Sigma fp L vs Pentax K-3 III

Cameras
Compare Cameras
Sigma fp L vs Pentax K-3 III

Leave Feedback

35mm 864.0mm²
61.0 megapixels
ISO 100 - 25,600

Go in depth with our full Sigma fp L Review.
See real-world photos taken with the fp L.

APS-C 361.2mm²
25.7 megapixels
ISO 100 - 1,600,000

Go in depth with our full Pentax K-3 III Review.
See real-world photos taken with the K-3 III.

Buy From

Differences

Sigma fp L advantages over Pentax K-3 III

Larger sensor
35mm vs APS-C
More sensor area. Bigger is (generally) better.
Thinner
45 mm vs 73 mm
Thinner
Lighter weight
427g vs 820g
Lighter weight
More pixels
61.0 vs 25.7 megapixels
Higher resolution photos
Slow-motion videos
Yes vs No
Shoot slow-motion videos

Pentax K-3 III advantages over Sigma fp L

Eye-level viewfinder
Eye-level vs Rear display only
You'll be able to frame photos even when the sun is out
High resolution composite
Yes vs No
Combine multiple shots to form a super hi-res version
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
Built-in Bluetooth
Yes vs No
Always-on wireless connectivity
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

800 vs 240 shots
Capture more photos
Top deck display
Yes vs No
Check settings with a screen on top of the camera
Higher max flash sync
1/200 vs 1/15 sec
Reduce the effect of ambient light in flash shots
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
12.0 fps vs 10.0 fps
Faster JPEG shooting (burst mode)
Bigger JPEG buffer
30 vs 12 shots
Take more JPEG shots before waiting (burst mode)
Higher extended ISO
1600000 vs 102400 ISO
Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

Focus peaking
Both provide
Your camera will highlight what's in focus
In-Camera Image Stabilization
Both provide
Reduces the effects of camera shake at slower shutter speeds
Shoot 4K video
Both provide
Make sure you have a fast computer
Touchscreen
Both provide
Interact with your camera just like your smartphone
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
Tiltable Screen
Neither provide
Tilt the screen for shooting flexbility
NFC
Neither provide
Simplifies pairing your camera with supported phones
Built-in GPS
Neither provide
Geotag your photos
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance
Internal flash
Neither provide
Useful in a pinch for fill flash

User reviews

Amazon
Adorama
Read fp L User Reviews

Amazon
Adorama
Read K-3 III User Reviews

Buy From

Your purchases support this site

Buy the Sigma fp L

Your purchases support this site

Buy the Pentax K-3 III

Body Only

Body Only
Kit with 20-40mm F2.8-4 Lens
Kit with 55-300mm f/4.5-6.3 Lens

All K-3 III Deals

Review Excerpt

We haven’t finished our review of the Sigma fp L, but we have extensive sample photos and a hands-on report.
Read our Sigma fp L Shooter's Report

We haven’t finished our review of the Pentax K-3 III, but we have extensive sample photos and a hands-on report.
See our Pentax K-3 III First Shots

The Competition

Compared to Pentax KP

Sigma fp L

Pentax KP

$2499
35mm

Larger sensor
Shoot 4K video

$999
APS-C

Eye-level viewfinder
Tiltable Screen

Compare Sigma fp L vs Pentax KP

Pentax K-3 III

Pentax KP

$1797
APS-C

Shoot 4K video
Touchscreen

$999
APS-C

Less expensive
Tiltable Screen

Compare Pentax K-3 III vs Pentax KP

Compared to Sigma fp

Sigma fp L

Sigma fp

$2499
35mm

Newer
More pixels

$1699
35mm

Bigger pixels
Higher max flash sync

Compare Sigma fp L vs Sigma fp

Pentax K-3 III

Sigma fp

$1797
APS-C

Eye-level viewfinder
High resolution composite

$1699
35mm

Less expensive
Larger sensor

Compare Pentax K-3 III vs Sigma fp

Compared to Canon 90D

Sigma fp L

Canon 90D

$2499
35mm

Focus peaking
Larger sensor

$1099
APS-C

Tilt-swivel screen
Eye-level viewfinder

Compare Sigma fp L vs Canon 90D

Pentax K-3 III

Canon 90D

$1797
APS-C

Focus peaking
In-Camera Image Stabilization

$1099
APS-C

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Canon 90D

Compared to Leica M10-R

Sigma fp L

Leica M10-R

$2499
35mm

Less expensive
In-Camera Image Stabilization

$8295
35mm

Eye-level viewfinder
Bigger pixels

Compare Sigma fp L vs Leica M10-R

Pentax K-3 III

Leica M10-R

$1797
APS-C

Lens selection
In-Camera Image Stabilization

$8295
35mm

Larger sensor
Bigger pixels

Compare Pentax K-3 III vs Leica M10-R

Compared to Sony A7C

Sigma fp L

Sony A7C

$2499
35mm

Thinner
More dots on screen

$1598
35mm

Tilt-swivel screen
Eye-level viewfinder

Compare Sigma fp L vs Sony A7C

Pentax K-3 III

Sony A7C

$1797
APS-C

Lens selection
High resolution composite

$1598
35mm

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Sony A7C

Compare Other Cameras?