| key specs |
| Camera Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 20.1 MP |
| Sensor Type | CMOS | CMOS |
| Display Size | 3 inch | 3 inch |
| Battery Type | Lithium ion | Lithium ion |
| Display Type | - | TFT LCD |
| general |
| Brand | Sony | Ricoh |
| Model | ILCE 3500J 20.1MP DSLR Camera | Pentax K-S1 20.1MP DSLR Camera |
| Model Name | ILCE 3500J | Pentax K-S1 |
| Color | Black | Black |
| Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 20.1 MP | 20.1 MP |
| Dimensions(WxHxD) | 7.1 x 9.6 x 12.9 cm | 121 x 93 x 70 mm |
| Face Detection | Yes | - |
| Temperature | 0 to 40 | 0 to 40 |
| Series | - | Pentax |
| Weight | - | 558 GM |
| sensor features |
| Sensor Type | CMOS | CMOS |
| ISO Rating | ISO 100 - 16000 | - |
| Maximum ISO | 16000 ISO | - |
| Maximum FPS | 3.5 | - |
| Sensor Technology | Exmor APS HD CMOS | - |
| Sensor Size | - | 23.5 x 15.6 mm |
| lens features |
| Aperture Range | F4 - F5.6 | F3.5 (W) - F5.6 (T) / F4.0 (W) - F5.6 (T) |
| Manual Focus | Yes | Yes |
| Color Filter | Primary RGB Color Filter | Primary RGB Color Filter |
| Lens Type | - | Pentax KAF2 |
| Focal Length | - | 18 - 55 mm / 50 - 200 mm |
| viewfinder features |
| Viewfinder Magnification | 0.70x with 50 mm Lens at Infinity, -1 m | 0.95x |
| Viewpoint Dioptric Adjustment | Eye Relief 21 mm from the Eyepiece, 15 mm from the Eyepiece Frame at -1 m | -2.5m to +1.5m |
| Other Viewfinder Features | Diopter Control -4 m - 3.5 m | Standard focusing screen (Natural-Bright-Matte III)Depth Of Field Preview (Optical (diaphragm stop-down), digital) |
| Viewfinder Coverage | - | 100% |
| Viewfinder Eye Point | - | 20.5 mm |
| focus features |
| Focus Mode | Autofocus, DMF Direct Manual Focus, Manual Focus | - |
| Auto Focus | Yes | Yes |
| Metering Modes | Multi-segment, Center-weighted, Spot | Multi, Center-Weighted, Spot |
| White Balancing | Auto WB, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, C.Tem, C.Filter, Custom | Daylight White, W Cool White, L Warm White), Tungsten Light, Flash, CTE, Manual WB, Color |
| Other Focus Features | Focus Sensitivity Range 0 EV - 20 EV ISO 100 Equivalent with F2.8 Lens Attached, Autofocus Mode AF-S Single-shot AF, AF-C Continuous AF, Focus Area Multi Point 25 Points, Center-weighted, Flexible Spot, Tracking Focus, Focus lock, Built-in AF Illuminator Distance 0.5 - 3.0 m with E 18 - 50 mm F4 - 5.6 Lens Attached, MF Assist, Contrast Detect AF | 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 |
| exposure features |
| Exposure Compensation | Still Images +/- 3.0 EV 1/3 EV Steps, Movies +/- 2.0 EV 1/3 EV Steps | - |
| Other Exposure Features | Exposure Control Sensitivity Range 0 EV - 20 EV ISO 100 Equivalent with F2.8 Lens Attached, Exposure Control Metering System Type 1200-zone Evaluative Metering | - |
| shutter features |
| Shutter Type | Electronically-controlled, Vertical-traverse, Focal-plane Type | - |
| Self-timer | Yes | Yes |
| Continuous Shots | Continuous Mode Maximum 2.5 fps, Speed Priority Continuous Shooting Maximum 3.5 fps | Hi 5.4 fps, Lo 3.0 fps |
| Shutter Speed | - | 1/6000 sec (Max) & 30 sec (Min) |
| flash features |
| Built-in Flash | Yes | Yes |
| Flash Modes | Flash Off, Auto Flash, Fill-flash, Slow Sync, Rear Sync, Red-eye Reduction On / Off Selectable, Hi-speed Sync | Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual |
| Flash Compensation | 1/3 EV Steps, +/- 2 EV | - |
| Other Flash Features | Guide Number 4 Meters at ISO 100, Flash Coverage 16 mm Focal-length Printed on the Lens Body, Control Pre-flash TTL, Recycling Time 4 sec | - |
| External Flash | - | Yes |
| image features |
| Image Format | RAW and JPEG, JPEG Fine, JPEG Standard | JPEG, RAW, RAW + JPEG |
| Gross Pixel | 20.4 MP | - |
| Red Eye Reduction | Yes | - |
| Still Image Size | L 5456 x 3064 17 M, M 3872 x 2176 8.4 M, S 2736 x 1536 4.2 M | - |
| Maximum Resolution | - | 5472 x 3648 |
| Image Stabilizer | - | Yes |
| Picture Angle | - | 28 mm Ultra Wide-angle |
| display features |
| Display Size | 3 inch | 3 inch |
| LCD Display Image Resolution | 230400 dots | - |
| Other Display Features | Picture Effects Posterization Black and White, Pop Color, Retro Photo, Partial Color R, G, B, Y, High Contrast Mono, Toy Camera, Soft High-key, Soft Focus, HDR Painting, Rich-tone Mono, Miniature, Histogram, Real-time Image Adjustment On / Off, Playback Single with or without Shooting Information RGB Histogram and Highlight / Shadow Warning, 6 / 12 Frame Index View, Enlarged Display Mode L 15.1x, M 10.7x, S 7.6x, Panorama Standard 19x, Panorama Wide 29x, Image Orientation On / Off Selectable, Slideshow | - |
| Display Type | - | TFT LCD |
| Display Resolution | - | 921K dots |
| LCD Display | - | Fixed Articulated LCD |
| connectivity features |
| USB | 2 | Yes |
| HDMI | - | Yes |
| storage and power features |
| Upgradable Memory | Yes | Yes |
| Card Type | Memory Stick PRO Duo, Memory Stick PRO HG Duo, Memory Stick XC HG Duo, SD / SDHC / SDXC | SD, SDHC, SDXC (UHS-1 compliant), Eye-Fi Card, FLU Card |
| Battery Type | Lithium ion | Lithium ion |
| Other Storage Features | USB Mass Storage | - |
| Power Supply | - | AC adapter K-AC128 |
| Battery Life | - | 480 |
| audio and video features |
| Microphone | Built-in Microphone Stereo | Built-in stereo microphone |
| Speaker | Built-in, Monaural, Volume Settings in 8 Steps between 0 and 7 | Mono Speaker |
| Video Format | JPEG DCF 2.0, Exif 2.3, MPF Baseline Compliant, RAW Sony ARW 2.3 Format, AVCHD 2.0 Compliant, MP4 | H.264 |
| Audio Features | - | Adjustable recording sound level |
| modes and functions features |
| Shooting Modes | Single Shooting, Continuous Shooting, Speed Priority Continuous Shooting, Bracketing | 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 |
| Scene Modes | Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night View, Hand-held Twilight, Anti Motion Blur | - |