Sony Alpha ILCE-A1 vs Pentax K-3 III Comparison



Let’s compare the Sony Alpha ILCE-A1 vs Pentax K-3 III.

Our comparison table below covers all the important specifications of each camera. In this side-by-side review, we will be comparing Sony Alpha ILCE-A1 and Pentax K-3 III. While Sony Alpha ILCE-A1 has 35mm sensor, Pentax K-3 III has APS-C sensor and 50.1 has a 50.1 MP and Pentax K-3 III has a 25.7 MP resolution.

  Sony Alpha ILCE-A1 Pentax K-3 III
  Sony Alpha ILCE-A1 Front Pentax K-3 III Front
Sensor and Camera Features
Brand Sony Ricoh
Megapixels 50.1 25.7
Sensor Type CMOS CMOS
Sensor Format 35mm APS-C
SLR Type Mirrorless Dslr
Crop Factor 1.0x 1.5x
AA Filter Fixed Optional
Image Resolution 8640 x 5760 (49.8 MP, 3:2) 6192 x 4128 (25.6 MP, 3:2)
Body Image Stabilization Yes Yes
Native ISO Min 100 - Max 32000 Min 100 - Max 160000
Full ISO Settings AUTO, ISO 100 - 32000, expandable to ISO 50 - 102400 Auto, 100-160000 (1, 1/2 or 1/3 EV steps)
Startup Time
AF System and Shooting
Auto Focus Type Fast Hybrid 4D AF: 759 points (PDAF), 425 points (contrast-detection AF); Wide (759 points (PDAF), 425 points (CDAF))/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot/Tracking (Wide/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot); Touch AF SAFOX 13 TTL phase-matching - 101 point (25 cross type focus points in the center)
Continuous Shooting Speed / Burst Mode AUTO, ISO 100 - 32000, expandable to ISO 50 - 102400 Auto, 100-160000 (1, 1/2 or 1/3 EV steps)
Shutter Speed Range 1/32000 - 30 sec 1/8000 - 30 sec
Bulb Mode Yes Yes
JPEG Buffer Size 165 30
AW Buffer Size 155
Screen/viewfinder
LCD 3.0 3.2
LCD Resolution 1,440,000 dots (360,000 px) 1,620,000 dots (540,000 px)
Touchscreen Yes Yes
Articulating Screen Yes No
Tilt Swivel Screen No No
Selfie Screen No No
Top Deck Display No Yes
Focus Peaking Yes Yes
Viewfinder EVF / LCD Optical / LCD
Viewfinder Type EVF: 0.64" 9.44M-dot QXGA color OLED, 100% coverage, 0.90x magnification, 60/120/240fps refresh rates, -4.0 to +3.0 diopter, 25mm eyepoint from the eyepiece lens SLR type; eye-level pentaprism, ~100% coverage, 1.05x mag., 20.5mm eyepoint, -4.0 to +1.0 diopter
Focus Peaking Yes Yes
Video Features
Video Resolution 7680x4320 (30p/​25p/​24p) 3840x2160 (30p/​24p)
Video File Format XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4) MPEG-4 AVC/H.264 (MOV)
Memory Card Type SD / SDHC / SDXC / CFexpress SD / SDHC / SDXC
Dual Card Slot Yes Yes
SD UHS Support 2x CFexpress Type A+SD UHS-II
Microphone Jack Yes Yes
Headphone Jack Yes Yes
Flash and Internal Connections
Built-in Flash No No
Max Flash Sync Speed 1/400s (1/500s APS-C crop mode) 1/200
Internal connections USB-C (USB 3.2 10Gbps), Type-D Micro HDMI, 1000Base-T Ethernet, 3.5mm Microphone and Headphone Jacks, Sync Terminal USB 3.2 Gen1 (Type-C), Micro B,Micro (Type D) HMDI, External cable switch terminal (2.5mm), X-sync socket, 3.5mm stereo mic input, 3.5mm headphone jack
Connectivity
Built-In Wi-Fi Yes Yes
NFC Yes No
Bluetooth Yes Yes
Built-In GPS No Yes
USB Type USB 2.0 High Speed,USB 3.0 Super Speed,Ethernet,Bluetooth,WiFi USB 3.0 Super Speed,Bluetooth,WiFi
Physical
Battery Life (CIPA) 430 shots 800 shots
Battery Types NP-FZ100 Lithium-ion rechargeable Lithium-ion rechargeable
Weight 26.0 oz (737 g) includes batteries 28.9 oz (820 g) includes batteries
Size 5.1 x 3.8 x 3.2 in. (129 x 97 x 81 mm) 5.3 x 4.1 x 2.9 in. (135 x 104 x 74 mm)
Price
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Release Date 2021-03-01 2021-04-06