Ricoh GR vs Pentax K-3

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Ricoh GR vs Pentax K-3

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APS-C 369.7mm²
16.2 megapixels
28.00mm (35mm eq.)

Go in depth with our full Ricoh GR Review.
See real-world photos taken with the GR.

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.

Succeeded by the Ricoh GR II
Compare GR vs GR II

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

Compare RICOH GR II vs PENTAX K-3 II

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Differences

Ricoh GR advantages over Pentax K-3

Less expensive
$799 vs $1150 (MSRP)
Save money for lenses or accessories
Bigger pixels
~ 4.81 vs 3.91 microns
Better low-light and dynamic range (all else equal)
Integrated ND filter
Yes vs No
Shoot in daylight with a large aperture or slow shutter
Thinner
34 mm vs 77 mm
Thinner
Higher max flash sync
1/4000 vs 1/180 sec
Reduce the effect of ambient light in flash shots
Longer exposure
300 vs 30 sec
Long exposures for night shots
Bigger JPEG buffer
Unlimited vs 75 shots
Take more JPEG shots before waiting (burst mode)

Pentax K-3 advantages over Ricoh GR

Focus peaking
Peaker vs Non-peaker
Your camera will highlight what's in focus
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 1.6 sec
Faster startup lets you catch the moment
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 GR test data on DxO Mark

1,216 vs 972 iso
Take photos in low light with less noise
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 290 shots
Capture more photos
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Less shutter lag
0.14 vs 0.28 sec
Focus and take a photo quickly (wide angle)
More pixels
24.4 vs 16.2 megapixels
Higher resolution photos
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 None
Lets you choose sharper photos or reduced moiré
Faster JPEG shooting
7.1 fps vs 4.0 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
7.1 fps vs 6.1 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

Similarities

Common Strengths

Rear display
Both provide
Review photos on the back of the camera
RAW file ability
Both provide
Gives you more flexibility to develop your photos later
Internal flash
Both provide
Useful in a pinch for fill flash
Manual focus
Both provide
AF is for the weak. Real photographers focus manually.
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
Touchscreen
Neither provide
Interact with your camera just like your smartphone
In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
Tiltable Screen
Neither provide
Tilt the screen for shooting flexbility
Built-in Wi-Fi
Neither provide
Share your photos wirelessly
NFC
Neither provide
Simplifies pairing your camera with supported phones
Built-in Bluetooth
Neither provide
Always-on wireless connectivity
Built-in GPS
Neither provide
Geotag your photos
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance
Slow-motion videos
Neither provide
Shoot slow-motion videos

User reviews

Amazon
Adorama
Read GR User Reviews

Amazon
Adorama
Read K-3 User Reviews

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Buy the Pentax K-3

Body Only

Body Only
Kit with 18-135mm Lens

All K-3 Deals

Review Excerpt

The most compact APS-C camera on the market; Bright, sharp 28mm f/2.8 prime lens with almost no distortion; Excellent image quality; Extremely customizable; Fast autofocus; Strong built-in flash plus hot shoe.
Fixed prime lens is not for everybody; Crowded and small controls; Burst performance is limited; Muted colors and cool white balance; Has issues with moire and false color.
Read our Ricoh GR Review

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

The Competition

Compared to Nikon D7100

Ricoh GR

Nikon D7100

$799
APS-C

Bigger pixels
Integrated ND filter

$745
APS-C

Eye-level viewfinder
Fast startup

Compare Ricoh GR vs 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

Compared to Nikon Coolpix A

Ricoh GR

Nikon Coolpix A

$799
APS-C

Less expensive
Longer stills battery life

$1097
APS-C

Higher effective ISO
Bigger RAW buffer

Compare Ricoh GR vs Nikon Coolpix A

Pentax K-3

Nikon Coolpix A

$699
APS-C

Focus peaking
Eye-level viewfinder

$1097
APS-C

Bigger pixels
Thinner

Compare Pentax K-3 vs Nikon Coolpix A

Compared to Nikon D7200

Ricoh GR

Nikon D7200

$799
APS-C

Bigger pixels
Integrated ND filter

$1016
APS-C

Eye-level viewfinder
Fast startup

Compare Ricoh GR vs 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

Compared to Ricoh GR II

Ricoh GR

Ricoh GR II

$799
APS-C

$538
APS-C

Built-in Wi-Fi
NFC

Compare Ricoh GR vs Ricoh GR II

Pentax K-3

Ricoh GR II

$699
APS-C

Focus peaking
Eye-level viewfinder

$538
APS-C

Bigger pixels
Built-in Wi-Fi

Compare Pentax K-3 vs Ricoh GR II

Compared to Fujifilm X70

Ricoh GR

Fujifilm X70

$799
APS-C

Integrated ND filter
Higher max flash sync

$699
APS-C

Focus peaking
Touchscreen

Compare Ricoh GR vs Fujifilm X70

Pentax K-3

Fujifilm X70

$699
APS-C

Eye-level viewfinder
In-Camera Image Stabilization

$699
APS-C

Bigger pixels
Touchscreen

Compare Pentax K-3 vs Fujifilm X70

Compare Other Cameras?