Side by side comparison and review of Pentax K-3 and Nikon D3100 + AF-S VR DX 18-55mm. Compare design, sensors, zoom functions, batteries and other key specifications and features to simplify the choice of your perfect digital camera. Our goal is to make it easier for you to decide on the camera that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Product Type | Digital camera - SLR with movie recording | Digital camera - 1080p - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | AF-S VR DX 18-55mm lens |
| Height | 10 cm | 9.6 cm |
| Width | 13.15 cm | 12.4 cm |
| Depth | 7.75 cm | 7.5 cm |
| Weight | 715 g | 455 g |
| Body Material | Magnesium alloy | - |
| Enclosure Colour | Black | Black | Red |
| Protection | Weatherproof, freezeproof, dust-resistant | - |
| Optical Zoom | - | 3x |
| SENSOR | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Sensor Resolution | 23.35 Megapixel | 14.2 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 24,710,000 pixels | 14,800,000 pixels |
| Effective Sensor Resolution | 23,350,000 pixels | 14,200,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | APS-C (23.1 x 15.4 mm) |
| Sensor Dust Reduction | - | Yes |
| Sensor Features | Dust Reduction (image sensor vibration), anti-aliasing simulator function | Air flow control system, Self Cleaning Sensor Unit |
| Image Stabiliser | Optical (image sensor shift mechanism) | Optical |
| Built-in Optical Image Stabiliser | Yes | - |
| Sensors | Dust alert sensor, digital level metre | - |
| PROCESSOR | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Image Processor | PRIME III | EXPEED 2 |
|---|
| LENS | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Type | - | Zoom lens - 3x zoom - 18 - 55 mm - f/3.5-5.6 G Nikon AF-S DX VR |
|---|---|---|
| Focal Length Equivalent to 35mm Camera | - | 27 - 82.5mm |
| Focus Adjustment | - | Automatic, manual |
| Min Focus Distance | - | 28 cm |
| Max View Angle | - | 76 degree(s) |
| Zoom Adjustment | - | Manual |
| Lens Construction | - | 8 groups / 11 elements |
| Filter Size | - | 52 mm |
| Lens Mounting Type | Pentax K | Nikon F |
| Features | - | Silent Wave Motor (SWM), aspherical lens, VR (Vibration Reduction) |
| FOCUSING | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Auto Focus | TTL phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 11 |
| Face Detection | Yes | Face-priority AF function |
| VIEWFINDER | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | Optical - eye-level penta-dach mirror |
|---|---|---|
| Optical Viewfinder Field Coverage | 100% | 95% |
| Optical Viewfinder Magnification | 0.95x | 0.8x |
| Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -1.7 to +0.5 |
| Field of View Crop Factor | - | 1.5 |
| Interchangeable Focusing Screens | Yes | - |
| EXPOSURE & WHITE BALANCE | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| ISO (Max) | 51200 | 12800 |
|---|---|---|
| Native ISO | 100-51200 | - |
| Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | ISO 6400, ISO auto, ISO 100-3200, ISO 12800 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Centre-weighted, spot, 3D colour matrix II |
| Exposure Metering Zones | - | 420 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, i-TTL program flash |
| Shooting Programs | - | Landscape, portrait mode, close-up, night portrait, Children, sports mode |
| 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, Vivid, monochrome, landscape, portrait |
| 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) | Incandescent, fluorescent, cloudy, sunlight, Flash, shade |
| Shutter Type | 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 | ±5 EV range, in 1/3 EV steps |
| Auto Exposure Bracketing | 2, 3 or 5 steps | - |
| X-sync Speed | 1/180 sec | 1/200sec |
| Exposure Range | EV -3-20 (ISO 100) | EV 0-20 (ISO 100) |
| DISPLAY | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Type | 3.2" LCD display | 3" LCD display |
|---|---|---|
| Display Format | 1,037,000 pixels | 230,000 pixels |
| Display Form Factor | Built-in | Built-in |
| Display Features | Colour control | Display brightness control |
| FLASH | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Camera Flash | Pop-up flash | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | 13 | 12 |
| Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction |
| Red-Eye Reduction | Yes | Yes |
| Features | AF illuminator, flash +/- compensation, wireless off-camera control | AF illuminator, flash +/- compensation, wireless off-camera control |
| VIDEOGRAPHY / CAMCORDER | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Digital Video Format | AVI, MJPEG, H.264 | MOV |
|---|---|---|
| Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, RAW + JPEG, NEF (RAW) |
| Max Video Resolution | 1920 x 1080 | 1920 x 1080 |
| Microphone Operation Mode | Mono | Mono |
| Microphone Features | Sensitivity control | - |
| MEMORY | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| 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 |
| Included Memory Card | - | 8 GB SDHC |
| Image Storage | RAW 6016 x 4000 JPEG 6016 x 4000 JPEG 4608 x 3072 JPEG 3072 x 2048 JPEG 1920 x 1280 |
4608 x 3072 3456 x 2304 2304 x 1536 |
| 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 |
MOV - 1920 x 1080 - 24 fps MOV - 1280 x 720 - 30 fps MOV - 1280 x 720 - 25 fps MOV - 1280 x 720 - 24 fps MOV - 640 x 424 - 24 fps |
| BATTERY AND CHARGING | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Nikon EN-EL14 Lithium Ion |
|---|---|---|
| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Nikon EN-EL14 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 - 550 shots |
| CONNECTIONS | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Interface | HDMI, USB 3.0 | Composite video/audio, HDMI, USB 2.0 |
|---|---|---|
| Print Standard | Exif Print support | Direct print, DPOF support, Exif Print support, PictBridge support |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 HDMI output Microphone Headphones Remote control |
USB 2.0 HDMI output Composite video/audio output |
| FEATURES | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 8.3 frames per second | 3 frames per second |
| HDR Mode | Auto HDR 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 | Date/time stamp, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, in-camera red-eye removal, cropping an image, GPS ready, LCD live view mode, highlight point display, Active D-Lighting technology, face detection, built-in help guide, Scene Recognition System (SRS), in-camera RAW processing, text input to Exif header |
| OTHERS | Pentax K-3 | Nikon D3100 + AF-S VR DX 18-55mm |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable, eyecup, shoe cap, battery grip terminal cover, sync terminal cover | Eyepiece cover, battery charger, dust cap, body cap, lens cap, neck strap, carrying case, tripod, eyecup, shoe cap |
|---|---|---|
| Software | Drivers & Utilities | Nikon ViewNX 2 |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
