Pentax K20D vs Canon SL2

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Pentax K20D vs Canon SL2

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APS-C 368.2mm²
14.6 megapixels
ISO 100 - 3200

Go in depth with our full Pentax K20D Review.
See real-world photos taken with the K20D.

APS-C 332.3mm²
24.2 megapixels
ISO 100 - 25,600

Go in depth with our full Canon SL2 Review.
How does it shoot? Canon SL2 in the real world.
See real-world photos taken with the SL2.
Compare Canon SL2 image quality against competitors.
What’s the bottom line? Read our Canon SL2 conclusion.

Succeeded by the Pentax K-7
Compare K20D vs K-7

Succeeded by the Canon SL3
Compare SL2 vs SL3

Compare PENTAX K-7 vs CANON SL3

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Differences

Pentax K20D advantages over Canon SL2

Larger sensor
APS-C vs APS-C
More sensor area. Bigger is (generally) better.
In-Camera Image Stabilization
Yes vs No
Reduces the effects of camera shake at slower shutter speeds
Bigger pixels
~ 5.05 vs 3.72 microns
Better low-light and dynamic range (all else equal)
Fast startup
~0.40 vs 0.6 sec
Faster startup lets you catch the moment
Top deck display
Yes vs No
Check settings with a screen on top of the camera
More cross-type AF points
9 vs 1
Cross-type AF points improve autofocus performance
Pentaprism viewfinder
Pentaprism vs Pentamirror
Much better viewfinder picture fidelity
More viewfinder magnification
0.63x vs 0.54x
Get a bigger view of the scene through the eye-level viewfinder
Bigger JPEG buffer
38 vs 22 shots
Take more JPEG shots before waiting (burst mode)

Canon SL2 advantages over Pentax K20D

Tilt-swivel screen
Tilt-swivel vs none
Tilt and swivel the screen for maximum shooting flexibility
Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
NFC
Yes vs No
Simplifies pairing your camera with supported phones
Built-in Bluetooth
Yes vs No
Always-on wireless connectivity
Higher effective ISO

Higher effective ISO

Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.

Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.

You can learn more at our glossary entry.

Maximum effective ISO test data courtesy of DxO Mark.
SL2 test data on DxO Mark K20D test data on DxO Mark

1,041 vs 639 iso
Take photos in low light with less noise
More dynamic range

More dynamic range

Cameras with more dynamic range allow you to take photos with dramatic differences in highlight and shadow areas while retaining detail in both.

Think of a brilliant sunset on a rocky beach: Bright sunset in the background, with dark rocks in the foreground. High dynamic range means more of the extremes will be faithfully reproduced.

Dynamic range test data courtesy of DxO Mark.
SL2 test data on DxO Mark K20D test data on DxO Mark

13.4 vs 11.1 evs
Retain detail in highlight and shadows
On-sensor phase detect
Yes vs No
Usually improves live view and video AF performance
Longer stills battery life
More info

Longer stills battery life

Cameras with longer battery life can take more photos before exhausting their batteries.

Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

650 vs 530 shots
Capture more photos
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Newer
7 years vs 17 years old
Newer cameras often support more advanced features
HDMI out
HDMI out vs None
Use HDMI output to monitor or review video
Shoots 24p video
Yes vs No
Gives your movies a big-screen feel
More dots on screen
1040k vs 230k dots
Can mean greater resolution or a brighter screen
Shoots 1080p video
Yes vs No
You'll want this if you shoot video
More pixels
24.2 vs 14.6 megapixels
Higher resolution photos
Shoots 60p video
Yes vs No
A faster framerate can give you more editing options
Faster JPEG shooting
5.0 fps vs 2.8 fps
Faster JPEG shooting (burst mode)
Higher extended ISO
51200 vs 6400 ISO
Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

Eye-level viewfinder
Both provide
You'll be able to frame photos even when the sun is out
Internal flash
Both provide
Useful in a pinch for fill flash
Hot shoe
Both provide
Off-camera flashes open new possibilities
Bulb shutter
Both provide
Hold the shutter open manually for long exposures

Common Weaknesses

Focus peaking
Neither provide
Your camera will highlight what's in focus
In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
Built-in GPS
Neither provide
Geotag your photos
Dual card slots
Neither provide
Gives you more storage flexibility
Headphone jack
Neither provide
Monitor audio recording while you shoot video
Slow-motion videos
Neither provide
Shoot slow-motion videos

User reviews

Amazon
Adorama
Read K20D User Reviews

Amazon
Adorama
Read SL2 User Reviews

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Buy the Pentax K20D

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Buy the Canon SL2

Body Only (Black)

Body Only (Black)
Kit with 18-55mm IS STM lens (Black)
Kit with 18-55mm IS STM lens (White)

All SL2 Deals

Review Excerpt

Read our Pentax K20D Full Review

Higher resolution and better image quality than SL1; Much improved dynamic range; Excellent Dual Pixel CMOS AF; Compact body with improved ergonomics; Articulating touchscreen; Full HD movies up to 60p; Better battery life.
Shallow buffer depth with RAW files; Dynamic range and high ISO performance still not as good as leading competitors; No 4K video option; OVF only offers 9 AF points.
Read our Canon SL2 Review

The Competition

Compared to Samsung GX-20

Pentax K20D

Samsung GX-20

$800
APS-C

Less expensive

$1400
APS-C

Higher effective ISO

Compare Pentax K20D vs Samsung GX-20

Canon SL2

Samsung GX-20

$549
APS-C

Tilt-swivel screen
Touchscreen

$1400
APS-C

Larger sensor
In-Camera Image Stabilization

Compare Canon SL2 vs Samsung GX-20

Compared to Sony DSLR-A380

Pentax K20D

Sony DSLR-A380

$800
APS-C

Lens selection
Fast startup

$849
APS-C

Tiltable Screen
HDMI out

Compare Pentax K20D vs Sony DSLR-A380

Canon SL2

Sony DSLR-A380

$549
APS-C

Tilt-swivel screen
Lens selection

$849
APS-C

Larger sensor
In-Camera Image Stabilization

Compare Canon SL2 vs Sony DSLR-A380

Compared to Pentax K-7

Pentax K20D

Pentax K-7

$800
APS-C

Less expensive
Fast startup

$1300
APS-C

Longer stills battery life
HDMI out

Compare Pentax K20D vs Pentax K-7

Canon SL2

Pentax K-7

$549
APS-C

Tilt-swivel screen
Touchscreen

$1300
APS-C

Larger sensor
In-Camera Image Stabilization

Compare Canon SL2 vs Pentax K-7

Compared to Nikon D3500

Pentax K20D

Nikon D3500

$800
APS-C

In-Camera Image Stabilization
Bigger pixels

$623
APS-C

Built-in Bluetooth
Longer stills battery life

Compare Pentax K20D vs Nikon D3500

Canon SL2

Nikon D3500

$549
APS-C

Tilt-swivel screen
Touchscreen

$623
APS-C

Larger sensor
Fast startup

Compare Canon SL2 vs Nikon D3500

Compared to Canon SL3

Pentax K20D

Canon SL3

$800
APS-C

Larger sensor
In-Camera Image Stabilization

$632
APS-C

Tilt-swivel screen
Shoot 4K video

Compare Pentax K20D vs Canon SL3

Canon SL2

Canon SL3

$549
APS-C

Less expensive
NFC

$632
APS-C

Shoot 4K video
Longer stills battery life

Compare Canon SL2 vs Canon SL3

Compare Other Cameras?