Pentax K-3 vs. Canon EOS RP

Camera Comparison, Reviews and Tests

In depth comparison and review of Pentax K-3 and Canon EOS RP. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.

Camera Specifications Comparison

Pentax K-3 vs. Canon EOS RP Comparison Chart
DESIGN AND DIMENSIONS Pentax K-3 Canon EOS RP
Product Type Digital camera - SLR with movie recording Digital camera - 4K - mirrorless system with Live View mode, movie recording
Lens Included Body only Body only
Height 10 cm 8.5 cm
Width 13.15 cm 13.25 cm
Depth 7.75 cm 7 cm
Weight 715 g 440 g
Weight Details - Camera body only: 440 g
Camera with battery and memory card: 485 g
Body Material Magnesium alloy Aluminium, magnesium alloy, fibreglass-reinforced polycarbonate resin
Enclosure Colour Black -
Protection Weatherproof, freezeproof, dust-resistant Dust-resistant, water-resistant
SENSOR Pentax K-3 Canon EOS RP
Sensor Resolution 23.35 Megapixel 26.2 Megapixel
Optical Sensor Type CMOS CMOS
Total Pixels 24,710,000 pixels 27,100,000 pixels
Effective Sensor Resolution 23,350,000 pixels 26,200,000 pixels
Optical Sensor Size APS-C (23.5 x 15.6 mm) Full Frame (35.9 x 24 mm)
Frame Rate (Max Resolution) - 25 fps
Sensor Dust Reduction - Yes
Sensor Features Dust Reduction (image sensor vibration), anti-aliasing simulator function Self Cleaning Sensor Unit
Image Stabiliser Optical (image sensor shift mechanism) -
Built-in Optical Image Stabiliser Yes -
Sensors Dust alert sensor, digital level metre -
PROCESSOR Pentax K-3 Canon EOS RP
Image Processor PRIME III DIGIC 8
LENS Pentax K-3 Canon EOS RP
Lens Mounting Type Pentax K Canon RF
FOCUSING Pentax K-3 Canon EOS RP
Auto Focus TTL phase detection Dual Pixel CMOS AF
Auto Focus Points (Zones) Qty 27 4779
Auto Focus Features - Focus Peaking function
AE/AF Control - Face-priority AF, Subject-tracking AF, Eye detection AF, Zone AF
Face Detection Yes Eye Detect AF, Face Detection AF/AE
VIEWFINDER Pentax K-3 Canon EOS RP
Viewfinder Type Optical - fixed eye-level pentaprism Electronic - OLED
Viewfinder Colour Support - Colour
Viewfinder Diagonal Size - 0.39"
Viewfinder Resolution - 2,360,000 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 0.95x 0.70x
Optical Viewfinder Dioptric Correction Range -2.5 to +1.5 -4 to +1
Viewfinder Information - Shutter speed, exposure compensation, flash charge completion, aperture, white balance, battery status, high-speed sync indicator, highlight tone priority, ISO sensitivity, AF point, flicker detection, metering mode
Field of View Crop Factor - 1.0
Interchangeable Focusing Screens Yes -
Features - Viewfinder brightness control
EXPOSURE & WHITE BALANCE Pentax K-3 Canon EOS RP
ISO (Max) 51200 102400
Native ISO 100-51200 100-40000
Extended ISO (Max) - 51200 (H1), 102400 (H2)
Extended ISO (Min) - 50
Light Sensitivity ISO 100-51200, ISO auto (100-51200) ISO 50, ISO 102400, ISO 51200, ISO 100-40000
Exposure Metering Multi-segment, centre-weighted, spot Evaluative, centre-weighted, spot (2.7%), partial (5.5%)
Exposure Metering Zones - 384
Exposure Modes Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority, E-TTL II program flash
Bracketing Modes - Focus bracketing, Flash Exposure Bracketing, white balance bracketing
Shooting Programs - Landscape, portrait mode, close-up, night portrait, food, panning, sports mode, kids, backlight correction HDR, handheld night scene, group photo
