In depth comparison and review of Nikon D7100 + AF-S DX 18-105mm VR and Pentax K-S1. 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.
| DESIGN AND DIMENSIONS | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Product Type | Digital camera - SLR with Live View mode, movie recording | Digital camera - 1080p - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | AF-S DX 18-105mm VR lens | Body only |
| Height | 10.65 cm | 9.3 cm |
| Width | 13.55 cm | 12 cm |
| Depth | 7.6 cm | 7 cm |
| Weight | 675 g | 485 g |
| Body Material | Magnesium alloy | - |
| Enclosure Colour | - | White | Black |
| Protection | Splashproof, dust-resistant | - |
| Optical Zoom | 5.8x | - |
| SENSOR | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Sensor Resolution | 24.1 Megapixel | 20.12 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 24,710,000 pixels | 20,420,000 pixels |
| Effective Sensor Resolution | 24,100,000 pixels | 20,120,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | APS-C (23.5 x 15.6 mm) |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Self Cleaning Sensor Unit | Special Protect (SP) coating |
| Image Stabiliser | Optical | - |
| Sensors | Digital level metre | - |
| PROCESSOR | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Image Processor | EXPEED 3 | PRIME MII |
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| LENS | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Type | Zoom lens - 5.8x zoom - 18 - 105 mm - f/3.5-5.6 G Nikon AF-S DX ED VR | - |
|---|---|---|
| Focus Adjustment | Automatic, manual | - |
| Min Focus Distance | 45 cm | - |
| Max View Angle | 76 degree(s) | - |
| Zoom Adjustment | Manual | - |
| Lens Construction | 11 groups / 15 elements | - |
| Filter Size | 67 mm | - |
| Lens Mounting Type | Nikon F | Pentax KAF2 |
| Features | ED glass, Silent Wave Motor (SWM), aspherical lens, VR (Vibration Reduction) | - |
| FOCUSING | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Auto Focus | TTL contrast and phase detection | TTL phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 51 | 11 |
| AE/AF Control | Dynamic-area AF, 3D-tracking AF, Auto-area AF, Face-priority AF, Subject-tracking AF | Face-priority AF, Subject-tracking AF |
| Face Detection | Face-priority AF function | Yes |
| VIEWFINDER | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Viewfinder Type | Optical - fixed eye-level pentaprism | Optical - fixed eye-level pentaprism |
|---|---|---|
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.94x | 0.95x |
| Optical Viewfinder Dioptric Correction Range | -2 to +1 | -2.5 to +1.5 |
| Viewfinder Frames | Autofocus frame | - |
| Field of View Crop Factor | 1.5 | - |
| EXPOSURE & WHITE BALANCE | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| ISO (Max) | 25600 | 51200 |
|---|---|---|
| Native ISO | - | 100-51200 |
| Light Sensitivity | ISO auto, ISO 12800, ISO 25600, ISO 100-6400 | ISO 100-51200, ISO auto (100-51200) |
| Exposure Metering | Centre-weighted, 3D colour matrix II, colour matrix II, spot (2.5%) | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | - | 77 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, i-TTL program flash | Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority |
| Shooting Programs | Autumn colour, landscape, portrait mode, close-up, party/indoor, beach/snow, night portrait, PET, Children, food, night landscape, dawn/dusk, sports mode, sunset, candle, blossom | Landscape, portrait mode, macro, museum, surf & snow, PET, Blue Sky, food, night scene, sunset, candle, night snapshot, night scene with portrait, kids, Stage, night scene HDR, moving object, forest, backlight silhouette |
| Special Effects | Neutral, Vivid, monochrome, landscape, portrait, miniature, HDR, Silhouette, Colour sketch, Colour outline, Perspective Control, Selective Colour, High Key, Night Vision, Low Key, Image Overlay, Quick retouch | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film, Tone Expansion, Cold vintage, Colour Fade, Bold Monochrome, Unicolour Bold, Clear Tone, Warm Fade, Brilliant Colour, Infrared Filter |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, fluorescent, cloudy, sunlight, Flash, shade, 2500K - 10000K | Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight colour), fluorescent light (daylight white) |
| Shutter Type | - | Mechanical electronically-controlled |
| Max Shutter Speed | 1/8000 sec | 1/6000 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 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 5 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps | - |
