| key specs |
| Camera Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 20.9 MP |
| Sensor Type | CMOS | CMOS |
| Display Type | TFT LCD | - |
| Display Size | 3 inch | 3.2 inch |
| Battery Type | Lithium ion | Lithium ion |
| Touchscreen | - | Yes |
| general |
| Brand | Ricoh | Nikon |
| Model | Pentax K-S1 20.1MP DSLR Camera | D500 20.9MP DSLR Camera |
| Model Name | Pentax K-S1 | D500 |
| Series | Pentax | - |
| Color | Black | Black |
| Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 20.9 MP |
| Dimensions(WxHxD) | 121 x 93 x 70 mm | 115 x 147 x 81 mm |
| Weight | 558 GM | 860 GM |
| Temperature | 0 to 40 | 0 to 40 |
| Model Number | - | D500 Body Only |
| SLR Variant | - | Body Only |
| Tripod Socket | - | Yes |
| Ports | - | HDMI |
| Accessory Shoe | - | ISO 518 Hot-shoe with Sync and Data Contacts and Safety Lock |
| sensor features |
| Sensor Type | CMOS | CMOS |
| Sensor Size | 23.5 x 15.6 mm | 36.0 x 24.0 |
| ISO Rating | - | ISO 100 - 51200 |
| 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 With AF Coupling and AF Contacts |
| Dust Reduction | - | Yes |
| Other Lens Features | - | Lens Aperture Instant Return, Electronically Controlled, Compatible Lenses Compatible with AF NIKKOR Lenses, Including Type G, E, and D Lenses Some Restrictions Apply to PC Lenses and DX Lenses, AI-P NIKKOR Lenses and Non-CPU AI Lenses Exposure Modes A and M Only, IX NIKKOR Lenses, Lenses for the F3AF and Non-AI Lenses can not be Used, The Electronic Rangefinder can be Used with Lenses that Have a Maximum Aperture of f/5.6 or Faster The Electronic Rangefinder Supports 15 Focus Points with Lenses that Have a Maximum Aperture of f/8 or Faster, of Which 9 Points are Available for Selection |
| viewfinder features |
| Viewfinder Coverage | 100% | 98% |
| Viewfinder Magnification | 0.95x | 1.0 x 50 mm f/1.4 Lens at Infinity, |
| Viewpoint Dioptric Adjustment | -2.5m to +1.5m | -2 to +1 m sup -1 |
| 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) | Reflex Mirror Quick Return Type, Depth-of-field Preview Yes, Pressing Pv Button Stops Lens Aperture Down to Value Selected by User A and M Modes or by Camera P and S Modes , Viewfinder Eye Point 16 mm |
| View Finder | - | Yes |
| View Finder Type | - | Eye-level Pentaprism Single-lens Reflex Viewfinder |
| focus features |
| Auto Focus | Yes | Yes |
| Metering Modes | Multi, Center-Weighted, Spot | Programmed Auto with Flexible Program P, Shutter-priority Auto S, Aperture-priority Auto A, Manual M |
| White Balancing | Daylight White, W Cool White, L Warm White), Tungsten Light, Flash, CTE, Manual WB, Color | Auto 3 Types, Incandescent, Fluorescent 7 Types, Direct Sunlight, Flash, Cloudy, Shade, Preset Manual Upto 6 Values can be Stored, Spot White Balance Measurement Available During Live view, Choose Color Temperature 2500 K to 10000 K, All with Fine-tuning, Bracketing Types Exposure, Flash, White Balance, ADL |
| 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 | Focal Length in 35 mm 135 Format Equivalent to 1.5x that of Lenses with FX Format Angle of View, Detection Range |
| Focus Points | - | 153, 153 Focus Points of which 55 or 15 are Available for Selection |
| shutter features |
| Shutter Speed | 1/6000 sec (Max) & 30 sec (Min) | 1/8000 - 30 sec |
| Self-timer | Yes | Yes |
