Pentax K-3 vs Canon SL2

Cameras
Compare Cameras
Pentax K-3 vs Canon SL2

Leave Feedback

APS-C 366.6mm²
24.4 megapixels
ISO 100 - 51,200

Go in depth with our full Pentax K-3 Review.
How does it shoot? Pentax K-3 in the real world.
See real-world photos taken with the K-3.
Compare Pentax K-3 image quality against competitors.
What’s the bottom line? Read our Pentax K-3 conclusion.

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-3 II
Compare K-3 vs K-3 II

Succeeded by the Canon SL3
Compare SL2 vs SL3

Compare PENTAX K-3 II vs CANON SL3

Buy From

Differences

Pentax K-3 advantages over Canon SL2

Focus peaking
Peaker vs Non-peaker
Your camera will highlight what's in focus
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
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.
K-3 test data on DxO Mark SL2 test data on DxO Mark

1,216 vs 1,041 iso
Take photos in low light with less noise
More telephoto lens reach
203 mm vs 88 mm
Capture objects farther away with the kit lens
Top deck display
Yes vs No
Check settings with a screen on top of the camera
More cross-type AF points
25 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
Dual card slots
Yes vs No
Gives you more storage flexibility
More AF points
27 vs 9
More AF points improve autofocus
Headphone jack
Yes vs No
Monitor audio recording while you shoot video
Optional anti-aliasing filter
Optional vs Fixed
Lets you choose sharper photos or reduced moiré
Faster JPEG shooting
7.1 fps vs 5.0 fps
Faster JPEG shooting (burst mode)
Bigger JPEG buffer
75 vs 22 shots
Take more JPEG shots before waiting (burst mode)
Faster RAW shooting
7.1 fps vs 5.1 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
24 vs 5 shots
Larger buffer for RAW shots (burst mode)
Faster shutter
1/8000 vs 1/4000 sec
Shoot wide open in bright light

Canon SL2 advantages over Pentax K-3

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
Fast startup
~0.60 vs 0.9 sec
Faster startup lets you catch the moment
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
On-sensor phase detect
Yes vs No
Usually improves live view and video AF performance
Newer
7 years vs 11 years old
Newer cameras often support more advanced features
Lighter weight
668g vs 1240g
Lighter weight

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
External Mic Jack
Both provide
Improved sound fidelity when shooting video
HDMI out
Both provide
Use HDMI output to monitor or review video
Hot shoe
Both provide
Off-camera flashes open new possibilities
Bulb shutter
Both provide
Hold the shutter open manually for long exposures

Common Weaknesses

In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
Built-in GPS
Neither provide
Geotag your photos
Slow-motion videos
Neither provide
Shoot slow-motion videos

User reviews

Amazon
Adorama
Read K-3 User Reviews

Amazon
Adorama
Read SL2 User Reviews

Buy From

Your purchases support this site

Buy the Pentax K-3

Body Only

Body Only
Kit with 18-135mm Lens

All K-3 Deals

Your purchases support this site

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

Top-notch image quality; Great ergonomics in a compact body; Unique on-demand low-pass filtering; Broad sensitivity range; Large and bright viewfinder for an APS-C camera; Dual card slots; Optional Wi-Fi remote control
AE Lock button is poorly located; Below-average battery life for a DSLR; Rather dated-looking menu system; Requires a different battery grip accessory than its predecessors; Less third-party support than some rivals
Read our Pentax K-3 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 Nikon D7100

Pentax K-3

Nikon D7100

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$745
APS-C

Fast startup
Longer stills battery life

Compare Pentax K-3 vs Nikon D7100

Canon SL2

Nikon D7100

$549
APS-C

Less expensive
Tilt-swivel screen

$745
APS-C

Larger sensor
Fast startup

Compare Canon SL2 vs Nikon D7100

Compared to Nikon D5300

Pentax K-3

Nikon D5300

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$549
APS-C

Tilt-swivel screen
Fast startup

Compare Pentax K-3 vs Nikon D5300

Canon SL2

Nikon D5300

$549
APS-C

Less expensive
Touchscreen

$549
APS-C

Larger sensor
Higher effective ISO

Compare Canon SL2 vs Nikon D5300

Compared to Nikon D7200

Pentax K-3

Nikon D7200

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$1016
APS-C

Fast startup
Built-in Wi-Fi

Compare Pentax K-3 vs Nikon D7200

Canon SL2

Nikon D7200

$549
APS-C

Less expensive
Tilt-swivel screen

$1016
APS-C

Larger sensor
Fast startup

Compare Canon SL2 vs Nikon D7200

Compared to Nikon D3400

Pentax K-3

Nikon D3400

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$497
APS-C

Fast startup
Built-in Bluetooth

Compare Pentax K-3 vs Nikon D3400

Canon SL2

Nikon D3400

$549
APS-C

Tilt-swivel screen
Touchscreen

$497
APS-C

Larger sensor
Higher effective ISO

Compare Canon SL2 vs Nikon D3400

Compared to Canon SL3

Pentax K-3

Canon SL3

$699
APS-C

Focus peaking
Larger sensor

$632
APS-C

Tilt-swivel screen
Shoot 4K video

Compare Pentax K-3 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?