| key specs |
| Camera Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 10.2 MP |
| Sensor Type | CMOS | CCD |
| Display Type | TFT LCD | - |
| Display Size | 3 inch | 3 inch |
| Battery Type | Lithium ion | Lithium ion |
| general |
| Brand | Ricoh | Nikon |
| Model | Pentax K-S1 20.1MP DSLR Camera | D3000 10.2MP DSLR Camera |
| Model Name | Pentax K-S1 | D3000 |
| Series | Pentax | - |
| Color | Black | Black |
| Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 10.2 MP |
| Dimensions(WxHxD) | 121 x 93 x 70 mm | 97 x 126 x 64 mm |
| Weight | 558 GM | 485 GM |
| Temperature | 0 to 40 | 0 to 40 |
| Model Number | - | D3000 |
| Tripod Socket | - | Yes |
| Ports | - | Type C, Mini HDMI Out CEC Compatible |
| sensor features |
| Sensor Type | CMOS | CCD |
| Sensor Size | 23.5 x 15.6 mm | 22.3 x 14.9 mm |
| lens features |
| Lens Type | Pentax KAF2 | - |
| Focal Length | 18 - 55 mm / 50 - 200 mm | - |
| Aperture Range | F3.5 (W) - F5.6 (T) / F4.0 (W) - F5.6 (T) | - |
| Manual Focus | Yes | Yes |
| Color Filter | Primary RGB Color Filter | - |
| Lens Mount | - | Nikon F mount |
| Dust Reduction | - | Yes |
| viewfinder features |
| Viewfinder Coverage | 100% | - |
| Viewfinder Magnification | 0.95x | - |
| Viewpoint Dioptric Adjustment | -2.5m to +1.5m | - |
| Viewfinder Eye Point | 20.5 mm | - |
| Other Viewfinder Features | Standard focusing screen (Natural-Bright-Matte III)Depth Of Field Preview (Optical (diaphragm stop-down), digital) | - |
| View Finder | - | Yes |
| View Finder Type | - | Eye-level Penta-Dach Mirror |
| focus features |
| Auto Focus | Yes | Yes |
| Metering Modes | Multi, Center-Weighted, Spot | - |
| White Balancing | Daylight White, W Cool White, L Warm White), Tungsten Light, Flash, CTE, Manual WB, Color | Auto hybrid control with image sensor and 420-segment RGB sensor 12 manual modes, preset manual, fine tuning |
| Other Focus Features | Interchangeable Lens Features [Min. Aperture (F22.0 - F32.0), Number of diaphragm blades (6), Lens Optics (11 Elements & 10 Groups), Min. Focus (1.1 m), Maximum magnification (0.24x), Full Time Manual Focus, Filter Thread (49 mm), Rotary Zoom Method | - |
| shutter features |
| Shutter Speed | 1/6000 sec (Max) & 30 sec (Min) | 1/4000 sec |
| Self-timer | Yes | Yes |
| Continuous Shots | Hi 5.4 fps, Lo 3.0 fps | Continuous shooting mode Approx. 3fps. |
| flash features |
| Built-in Flash | Yes | Yes |
| External Flash | Yes | Yes |
| Flash Modes | Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual | Front-curtain sync, Red-eye reduction, Slow sync with red-eye reduction, Slow sync, rear-curtain sync |
| image features |
| Image Format | JPEG, RAW, RAW + JPEG | JPEG, NEF |
| Maximum Resolution | 5472 x 3648 | - |
| Image Stabilizer | Yes | - |
| Picture Angle | 28 mm Ultra Wide-angle | Approx 1.5x lens focal length |
| display features |
| Display Type | TFT LCD | - |
| Display Size | 3 inch | 3 inch |
| Display Resolution | 921K dots | - |
| LCD Display | Fixed Articulated LCD | - |
| connectivity features |
| HDMI | Yes | - |
| USB | Yes | - |
| Wifi | - | No |
| storage and power features |
| Upgradable Memory | Yes | - |
| Card Type | SD, SDHC, SDXC (UHS-1 compliant), Eye-Fi Card, FLU Card | SD |
| Power Supply | AC adapter K-AC128 | - |
| Battery Type | Lithium ion | Lithium ion |
| Battery Life | 480 | - |
| Batteries Included | - | Yes |
| audio and video features |
| Microphone | Built-in stereo microphone | - |
| Speaker | Mono Speaker | - |
| Audio Features | Adjustable recording sound level | - |
| Video Format | H.264 | - |
| Video Resolution | - | 2,896 x 1,944 |
| modes and functions features |
| Shooting Modes | EFFECT Mode (Faded Color, Clear Tone, Brilliant Color, Unicolor Bold, Vintage Color, Cross Processing, Warm Fade, Tone Expansion, Bold Monochrome, Infrared Filter, Vibrant Color Enhance), Custom Image modes (Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing | Single frame shooting mode, Continuous shooting mode approx. 3fps, Self-timer mode, Delayed remote mode 2sec delay, Quick-response remote mode |