| White Balance Bracketing | Yes | Yes |
| X-sync Speed | 1/250sec | 1/180 sec |
| Exposure Range | EV 0-20 (ISO 100) | EV 0-22 (ISO 100) |
| DISPLAY | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Type | 3.2" LCD display | 3" LCD display |
|---|---|---|
| Display Format | 1,228,800 pixels | 921,000 pixels |
| Display Form Factor | Built-in | Built-in |
| Display Features | Display brightness control | Colour control, display brightness control |
| FLASH | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Camera Flash | Pop-up flash | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | 12 | 10 |
| Flash Modes | Fill-in mode, FP flash (high-speed synchro), 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 |
| VIDEOGRAPHY / CAMCORDER | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Digital Video Format | H.264, MOV | H.264 |
|---|---|---|
| Image Recording Format | JPEG, RAW + JPEG, NEF (RAW) | JPEG, DNG (RAW) + JPEG, DNG (RAW) |
| Max Video Resolution | 1920 x 1080 | 1920 x 1080 |
| Microphone Operation Mode | Stereo | Mono |
| Microphone Features | Sensitivity control | Sensitivity control |
| MEMORY | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| 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, SDXC UHS-I Memory Card |
| Memory Card | 8 GB SDHC | - |
| Image Storage | 6000 x 4000 - DX format 6000 x 3368 - DX-format in movie live view mode (16:9) 4800 x 3200 - 1.3x crop 4800 x 2696 - 1.3x crop in movie live view mode (16:9) 4494 x 3000 - DX format 4496 x 2528 - DX-format in movie live view mode (16:9) 3600 x 2400 - 1.3x crop 3600 x 2024 - 1.3x crop in movie live view mode (16:9) 2992 x 2000 - DX format 2992 x 1680 - DX-format in movie live view mode (16:9) 2400 x 1600 - 1.3x crop 2400 x 1344 - 1.3x crop in movie live view mode (16:9) |
- |
| Video Capture | H.264 - 1920 x 1080 - 60 fps H.264 - 1920 x 1080 - 50 fps 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 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps |
| BATTERY AND CHARGING | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Battery Type | Nikon EN-EL15 Lithium Ion | Pentax D-Li109 Lithium Ion |
|---|---|---|
| Details | Nikon EN-EL15 Li-ion rechargeable battery (included) | Pentax D-Li109 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 950 shots | Photo shooting - 480 shots (50% flash usage) Playback - 4.5 hours |
| CONNECTIONS | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Interface | HDMI, USB 2.0 | HDMI |
|---|---|---|
| Connectivity Features | Wi-Fi ready | - |
| Print Standard | Direct print, DPOF support, Exif Print support, PictBridge support | DPOF support, Exif Print support |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 HDMI output Remote control Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) |
USB 2.0 HDMI output (19 pin micro HDMI Type D) |
| FEATURES | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Self-Timer Delay | 10 sec, 2sec, 5 sec, 20sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 6 frames per second, 7 frames per second | 3 frames per second, 5.4 frames per second |
| HDR Mode | - | Auto HDR mode |
| Additional Features | Date/time stamp, depth-of-field preview button, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, GPS ready, in-camera red-eye fix, interval shooting mode, highlight point display, in-camera film editing, Active D-Lighting technology, Dust Delete Data system, Scene Recognition System (SRS), automatic display brightness adjustment, Chromatic Aberration Compensation (CAC), Eye-Fi Card Ready, High ISO NR, no anti-aliasing filter, noise reduction over long exposures, Lens Distortion Correction | RGB primary colour filter, depth-of-field preview button, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera film editing, in-camera RAW processing, HDR image enhancement technology, hue control, Eye-Fi Card Ready, LED body illumination |
| OTHERS | Nikon D7100 + AF-S DX 18-105mm VR | Pentax K-S1 |
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| Included Accessories | Eyepiece cover, lens hood, battery charger, dust cap, body cap, lens cap, neck strap, carrying case, USB cable, eyecup, shoe cap | Battery charger, body cap, shoulder strap, eyecup, shoe cap |
|---|---|---|
| Software | Drivers & Utilities, Nikon ViewNX 2 | Drivers & Utilities |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | -10 °C |
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