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Pentax 645Z vs Pentax Efina

Portability
49
Imaging
80
Features
74
Overall
77
Pentax 645Z front
 
Pentax Efina front
Portability
97
Imaging
38
Features
26
Overall
33

Pentax 645Z vs Pentax Efina Key Specs

Pentax 645Z
(Full Review)
  • 51MP - Medium format Sensor
  • 3.2" Tilting Screen
  • ISO 100 - 204800
  • No Anti-Alias Filter
  • 1920 x 1080 video
  • Pentax 645AF2 Mount
  • 1550g - 156 x 117 x 123mm
  • Revealed April 2014
  • Older Model is Pentax 645D
Pentax Efina
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.5" Fixed Screen
  • ISO 80 - 1600
  • Digital Image Stabilization
  • 1280 x 720 video
  • 26-130mm (F3.5-6.3) lens
  • 91g - 87 x 54 x 21mm
  • Released June 2013
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Pentax 645Z vs Pentax Efina Overview

Here is a comprehensive comparison of the Pentax 645Z vs Pentax Efina, former being a Pro DSLR while the latter is a Ultracompact and both are manufactured by Pentax. There exists a considerable gap among the sensor resolutions of the 645Z (51MP) and Efina (14MP) and the 645Z (Medium format) and Efina (1/2.3") boast different sensor size.

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The 645Z was introduced 11 months later than the Efina which means that they are both of a similar age. Both the cameras feature different body design with the Pentax 645Z being a Large SLR camera and the Pentax Efina being a Ultracompact camera.

Before going into a in-depth comparison, here is a concise summation of how the 645Z scores against the Efina with regard to portability, imaging, features and an overall rating.

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Reasons to pick Pentax 645Z over the Pentax Efina

 645Z Efina 
ReleasedApril 2014June 2013Fresher by 11 months
Manual focus More precise focus
Screen typeTiltingFixed Tilting screen
Screen size3.2"2.5"Bigger screen (+0.7")
Screen resolution1037k230kClearer screen (+807k dot)

Reasons to pick Pentax Efina over the Pentax 645Z

 Efina 645Z 

Common features in the Pentax 645Z and Pentax Efina

 645Z Efina 
Selfie screen No selfie screen
Touch screen No Touch screen

Pentax 645Z vs Pentax Efina Physical Comparison

For anyone who is going to carry your camera frequently, you need to take into account its weight and dimensions. The Pentax 645Z comes with external dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") along with a weight of 1550 grams (3.42 lbs) whilst the Pentax Efina has dimensions of 87mm x 54mm x 21mm (3.4" x 2.1" x 0.8") with a weight of 91 grams (0.20 lbs).

Analyze the Pentax 645Z vs Pentax Efina in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will change dependant on the lens you are working with at the time. Underneath is a front view dimension comparison of the 645Z and the Efina.

Pentax 645Z vs Pentax Efina size comparison

Factoring in dimensions and weight, the portability grade of the 645Z and Efina is 49 and 97 respectively.

Pentax 645Z vs Pentax Efina top view buttons comparison

Pentax 645Z vs Pentax Efina Sensor Comparison

Typically, it is hard to imagine the gap in sensor sizing simply by researching technical specs. The photograph underneath might give you a more clear sense of the sensor sizes in the 645Z and Efina.

As you have seen, both of those cameras feature different resolutions and different sensor sizing. The 645Z with its bigger sensor is going to make getting shallower depth of field simpler and the Pentax 645Z will provide you with greater detail using its extra 37MP. Higher resolution can also make it easier to crop shots way more aggressively. The fresher 645Z provides an edge when it comes to sensor technology.

Pentax 645Z vs Pentax Efina sensor size comparison

Pentax 645Z vs Pentax Efina Screen and ViewFinder

Pentax 645Z vs Pentax Efina Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax 645Z Portrait photography highlights
Pentax Efina Portrait photography highlights
88
manual focus
megapixel count excellent (51 megapixels)
big sensor size (Medium format)
comes with face detection focus
delivers RAW files
34
decent sensor resolution (14 megapixels)
comes with face detect focus
lack of manual focus
no manual control
no external flash support
sensor size is very small (1/2.3")
doesn't have RAW support
Photography Glossary

Street Comparison

Pentax 645Z as a Street photography camera
Pentax Efina as a Street photography camera
63
has a tilting screen
big sensor size (Medium format)
delivers RAW files
weather proof
very good ISO range (204,800)
does not have image stabilization
heavier than competition in class (1,550 grams)
64
has image stabilization (Digital)
lighter than others (91g)
screen does not articulate
sensor size is very small (1/2.3")
doesn't have RAW support
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Sports Comparison

