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Panasonic FX580 vs Pentax K20D

Portability
95
Imaging
35
Features
29
Overall
32
Panasonic Lumix DMC-FX580 front
 
Pentax K20D front
Portability
59
Imaging
55
Features
52
Overall
53

Panasonic FX580 vs Pentax K20D Key Specs

Panasonic FX580
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 80 - 1600 (Boost to 6400)
  • Optical Image Stabilization
  • 1280 x 720 video
  • 25-125mm (F2.8-5.9) lens
  • 167g - 95 x 57 x 22mm
  • Revealed January 2009
  • Other Name is Lumix DMC-FX550
Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 3200 (Raise to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Launched June 2008
  • Previous Model is Pentax K10D
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Panasonic FX580 vs Pentax K20D Overview

The following is a complete comparison of the Panasonic FX580 vs Pentax K20D, one is a Small Sensor Compact and the other is a Advanced DSLR by companies Panasonic and Pentax. The image resolution of the FX580 (12MP) and the K20D (15MP) is very comparable but the FX580 (1/2.3") and K20D (APS-C) posses different sensor measurements.

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The FX580 was unveiled 8 months after the K20D which means that they are of a similar generation. The two cameras feature different body design with the Panasonic FX580 being a Compact camera and the Pentax K20D being a Mid-size SLR camera.

Before diving right into a complete comparison, here is a quick summary of how the FX580 matches up versus the K20D in terms of portability, imaging, features and an overall mark.

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Reasons to pick Panasonic FX580 over the Pentax K20D

 FX580 K20D 
LaunchedJanuary 2009June 2008Newer by 8 months
Display size3"2.7"Larger display (+0.3")

Reasons to pick Pentax K20D over the Panasonic FX580

 K20D FX580 
Manually focus Dial exact focus

Common features in the Panasonic FX580 and Pentax K20D

 FX580 K20D 
Display typeFixed Fixed Fixed display
Display resolution230k230kIdentical display resolution
Selfie screen Missing selfie screen
Touch display Missing Touch display

Panasonic FX580 vs Pentax K20D Physical Comparison

For those who are aiming to travel with your camera often, you have to factor its weight and proportions. The Panasonic FX580 has physical dimensions of 95mm x 57mm x 22mm (3.7" x 2.2" x 0.9") having a weight of 167 grams (0.37 lbs) while the Pentax K20D has measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs).

Look at the Panasonic FX580 vs Pentax K20D in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will change based on the lens you are utilizing during that time. Below is a front view overall size comparison of the FX580 and the K20D.

Panasonic FX580 vs Pentax K20D size comparison

Considering size and weight, the portability score of the FX580 and K20D is 95 and 59 respectively.

Panasonic FX580 vs Pentax K20D top view buttons comparison

Panasonic FX580 vs Pentax K20D Sensor Comparison

Generally, it is very tough to imagine the difference in sensor dimensions simply by seeing specifications. The image below should offer you a stronger sense of the sensor dimensions in the FX580 and K20D.

To sum up, both cameras feature different megapixel count and different sensor dimensions. The FX580 having a smaller sensor is going to make getting bokeh tougher and the Pentax K20D will provide greater detail having an extra 3 Megapixels. Greater resolution will allow you to crop images way more aggressively. The younger FX580 should have an edge with regard to sensor technology.

Panasonic FX580 vs Pentax K20D sensor size comparison

Panasonic FX580 vs Pentax K20D Screen and ViewFinder

Panasonic FX580 vs Pentax K20D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Panasonic FX580
Portrait photography with Pentax K20D
26
features face detect focusing
focusing manually not possible
no manual control
can't use external flash
megapixel count low (12 megapixels)
sensor is tiny (1/2.3")
no RAW files
73
you can focus manually
MP count decent (15 megapixels)
good sensor size (APS-C)
supports RAW formats
Handle those 8K RED files like a boss

Street Comparison

Panasonic FX580 Street photography details
Pentax K20D Street photography details
57
built in image stabilization (Optical)
no articulating screen
sensor is tiny (1/2.3")
no RAW files
65
built in image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW formats
environment sealing
screen does not articulate
Coronavirus is affecting the sensor business