Special Effects Soft, Slim, Pastel, fisheye, natural, bright, Vibrant, Sketch, monochrome, Muted, landscape, portrait, Water Colour, miniature, Cross Process, Retro, Colour Extract, Toy camera, starburst, High contrast, Colour Invert, Bleach Bypass, Posterisation, Radiant, Reversal Film, Shading, Tone Expansion, Bold Monochrome, Unicolour Bold Neutral, Custom Effect, Faithful, monochrome, landscape, portrait, Standard, Fine Detail
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white) Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (white)
Shutter Type Mechanical electronically-controlled Mechanical electronically-controlled
Max Shutter Speed 1/8000 sec 1/4000 sec
Min Shutter Speed 30 sec 30 sec
Exposure Compensation ±5 EV range, in 1/2 or 1/3 EV steps ±3 EV range, in 1/2 or 1/3 EV steps
Auto Exposure Bracketing 2, 3 or 5 steps 3 steps in 1/2 or 1/3 EV steps
White Balance Bracketing - Yes
X-sync Speed 1/180 sec 1/180 sec
Exposure Range EV -3-20 (ISO 100) EV -3-20 (ISO 100)
DISPLAY Pentax K-3 Canon EOS RP
Type 3.2" LCD display 3" LCD display
Touch Screen - Yes
Display Format 1,037,000 pixels 1,040,000 pixels
Display Form Factor Built-in Rotating
Display Features Colour control Display brightness control, display colour control, anti-smudge coating
FLASH Pentax K-3 Canon EOS RP
Camera Flash Pop-up flash -
Guide Number (m / ISO 100) 13 -
Flash Modes Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction -
Red-Eye Reduction Yes -
Features AF illuminator, flash +/- compensation, wireless off-camera control -
VIDEOGRAPHY / CAMCORDER Pentax K-3 Canon EOS RP
Digital Video Format AVI, MJPEG, H.264 H.264
Image Recording Format JPEG, DNG (RAW) + JPEG, DNG (RAW) JPEG, RAW, RAW + JPEG, C-RAW
Max Video Resolution 1920 x 1080 3840 x 2160
Audio Signal Format - Linear PCM, AAC
Microphone Operation Mode Mono Stereo
Microphone Features Sensitivity control -
MEMORY Pentax K-3 Canon EOS RP
Memory Card Slot Dual SD card SD card
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card
Memory Card Included - No
Image Storage RAW 6016 x 4000
JPEG 6016 x 4000
JPEG 4608 x 3072
JPEG 3072 x 2048
JPEG 1920 x 1280
RAW 6240 x 4160
RAW 3888 x 2592
RAW 5536 x 4160
RAW 6240 x 3504
RAW 4160 x 4160
JPEG 6240 x 4160
JPEG 4160 x 2768
JPEG 3120 x 2080
JPEG 2400 x 1600
JPEG 3888 x 2592
JPEG 2400 x 1600
JPEG 5536 x 4160
JPEG 3680 x 2768
JPEG 2768 x 2080
JPEG 2112 x 1600
JPEG 6240 x 3504
JPEG 4160 x 2336
JPEG 3120 x 1752
JPEG 2400 x 1344
JPEG 4160 x 4160
JPEG 2768 x 2768
JPEG 2080 x 2080
JPEG 1600 x 1600
Video Capture H.264 - 1920 x 1080 - 30 fps
H.264 - 1920 x 1080 - 25 fps
H.264 - 1920 x 1080 - 24 fps
H.264 - 1280 x 720 - 60 fps
H.264 - 1280 x 720 - 50 fps
H.264 - 1280 x 720 - 30 fps
H.264 - 1280 x 720 - 25 fps
H.264 - 1280 x 720 - 24 fps
H.264 - 1920 x 1080 - 60 fps
H.264 - 1920 x 1080 - 50 fps
H.264 - 3840 x 2160 p - 25 fps - 120Mbps
H.264 - 3840 x 2160 p - 23.98 fps - 120Mbps
H.264 - 1920 x 1080 p - 59.94 fps - 60Mbps
H.264 - 1920 x 1080 p - 50 fps - 60Mbps
H.264 - 1920 x 1080 p - 29.97 fps - 30Mbps
H.264 - 1920 x 1080 p - 25 fps - 30Mbps
H.264 - 1920 x 1080 p - 29.97 fps - 12Mbps
H.264 - 1920 x 1080 p - 25 fps - 12Mbps
H.264 - 1280 x 720 p - 59.94 fps - 26Mbps
H.264 - 1280 x 720 p - 50 fps - 26Mbps
H.264 - 1280 x 720 p - 29.97 fps - 13Mbps