Pentax 645Z Sports photography highlights
Pentax Efina Sports photography highlights
71
megapixel count excellent (51MP)
big sensor size (Medium format)
comes with tracking autofocus
weather proof
sensor has phase detect auto focus
max frames per second very slow (3.0 frames per second)
does not have image stabilization
not so great battery life (650 per charge)
35
has image stabilization (Digital)
decent sensor resolution (14MP)
low max shutter speed (1/1,400 seconds)
lack of shutter priority mode
sensor size is very small (1/2.3")
doesn't have phase detect auto focus
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Travel Comparison

Travel photography with Pentax 645Z
Travel photography with Pentax Efina
51
weather proof
megapixel count excellent (51 megapixels)
not so great battery life (650 CIPA)
heavier than competition in class (1,550 grams)
screen isn't selfie friendly
69
lighter than others (91g)
decent sensor resolution (14MP)
flash built-in
reasonably wide (26mm)
no Timelapse recording
screen is not selfie friendly
slow maximum aperture (f3.5)
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Landscape Comparison

Pentax 645Z Landscape photography info
Pentax Efina Landscape photography info
78
manual focus
swap lenses (Pentax 645AF2 mount)
nice screen size (3.2")
megapixel count excellent (51 megapixels)
big sensor size (Medium format)
doesnt have anti aliasing filter
very good ISO range (204,800)
delivers RAW files
weather proof
has double storage slots
does not have image stabilization
not so great battery life (650 CIPA)
38
reasonably wide (26mm)
has image stabilization (Digital)
decent sensor resolution (14 megapixels)
lack of manual focus
can't swap lenses (fixed lens mount)
slow maximum aperture (f3.5)
screen is somewhat small (2.5 inch)
no manual control
sensor size is very small (1/2.3")
doesn't have RAW support
no Timelapse recording
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Vlogging Comparison

Pentax 645Z as a Vlogging camera
Pentax Efina as a Vlogging camera
27
comes with face detection focus
high quality video (1920 x 1080 resolution)
includes external mic port
screen isn't selfie friendly
does not have image stabilization
heavier than competition in class (1,550g)
33
reasonably wide (26mm)
has image stabilization (Digital)
comes with face detect focus
lighter than others (91 grams)
slow maximum aperture (f3.5)
screen is not selfie friendly
video res low (1280 x 720 pxls)
no microphone port
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Pentax 645Z vs Pentax Efina Specifications

Detailed spec comparison table for Pentax 645Z and Pentax Efina
 Pentax 645ZPentax Efina
General Information
Manufacturer Pentax Pentax
Model type Pentax 645Z Pentax Efina
Type Pro DSLR Ultracompact
Revealed 2014-04-15 2013-06-03
Body design Large SLR Ultracompact
Sensor Information
Processor PRIME III -
Sensor type CMOS CCD
Sensor size Medium format 1/2.3"
Sensor measurements 44 x 33mm 6.17 x 4.55mm
Sensor area 1,452.0mm² 28.1mm²
Sensor resolution 51 megapixels 14 megapixels
Anti alias filter
Aspect ratio 4:3 4:3, 3:2 and 16:9
Max resolution 8256 x 6192 4288 x 3216
Max native ISO 204800 1600
Minimum native ISO 100 80
RAW format
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 27 -
Cross type focus points - -
Lens
Lens support Pentax 645AF2 fixed lens
Lens zoom range - 26-130mm (5.0x)
Highest aperture - f/3.5-6.3
Macro focusing range - 20cm
Available lenses 6 -
Focal length multiplier 0.8 5.8
Screen
Screen type Tilting Fixed Type
Screen size 3.2" 2.5"
Screen resolution 1,037k dot 230k dot
Selfie friendly
Liveview
Touch friendly
Screen tech - QVGA TFT LCD
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 98 percent -
Viewfinder magnification 0.85x -
Features
Minimum shutter speed 30s 1/8s
Fastest shutter speed 1/4000s 1/1400s
Continuous shutter speed 3.0 frames per second -
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes -
Change WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 4.10 m
Flash options 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 Auto, Auto Red-eye Reduction, Forced On, Forced Off
Hot shoe
AE bracketing
WB bracketing
Fastest flash sync 1/125s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) 1280 x 720, 640 x 480
Max video resolution 1920x1080 1280x720
Video data format MPEG-4, H.264 -
Microphone jack
Headphone jack
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1550 gr (3.42 pounds) 91 gr (0.20 pounds)
Physical dimensions 156 x 117 x 123mm (6.1" x 4.6" x 4.8") 87 x 54 x 21mm (3.4" x 2.1" x 0.8")
DXO scores
DXO Overall rating 101 not tested
DXO Color Depth rating 26.0 not tested
DXO Dynamic range rating 14.7 not tested
DXO Low light rating 4505 not tested
Other
Battery life 650 images 200 images
Type of battery Battery Pack Battery Pack
Battery ID D-LI90 D-LI109
Self timer Yes (2 or 10 secs) Yes
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC slots SC/SDHC, Internal
Storage slots Dual Single
Launch cost $5,024 $10