Canon EOS R3 vs Pentax K-3 III Comparison



Let’s compare the Canon EOS R3 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 Canon EOS R3 and Pentax K-3 III. While Canon EOS R3 has 35mm sensor, Pentax K-3 III has APS-C sensor and 24.1 has a 24.1 MP and Pentax K-3 III has a 25.7 MP resolution.

  Canon EOS R3 Pentax K-3 III
  Canon EOS R3 Front Pentax K-3 III Front
Sensor and Camera Features
Brand Canon Ricoh
Megapixels 24.1 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 6000 x 4000 (24.0 MP, 3:2) 6192 x 4128 (25.6 MP, 3:2)
Body Image Stabilization Yes Yes
Native ISO Min 100 - Max 102400 Min 100 - Max 160000
Full ISO Settings Auto, 100-102400 in 1/3 or 1 EV steps, expandable to 50 (L), 204800 (H1) Auto, 100-160000 (1, 1/2 or 1/3 EV steps)
Startup Time
AF System and Shooting
Auto Focus Type Phase Detection AF: Dual Pixel CMOS AF II; 1053 AF zones; Face+Tracking AF (with face/eye/head/body detection, animal detection, vehicle detection), 1-point AF ([AF frame size] can be set to [Small]), Expand AF Area (Above, below, left and right/Around); Zone AF Large Zone AF (Vertical/Horizontal) SAFOX 13 TTL phase-matching - 101 point (25 cross type focus points in the center)
Continuous Shooting Speed / Burst Mode Auto, 100-102400 in 1/3 or 1 EV steps, expandable to 50 (L), 204800 (H1) Auto, 100-160000 (1, 1/2 or 1/3 EV steps)
Shutter Speed Range 1/8000 - 30 sec 1/8000 - 30 sec
Bulb Mode Yes Yes
JPEG Buffer Size 150 30
AW Buffer Size
Screen/viewfinder
LCD 3.2 3.2
LCD Resolution 4,150,000 dots 1,620,000 dots (540,000 px)
Touchscreen Yes Yes
Articulating Screen Yes No
Tilt Swivel Screen Yes No
Selfie Screen Yes No
Top Deck Display Yes Yes
Focus Peaking Yes Yes
Viewfinder EVF / LCD Optical / LCD
Viewfinder Type EVF; 0.5-inch OLED, 5.76 million dots, 120fps refresh rate, 100% coverage, 0.76x magnification, 23mm eyepoint, -4 to +2 diopter, eye sensor 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 6000x3164 (60p/​50p/​30p/​24p/​23.98p) 3840x2160 (30p/​24p)
Video File Format Video: RAW (CRM); H.265/HEVC; MPEG4 AVC/H.264 Variable (averaged) bit rate; Audio: ALL-I/IPB: Linear PCM/AAC MPEG-4 AVC/H.264 (MOV)
Memory Card Type SD / SDHC / SDXC / CFexpress SD / SDHC / SDXC
Dual Card Slot Yes Yes
SD UHS Support CFexpress
Microphone Jack Yes Yes
Headphone Jack Yes Yes
Flash and Internal Connections
Built-in Flash No No
Max Flash Sync Speed 1/250s 1/200
Internal connections Micro HDMI (Type D), USB-C SuperSpeed USB (USB 3.1 Gen 2), 3.5mm stereo microphone and headphone jacks, remote jack, RJ-45 Ethernet 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 No No
Bluetooth Yes Yes
Built-In GPS No Yes
USB Type USB 3.0 Super Speed,Ethernet,Bluetooth,WiFi USB 3.0 Super Speed,Bluetooth,WiFi
Physical
Battery Life (CIPA) 440 shots 800 shots
Battery Types LP-E4N compatible Lithium-ion rechargeable
Weight 35.8 oz (1,015 g) includes batteries 28.9 oz (820 g) includes batteries
Size 5.9 x 5.6 x 3.4 in. (150 x 143 x 87 mm) 5.3 x 4.1 x 2.9 in. (135 x 104 x 74 mm)
Price
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Release Date 2021-11-01 2021-04-06