Sony A58 vs Pentax K-3

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Sony A58 vs Pentax K-3

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APS-C 366.6mm²
20.1 megapixels
ISO 100 - 16,000

Go in depth with our full Sony A58 Review.
How does it shoot? Sony A58 in the real world.
See real-world photos taken with the A58.
Compare Sony A58 image quality against competitors.
What’s the bottom line? Read our Sony A58 conclusion.

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 Sony A68
Compare A58 vs A68

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

Compare SONY A68 vs PENTAX K-3 II

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Differences

Sony A58 advantages over Pentax K-3

Less expensive
$600 vs $1150 (MSRP)
Save money for lenses or accessories
In-camera panoramas
Yes vs No
Stitches multiple shots into a panoramic photo
Tiltable Screen
Tiltable vs Fixed
Tilt the screen for shooting flexbility
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

700 vs 560 shots
Capture more photos
Lighter weight
731g vs 1240g
Lighter weight

Pentax K-3 advantages over Sony A58

Lens selection
Excellent vs Good
Better lens selection gives you more options
Fast startup
~0.90 vs 1.9 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 A58 test data on DxO Mark

1,216 vs 753 iso
Take photos in low light with less noise
More telephoto lens reach
203 mm vs 83 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 3
Cross-type AF points improve autofocus performance
Higher-res screen
346k vs 154k pixels
More detail on the screen lets you judge focus and composition
More viewfinder magnification
0.63x vs 0.57x
Get a bigger view of the scene through the eye-level viewfinder
More pixels
24.4 vs 20.1 megapixels
Higher resolution photos
Shoots 60p video
Yes vs No
A faster framerate can give you more editing options
Dual card slots
Yes vs No
Gives you more storage flexibility
More AF points
27 vs 15
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 4.9 fps
Faster JPEG shooting (burst mode)
Bigger JPEG buffer
75 vs 8 shots
Take more JPEG shots before waiting (burst mode)
Faster RAW shooting
7.1 fps vs 4.8 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
24 vs 6 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 16000 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
Eye-level viewfinder
Both provide
You'll be able to frame photos even when the sun is out
In-Camera Image Stabilization
Both provide
Reduces the effects of camera shake at slower shutter speeds
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
Touchscreen
Neither provide
Interact with your camera just like your smartphone
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 A58 User Reviews

Amazon
Adorama
Read K-3 User Reviews

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Buy the Sony A58

Kit with 18-55mm Lens

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Buy the Pentax K-3

Body Only

Body Only
Kit with 18-135mm Lens

All K-3 Deals

Review Excerpt

Improved 20.1-megapixel resolution; Impressive image quality, especially for its price; Fast and decisive autofocus (in most conditions); Very good battery life; Good video quality (Full HD 1080p, though it doesn't support 60p frame rate).
Plastic lens mount; Slower burst mode speeds and shallower buffer than A57; LCD no longer fully articulating; Mediocre kit lens; Electronic instead of an optical viewfinder may be a turnoff for some.
Read our Sony A58 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 Pentax K-5 IIs

Sony A58

Pentax K-5 IIs

$598
APS-C

Less expensive
Focus peaking

$497
APS-C

Lens selection
Fast startup

Compare Sony A58 vs Pentax K-5 IIs

Pentax K-3

Pentax K-5 IIs

$699
APS-C

Focus peaking
More cross-type AF points

$497
APS-C

Bigger pixels
Fast startup

Compare Pentax K-3 vs Pentax K-5 IIs

Compared to Nikon D5200

Sony A58

Nikon D5200

$598
APS-C

Focus peaking
In-Camera Image Stabilization

$590
APS-C

Lens selection
Tilt-swivel screen

Compare Sony A58 vs Nikon D5200

Pentax K-3

Nikon D5200

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$590
APS-C

Tilt-swivel screen
Fast startup

Compare Pentax K-3 vs Nikon D5200

Compared to Nikon D7100

Sony A58

Nikon D7100

$598
APS-C

Focus peaking
In-Camera Image Stabilization

$690
APS-C

Lens selection
Fast startup

Compare Sony A58 vs 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

Compared to Canon T5i

Sony A58

Canon T5i

$598
APS-C

Focus peaking
Larger sensor

$539
APS-C

Lens selection
Tilt-swivel screen

Compare Sony A58 vs Canon T5i

Pentax K-3

Canon T5i

$699
APS-C

Focus peaking
Larger sensor

$539
APS-C

Tilt-swivel screen
Touchscreen

Compare Pentax K-3 vs Canon T5i

Compared to Nikon D5300

Sony A58

Nikon D5300

$598
APS-C

Focus peaking
In-Camera Image Stabilization

$549
APS-C

Tilt-swivel screen
Lens selection

Compare Sony A58 vs 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

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