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Panasonic GH2 vs Pentax 645Z

Portability
70
Imaging
51
Features
65
Overall
56
Panasonic Lumix DMC-GH2 front
 
Pentax 645Z front
Portability
49
Imaging
80
Features
74
Overall
77

Panasonic GH2 vs Pentax 645Z Key Specs

Panasonic GH2
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 160 - 12800
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 442g - 124 x 90 x 76mm
  • Revealed March 2011
  • Replaced the Panasonic GH1
  • Replacement is Panasonic GH3
Pentax 645Z
(Full Review)
  • 51MP - Medium format Sensor
  • 3.2" Tilting Display
  • ISO 100 - 204800
  • No Anti-Alias Filter
  • 1920 x 1080 video
  • Pentax 645AF2 Mount
  • 1550g - 156 x 117 x 123mm
  • Revealed April 2014
  • Superseded the Pentax 645D
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Panasonic GH2 vs Pentax 645Z Overview

Lets look a little more closely at the Panasonic GH2 versus Pentax 645Z, one being a Advanced Mirrorless and the other is a Pro DSLR by manufacturers Panasonic and Pentax. There exists a crucial gap between the resolutions of the GH2 (16MP) and 645Z (51MP) and the GH2 (Four Thirds) and 645Z (Medium format) possess different sensor sizes.

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The GH2 was revealed 4 years earlier than the 645Z and that is quite a serious gap as far as technology is concerned. Both of these cameras come with different body type with the Panasonic GH2 being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.

Before going through a detailed comparison, below is a short summation of how the GH2 grades vs the 645Z in the way of portability, imaging, features and an overall rating.

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Reasons to pick Panasonic GH2 over the Pentax 645Z

 GH2 645Z 
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Easy selfies
Touch friendly display Easily navigate

Reasons to pick Pentax 645Z over the Panasonic GH2

 645Z GH2 
RevealedApril 2014March 2011Fresher by 37 months
Display dimension3.2"3"Larger display (+0.2")
Display resolution1037k460kCrisper display (+577k dot)

Common features in the Panasonic GH2 and Pentax 645Z

 GH2 645Z 
Manual focus More precise focus

Panasonic GH2 vs Pentax 645Z Physical Comparison

When you are looking to carry your camera regularly, you'll need to factor its weight and proportions. The Panasonic GH2 enjoys outside dimensions of 124mm x 90mm x 76mm (4.9" x 3.5" x 3.0") with a weight of 442 grams (0.97 lbs) while the Pentax 645Z has measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs).

Contrast the Panasonic GH2 versus Pentax 645Z in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will change based on the lens you have attached at that moment. Following is the front view overall size comparison of the GH2 versus the 645Z.

Panasonic GH2 vs Pentax 645Z size comparison

Using dimensions and weight, the portability rating of the GH2 and 645Z is 70 and 49 respectively.

Panasonic GH2 vs Pentax 645Z top view buttons comparison

Panasonic GH2 vs Pentax 645Z Sensor Comparison

More often than not, it is difficult to visualize the difference between sensor sizing merely by reviewing a spec sheet. The photograph here should give you a stronger sense of the sensor dimensions in the GH2 and 645Z.

Clearly, both of the cameras posses different megapixels and different sensor sizing. The GH2 with its tinier sensor is going to make achieving bokeh tougher and the Pentax 645Z will offer greater detail because of its extra 35 Megapixels. Greater resolution will let you crop photos somewhat more aggressively. The older GH2 is going to be behind when it comes to sensor tech.

Panasonic GH2 vs Pentax 645Z sensor size comparison

Panasonic GH2 vs Pentax 645Z Screen and ViewFinder

Panasonic GH2 vs Pentax 645Z Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic GH2 Portrait photography information
Pentax 645Z Portrait photography information
70
focusing manually
good resolution (16MP)
decent sensor size (Four Thirds)
includes face detection focus
supports RAW formats
88
has manual focus
megapixel count great (51MP)
big sensor size (Medium format)
supports face detection focus
saves RAW files
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Street Comparison

Panasonic GH2 Street photography highlights
Pentax 645Z Street photography highlights
68
screen can move to multiple angles
decent sensor size (Four Thirds)
supports RAW formats
no image stabilization
63
screen tilts up and down
big sensor size (Medium format)
saves RAW files
weather proof
great ISO range (204,800)
lack of image stabilization
heavier than competition (1,550g)
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Sports Comparison

Panasonic GH2 Sports photography details
Pentax 645Z Sports photography details
46
good resolution (16MP)
decent sensor size (Four Thirds)
includes tracking autofocus
max fps very slow (3.0 frames/s)
no image stabilization
bad battery pack (330 shots)
doesn't have phase detect auto focus
71
megapixel count great (51 megapixels)
big sensor size (Medium format)
supports tracking autofocus
weather proof
comes with phase detect auto focus
max fps very slow (3.0 fps)
lack of image stabilization
terrible battery (650 CIPA)
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Travel Comparison

