Viewfinder magnification - 0.85x
Features
Slowest shutter speed 1/2 secs 30 secs
Maximum shutter speed 1/2000 secs 1/4000 secs
Continuous shooting speed 7.0fps 1.0fps
Shutter priority    
Aperture priority    
Expose Manually    
Exposure compensation - Yes
Change WB    
Image stabilization    
Built-in flash    
Flash distance - no built-in flash
Flash modes - Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
Hot shoe    
AEB    
White balance bracketing    
Maximum flash sync - 1/125 secs
Exposure
Multisegment    
Average    
Spot    
Partial    
AF area    
Center weighted    
Video features
Video resolutions 1920 x 1080 (60p, 30p), 1280 x 720 (60p), 640 x 480 (30 fps) -
Max video resolution 1920x1080 None
Video data format H.264, Motion JPEG -
Microphone jack    
Headphone jack    
Connectivity
Wireless Yes None
Bluetooth    
NFC    
HDMI    
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal    
Water proofing    
Dust proofing    
Shock proofing    
Crush proofing    
Freeze proofing    
Weight 218g (0.48 pounds) 1480g (3.26 pounds)
Physical dimensions 110 x 64 x 28mm (4.3" x 2.5" x 1.1") 156 x 117 x 119mm (6.1" x 4.6" x 4.7")
DXO scores
DXO All around 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 330 images 800 images
Battery form Battery Pack Battery Pack
Battery ID LI-50B D-LI90
Self timer Yes (2 sec, 12 sec, Custom Self-Timer (1-30 sec start timer, 1-10 pictures, 1-3 sec interval)) Yes (2 or 10 sec)
Time lapse recording    
Type of storage SD, SDHC, SDXC, Internal Memory SD/SDHC
Storage slots Single Dual
Price at launch $250 $4,000