Pentax K-3 vs Canon EOS M3

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Pentax K-3 vs Canon EOS M3

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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 - 12,800

Go in depth with our full Canon EOS M3 Review.
How does it shoot? Canon EOS M3 in the real world.
See real-world photos taken with the EOS M3.
Compare Canon EOS M3 image quality against competitors.
What’s the bottom line? Read our Canon EOS M3 conclusion.

Succeeded by the Pentax K-3 II
Compare K-3 vs K-3 II

Succeeded by the Canon EOS M6
Compare EOS M3 vs EOS M6

Compare PENTAX K-3 II vs CANON EOS M6

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Differences

Pentax K-3 advantages over Canon EOS M3

Lens selection
Excellent vs Limited
Better lens selection gives you more options
Larger sensor
APS-C vs APS-C
More sensor area. Bigger is (generally) better.
Eye-level viewfinder
Eye-level vs Rear display only
You'll be able to frame photos even when the sun is out
In-Camera Image Stabilization
Yes vs No
Reduces the effects of camera shake at slower shutter speeds
Fast startup
~0.90 vs 2.4 sec
Faster startup lets you catch the moment
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.
K-3 test data on DxO Mark EOS M3 test data on DxO Mark

13.4 vs 11.8 evs
Retain detail in highlight and shadows
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

560 vs 250 shots
Capture more photos
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
Dual card slots
Yes vs No
Gives you more storage flexibility
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 4.2 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
7.1 fps vs 4.0 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
24 vs 4 shots
Larger buffer for RAW shots (burst mode)
Faster shutter
1/8000 vs 1/4000 sec
Shoot wide open in bright light
Higher extended ISO
51200 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Canon EOS M3 advantages over Pentax K-3

Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
Tiltable Screen
Tiltable vs Fixed
Tilt the screen for shooting flexbility
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
NFC
Yes vs No
Simplifies pairing your camera with supported phones
On-sensor phase detect
Yes vs No
Usually improves live view and video AF performance
Thinner
44 mm vs 77 mm
Thinner
Bigger JPEG buffer
Unlimited vs 75 shots
Take more JPEG shots before waiting (burst mode)

Similarities

Common Strengths

Focus peaking
Both provide
Your camera will highlight what's in focus
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

Tilt-swivel screen
Neither provide
Tilt and swivel the screen for maximum shooting flexibility
In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
Built-in Bluetooth
Neither provide
Always-on wireless connectivity
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 EOS M3 User Reviews

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Buy the Pentax K-3

Body Only

Body Only
Kit with 18-135mm Lens

All K-3 Deals

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Buy the Canon EOS M3

Body Only (Black)

Body Only (Black)
Kit with 18-55mm and 55-200mm lens (Black)
Kit with 18-55mm lens (Black)
Kit with 18-55mm lens (White)

All EOS M3 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

DSLR image quality & resolution in a mirrorless body; Higher-res 24MP APS-C sensor; Much improved AF performance; Better ergonomics with full PASM dial; Built-in Wi-Fi & NFC; Tilting LCD.
No built-in EVF; Limited native lens selection; Slow burst mode; Shallow buffer depth with RAW files; No 60p video frame rate or 4K video option.
Read our Canon EOS M3 Review

The Competition

Compared to Nikon D7100

Pentax K-3

Nikon D7100

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$690
APS-C

Fast startup
Longer stills battery life

Compare Pentax K-3 vs Nikon D7100

Canon EOS M3

Nikon D7100

$700
APS-C

Less expensive
Focus peaking

$690
APS-C

Lens selection
Larger sensor

Compare Canon EOS M3 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 EOS M3

Nikon D5300

$700
APS-C

Focus peaking
Touchscreen

$549
APS-C

Lens selection
Larger sensor

Compare Canon EOS M3 vs Nikon D5300

Compared to Samsung NX3000

Pentax K-3

Samsung NX3000

$699
APS-C

Lens selection
Focus peaking

$950
APS-C

Less expensive
In-camera panoramas

Compare Pentax K-3 vs Samsung NX3000

Canon EOS M3

Samsung NX3000

$700
APS-C

Focus peaking
Touchscreen

$950
APS-C

Larger sensor
Bigger pixels

Compare Canon EOS M3 vs Samsung NX3000

Compared to Nikon D7200

Pentax K-3

Nikon D7200

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$1097
APS-C

Fast startup
Built-in Wi-Fi

Compare Pentax K-3 vs Nikon D7200

Canon EOS M3

Nikon D7200

$700
APS-C

Focus peaking
Less expensive

$1097
APS-C

Lens selection
Larger sensor

Compare Canon EOS M3 vs Nikon D7200

Compared to Fujifilm X-E3

Pentax K-3

Fujifilm X-E3

$699
APS-C

Lens selection
In-Camera Image Stabilization

$699
APS-C

Shoot 4K video
Touchscreen

Compare Pentax K-3 vs Fujifilm X-E3

Canon EOS M3

Fujifilm X-E3

$700
APS-C

Tiltable Screen
NFC

$699
APS-C

Lens selection
Larger sensor

Compare Canon EOS M3 vs Fujifilm X-E3

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