H.264 - 1280 x 720 p - 25 fps - 13Mbps
BATTERY AND CHARGING Pentax K-3 Canon EOS RP
Battery Type Pentax D-Li90 Lithium Ion Canon LP-E17 Lithium Ion
Details Pentax D-Li90 Li-ion rechargeable battery (included) Canon LP-E17 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 560 shots (50% flash usage)
Photo shooting - 720 shots (flash off)
Playback - 6.2 hours
Photo shooting - 250 shots (at 23 °C (Live View mode))
Photo shooting - 240 shots (at 0 °C (Live View mode))
Photo shooting - 210 shots (at 0 °C (LCD Monitor off))
Photo shooting - 200 shots (at 0 °C (LCD Monitor off))
CONNECTIONS Pentax K-3 Canon EOS RP
Interface HDMI, USB 3.0 HDMI, USB 2.0, IEEE 802.11b/g/n, Bluetooth
Connectivity Features - Remote control via mobile devices, remote live view, Wireless Image Transfer, wireless image printing
Print Standard Exif Print support Direct print, DPOF support, Exif Print support, PictBridge support
Computer Connectivity - Mac, Windows
Flash Terminal Hot shoe Hot shoe
Connector Type USB 2.0
HDMI output
Microphone
Headphones
Remote control
USB 3.1 (USB Type-C)
HDMI output (19 pin mini HDMI Type C)
Audio line-in / microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
Remote control
FEATURES Pentax K-3 Canon EOS RP
Self-Timer Delay 2sec, 12sec 10 sec, 2sec
Continuous Shooting Speed 8.3 frames per second 4 frames per second, 5 frames per second, 2.6 frames per second, 2.3 frames per second (3MP)
HDR Mode Auto HDR mode HDR Movie mode
Additional Features Audio recording, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, GPS ready, interval shooting mode, mirror lock, in-camera RAW processing, peripheral illumination correction, HDR image enhancement technology, Shade Correction, Eye-Fi Card Ready, NR Slow Shutter, High ISO NR, Dynamic Range Compensation, no anti-aliasing filter, Lens Distortion Correction, primary colour filter, Interval Movie Record, Automatic composition correction function, colour moire correction, Lateral Chromatic Aberration Correction, Flucard Ready RGB primary colour filter, auto power save, depth-of-field preview button, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, highlight tone priority, GPS ready, interval shooting mode, highlight point display, Dust Delete Data system, USB charging, Auto Lighting Optimizer, in-camera RAW processing, peripheral illumination correction, HDR image enhancement technology, Scene Intelligent Auto technology, Touch Shutter technology, Time-Lapse recording, Dual Axis Electronic Level, noise reduction over long exposures, high ISO speed noise reduction, silent shooting, GPS via mobile, Dual Pixel CMOS AF technology, distortion correction function, Optical Low Pass Filter (OLFP), diffraction correction, Flicker detection, multiple exposure capture, Digital Lens Optimizer, chromatic aberration correction, anti-flicker, firmware upgradable
OTHERS Pentax K-3 Canon EOS RP
Included Accessories Battery charger, body cap, shoulder strap, USB cable, eyecup, shoe cap, battery grip terminal cover, sync terminal cover Battery charger, body cap, neck strap
Software Drivers & Utilities Canon Digital Photo Professional
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature -10 °C 0 °C
Service & Support - Limited warranty - 2 years
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