Panasonic GH2 Travel photography info
Pentax 645Z Travel photography info
62
good resolution (16MP)
has built in flash
display is selfie friendly
no Time Lapse mode
bad battery pack (330 CIPA)
51
weather proof
megapixel count great (51MP)
terrible battery (650 CIPA)
heavier than competition (1,550g)
display isn't selfie friendly
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Landscape Comparison

Panasonic GH2 Landscape photography details
Pentax 645Z Landscape photography details
60
focusing manually
interchangeable lenses (Micro Four Thirds mount)
screen size is good (3 inches)
good resolution (16MP)
decent sensor size (Four Thirds)
supports RAW formats
no image stabilization
bad battery pack (330 CIPA)
no Time Lapse mode
78
has manual focus
interchangeable lenses (Pentax 645AF2 mount)
nice screen size (3.2")
megapixel count great (51MP)
big sensor size (Medium format)
does not have anti aliasing filter
great ISO range (204,800)
saves RAW files
weather proof
2 card slots
lack of image stabilization
terrible battery (650 per charge)
Photography Glossary

Vlogging Comparison

Panasonic GH2 Vlogging info
Pentax 645Z Vlogging info
71
display is selfie friendly
touchscreen capability
includes face detection focus
video res high (1920 x 1080 pxls)
has external mic support
no image stabilization
27
supports face detection focus
high quality video (1920 x 1080 pixels)
does have external mic support
display isn't selfie friendly
lack of image stabilization
heavier than competition (1,550 grams)
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Panasonic GH2 vs Pentax 645Z Specifications

Detailed spec comparison table for Panasonic GH2 and Pentax 645Z
 Panasonic Lumix DMC-GH2Pentax 645Z
General Information
Brand Name Panasonic Pentax
Model Panasonic Lumix DMC-GH2 Pentax 645Z
Type Advanced Mirrorless Pro DSLR
Revealed 2011-03-23 2014-04-15
Physical type SLR-style mirrorless Large SLR
Sensor Information
Chip Venus Engine FHD PRIME III
Sensor type CMOS CMOS
Sensor size Four Thirds Medium format
Sensor dimensions 17.3 x 13mm 44 x 33mm
Sensor surface area 224.9mm² 1,452.0mm²
Sensor resolution 16 megapixel 51 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 4:3
Highest resolution 4608 x 3456 8256 x 6192
Highest native ISO 12800 204800
Min native ISO 160 100
RAW format
Autofocusing
Focus manually
Touch focus
AF continuous
AF single
Tracking AF
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 23 27
Lens
Lens mounting type Micro Four Thirds Pentax 645AF2
Amount of lenses 107 6
Crop factor 2.1 0.8
Screen
Display type Fully Articulated Tilting
Display diagonal 3" 3.2"
Display resolution 460 thousand dots 1,037 thousand dots
Selfie friendly
Liveview
Touch function
Display technology TFT Color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder Electronic Optical (pentaprism)
Viewfinder coverage 100% 98%
Viewfinder magnification 0.71x 0.85x
Features
Slowest shutter speed 60s 30s
Maximum shutter speed 1/4000s 1/4000s
Continuous shooting rate 3.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash range 15.60 m no built-in flash
Flash settings Auto, On, Off, Red-Eye, Slow Sync 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
External flash
Auto exposure bracketing
WB bracketing
Maximum flash synchronize 1/160s 1/125s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (24, 30, 60fps) 1280 x 720 (60, 30 fps), 848 x 480 (30 fps), 640 x 480 (30fps), 320 x 240 (30fps) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p)
Highest video resolution 1920x1080 1920x1080
Video data format AVCHD, Motion JPEG MPEG-4, H.264
Mic support
Headphone support
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 proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 442 gr (0.97 lb) 1550 gr (3.42 lb)
Dimensions 124 x 90 x 76mm (4.9" x 3.5" x 3.0") 156 x 117 x 123mm (6.1" x 4.6" x 4.8")
DXO scores
DXO All around score 60 101
DXO Color Depth score 21.2 26.0
DXO Dynamic range score 11.3 14.7
DXO Low light score 655 4505
Other
Battery life 330 shots 650 shots
Battery style Battery Pack Battery Pack
Battery model - D-LI90
Self timer Yes (2 or 10 sec) Yes (2 or 10 secs)
Time lapse feature
Type of storage SD/SDHC/SDXC Dual SD/SDHC/SDXC slots
Card slots Single 2
Price at launch $1,000 $5,024