Pentax
K-S2
Compact weather-sealed APS-C DSLR with 20MP sensor, AA filter simulator, and built-in Wi-Fi.
$799
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Last updated June 2026
Key specs at a glance
Resolution
20.1 MP
Sensor
APS-C
ISO max
25,600
Burst
15 fps
4K
60 fps
IBIS
6-stop
Weight
678 g
Battery
640 shots
Where to buy the Pentax K-S2
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Sensor size
Pentax K-S2
23.5 × 15.6 mm · APS-C
367 mm² area
Lens ecosystem
Pentax K mount
30
First-party
40
Third-party
70+
Total available
Mount introduced 1975
Body size, to scale
Front view
Width × Height
Credit card
85.6 × 54 mm
Back view
Width × Height — same proportions as the front
Credit card
85.6 × 54 mm
Top view
Width × Depth (front-to-back)
Credit card
85.6 × 54 mm
123 × 91 × 77 mm · 678 g (1.49 lb / 23.92 oz)
Best for
Use-case scores
Scored algorithmically from verified specs. 10 = best in class.
Portrait
Fair- · Eye AF locks focus on subjects reliably
- · In-body stabilization for handheld shooting
Sports & Action
Good- · 15fps burst — fast action ready
- · Pre-Capture records before you press shutter
Video & Hybrid
Good- · 4K recording
- · 4K 60p smooth motion
Landscape
Limited- · Weather sealed for outdoor conditions
- · IBIS enables slower handheld shutter speeds
Travel
Good- · 678g — manageable for travel
- · 640 shots/charge — all-day shooting
Wildlife
Excellent- · Bird AF subject recognition
- · Animal subject recognition
Vlogging
Fair- · 4K 60p for smooth handheld vlogs
- · IBIS reduces handheld shake
Pros
- ✓ Weather sealed
- ✓ Compact DSLR
- ✓ AA filter simulator
- ✓ Wi-Fi
Cons
- – 20MP dated
- – No IBIS
- – DSLR niche
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Full specifications
Verified specs · Pentax K-S2