| Continuous Shots | Hi 5.4 fps, Lo 3.0 fps | - |
| Shutter Type | - | Electronically-controlled Vertical Travel Focal-plane Mechanical Shutter, Electronic Front-curtain Shutter Available in Mirror Up Release Mode |
| Other Shutter Features | - | Approximate Frame Advance Rate 10 fps, CL 1 to 9 fps, CH 10 fps, QC 3 fps, Speed 1/8000 to 30 sec in Steps of 1/3, 1/2 or 1 EV, Bulb, Time, X250 |
| flash features |
| Built-in Flash | Yes | - |
| External Flash | Yes | - |
| Flash Modes | Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual | Front-curtain Sync, Slow Sync, Rear-curtain Sync, Red-eye Reduction, Red-eye Reduction with Slow Sync, Slow Rear-curtain Sync, Off, Auto FP High-Speed Sync Supported |
| Flash Compensation | - | 1/3, 1/2 or 1 EV in Steps of -3 to +1 EV |
| Other Flash Features | - | Control TTL i-TTL Flash Control Using RGB Sensor with Approximately 180 K 180,000 Pixels, i-TTL Balanced Fill-flash for Digital SLR is Used with Matrix, Center-weighted and Highlight-weighted Metering, Standard i-TTL Fill-flash for Digital SLR with Spot Metering, Flash-ready Indicator Lights when Optional Flash Unit is Fully Charged, Flashes After Flash is Fired at Full Output |
| image features |
| Image Format | JPEG, RAW, RAW + JPEG | File Format NEF RAW 12 or 14 bit Lossless Compressed, Compressed or Uncompressed, Large, Medium and Small Available Medium and Small Images are Recorded at a bit Depth of 12 bits Using Lossless Compression, TIFF RGB, JPEG JPEG-baseline Compliant with Fine 1 4, Normal 1 8 or Basic 1 16 Compression, Optimal Quality Compression Available, NEF RAW+JPEG Single Photograph Recorded in Both NEF RAW and JPEG Formats |
| Maximum Resolution | 5472 x 3648 | - |
| Image Stabilizer | Yes | - |
| Picture Angle | 28 mm Ultra Wide-angle | - |
| Live View Shooting | - | Yes |
| display features |
| Display Type | TFT LCD | - |
| Display Size | 3 inch | 3.2 inch |
| Display Resolution | 921K dots | - |
| LCD Display | Fixed Articulated LCD | - |
| Touch Screen | - | Yes |
| Other Display Features | - | Effective Angle of View Nikon DX Format, Image Sensor Format DX, Monitor Tilting TFT Touch Sensitive LCD with 100% Frame Coverage and Manual Monitor Brightness Control |
| connectivity features |
| HDMI | Yes | - |
| USB | Yes | - |
| Wifi | - | Yes |
| storage and power features |
| Upgradable Memory | Yes | - |
| Card Type | SD, SDHC, SDXC (UHS-1 compliant), Eye-Fi Card, FLU Card | - |
| Power Supply | AC adapter K-AC128 | - |
| Battery Type | Lithium ion | Lithium ion |
| Battery Life | 480 | - |
| Number of Batteries | - | 1 |
| audio and video features |
| Microphone | Built-in stereo microphone | - |
| Speaker | Mono Speaker | - |
| Audio Features | Adjustable recording sound level | Audio Recording Device Built-in Stereo or External Microphone, Sensitivity Adjustable |
| Video Format | H.264 | MOV, H.264 / MPEG-4 Advanced Video Coding |
| Video Resolution | - | 1280 x 720 |
| 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 | - |
| exposure features |
| Exposure Compensation | - | 1/3, 1/2 or 1 EV in Steps of -5 to +5 EV |
| Manual Exposure | - | Yes |
| Other Exposure Features | - | Metering System TTL Exposure Metering Using RGB Sensor with Approximately 180 K 180,000 Pixels, Exposure Lock Luminosity Locked at Detected Value |