Sports Comparison

Panasonic FX580 Sports photography information
Pentax K20D Sports photography information
27
built in image stabilization (Optical)
painfully slow continuous shooting (2.0 frames per second)
megapixel count low (12MP)
sensor is tiny (1/2.3")
no phase detect AF
69
built in image stabilization (Sensor based)
MP count decent (15 megapixels)
good sensor size (APS-C)
environment sealing
sensor has phase detect AF
slow frames per second (3.0 fps)
400 Megapixel mode coming to Fujifilm GFX 100

Travel Comparison

Panasonic FX580 Travel photography factors
Pentax K20D Travel photography factors
58
built-in flash
decently wide (25mm)
doesn't have Timelapse mode
megapixel count low (12 megapixels)
display is not selfie friendly
sluggish max aperture (f2.8)
64
environment sealing
MP count decent (15MP)
flash built-in
screen is not selfie friendly
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Landscape Comparison

Panasonic FX580 Landscape photography features
Pentax K20D Landscape photography features
37
decently wide (25mm)
pretty good screen size (3")
built in image stabilization (Optical)
focusing manually not possible
lens is fixed (fixed lens mount)
sluggish max aperture (f2.8)
no manual control
megapixel count low (12MP)
sensor is tiny (1/2.3")
no RAW files
doesn't have Timelapse mode
71
you can focus manually
change lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
MP count decent (15 megapixels)
good sensor size (APS-C)
supports RAW formats
environment sealing
tiny screen (2.7")
Last day to get your files as Canon Irisa shuts down

Vlogging Comparison

Panasonic FX580 Vlogging advice
Pentax K20D Vlogging advice
31
decently wide (25mm)
built in image stabilization (Optical)
features face detect focusing
sluggish max aperture (f2.8)
display is not selfie friendly
video quality not great (1280 x 720 resolution)
doesn't have microphone support
9
no video recording
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Panasonic FX580 vs Pentax K20D Specifications

Detailed spec comparison table for Panasonic FX580 and Pentax K20D
 Panasonic Lumix DMC-FX580Pentax K20D
General Information
Manufacturer Panasonic Pentax
Model type Panasonic Lumix DMC-FX580 Pentax K20D
Also called Lumix DMC-FX550 -
Class Small Sensor Compact Advanced DSLR
Revealed 2009-01-27 2008-06-25
Physical type Compact Mid-size SLR
Sensor Information
Sensor type CCD CMOS
Sensor size 1/2.3" APS-C
Sensor measurements 6.08 x 4.56mm 23.4 x 15.6mm
Sensor surface area 27.7mm² 365.0mm²
Sensor resolution 12MP 15MP
Anti alias filter
Aspect ratio 16:9, 4:3 and 3:2 3:2
Highest Possible resolution 4000 x 3000 4672 x 3104
Maximum native ISO 1600 3200
Maximum enhanced ISO 6400 6400
Lowest native ISO 80 100
RAW format
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 11 11
Lens
Lens support fixed lens Pentax KAF2
Lens zoom range 25-125mm (5.0x) -
Max aperture f/2.8-5.9 -
Macro focusing range 5cm -
Amount of lenses - 151
Focal length multiplier 5.9 1.5
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3 inch 2.7 inch
Resolution of screen 230k dots 230k dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder None Optical (pentaprism)
Viewfinder coverage - 95 percent
Viewfinder magnification - 0.64x
Features
Min shutter speed 60s 30s
Max shutter speed 1/2000s 1/4000s
Continuous shutter rate 2.0fps 3.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation - Yes
Custom white balance
Image stabilization
Built-in flash
Flash distance 6.00 m 13.00 m (at ISO 100)
Flash modes Auto, On, Off, Red-Eye reduction, Slow Sync Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
AE bracketing
White balance bracketing
Max flash synchronize - 1/180s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1280 x 720 (30 fps), 848 x 480 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) -
Maximum video resolution 1280x720 None
Video data format Motion JPEG -
Microphone port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 167 grams (0.37 lb) 800 grams (1.76 lb)
Physical dimensions 95 x 57 x 22mm (3.7" x 2.2" x 0.9") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall rating not tested 65
DXO Color Depth rating not tested 22.9
DXO Dynamic range rating not tested 11.1
DXO Low light rating not tested 639
Other
Battery ID - D-LI50
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse shooting
Storage type SD/MMC/SDHC card, Internal SD/MMC/SDHC card
Card slots Single Single
Pricing at release $499 $700