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Included items
- USB Cable I-USB7 - Strap O-ST132 - Rechargeable Lithium-ion Battery D-LI109
- Bat tery Charger D-BC109 - Software (CD-ROM) S-SW138
- Hot shoe cover FK , Body Mount Cover


Type: TTL autofocus, auto-exposure SLR digital-still camera with built-in retractable P-TTL flash
Lens Mount: PENTAX KAF2 bayonet mount (AF coupler, lens information contacts,K-mount with power contacts)
Compatible Lens: KAF3, KAF2 (power zoom not compatible), KAF,KA mount lenses
Image Capture
Image Sensor: Primary color filter, CMOS. Size: 23.7×15.7 (mm)
Effective Pixels: Approx.16.28 megapixels
Total Pixels: Approx. 16.49megapixels
Dust Removal: SP coating and CMOS sensor operations
Sensitivity (Standard output): AUTO/100 to 51200 (EV steps can be set to 1EV, 1/2EV, or 1/3EV)
Image Stabilizer: Sensor shift Shake Reduction
File Formats File Format: RAW (DNG), JPEG (Exif 2.3), DCF2.0 compliant
Recorded Pixels: JPEG:16M(4928×3264), 12M(4224×2816), 8M(3456×2304), 5M(2688×1792) RAW:16M(4928×3264)
Quality Levell: RAW (12bit): DNG JPEG: ★★★(Best), ★★(Better), ★(Good) RAW and JPEG simultaneously recordable
Color Space: sRGB,AdobeRGB
Storage Medium: SSD, SDHC,and SDXC Memory Card (Eye-Fi card compatible)
Storage Folder: Date (100_1018,100_1019...)/PENTX (100PENTX, 101PENTX...) PENTX can be changed by user
View Finder Type: Pentaprism Finder
Coverage (FOV): Approx. 100%
Magnification: Approx. 0.92×(50mmF1.4 at infinity)
Eye-Relief Length: Approx. 21.7mm (from the view window), Approx 24.5mm (from the center of lens)
Diopter Adjustment: Approx. –2.5m to +1.5m-1
Focusing Screen: Interchangeable Natural-Bright-Matte III focusing screen
Live View Type: TTL method using CMOS image sensor
Focusing Mechanism: Contrast detection + Face Detection, Tracking, Select, Spot
Display: Field of View approx. 100%, Magnified view (2×, 4×, 6×), Grid display (4×4 Grid, Golden Section, Scale display), Bright/dark area warning,Histogram
LCD Monitor Type: TFT color LCD monitor, wide angle viewing
Size: 3.0 inches
Dots: Approx. 921,000 dots
Adjustment: Brightness and colors adjustable
White Balance Auto: Method using a combination of the CMOS image sensor and the light source detection sensor
Preset: Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N:Daylight White, W: Cool White, L: Warm White), Tungsten, Flash, CTE, Manual, Color
Manual: Configuration using the display screen (up to 3 settings can be saved), Color Temperature settings, Copying the white balance setting of a captured image
Fine Adjustment: Adjustable ±7 steps on A-B axis or G-M axis
Autofocus System Type: TTL: phase-matching autofocus
Focus Sensor: SAFOX IX i+, 11 point (9 cross type focus points in the center)
Brightness Range: EV–1 to 18 (ISO 100)
AF Mode: Auto AF (AF.A), Single AF (AF.S), Continuous AF (AF.C) Focus priority or shutter priority mode for AF.S Focus priority or FPS priority mode for AF.C
AF Point Selection: 5Auto:5 points,Auto:11 points, Select(Expanded Area AF available), Spot
AF Assist Light: Dedicated LED AF assist light
Metering Type: TTL open aperture, 77 segmented metering, center-weighted and spot metering
Exposure Compensation: EV0 to 22 (ISO100 at 50mm F1.4)
Exposure Modes: Auto Picture mode: automatically selects from Standard, Portrait, Landscape, Macro, Moving Object,Night Scene Portrait, Night Scene, Blue Sky, Forest Scene Mode: Portrait,Landscape, Macro,Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR*, Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum *JPEG only Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Shutter & Aperture Priority, Manual, Bulb
EV Compensation: ± 5EV (1/2EV step or 1/3EV can be selected)
AE Lock: Can be assigned to the AF/AE-L button from the menu.
Shutter Type: Electronically controlled vertical-run focal plane shutter
Shutter Speed: Auto:1/6000 to 30 sec., Manual: 1/6000 to 30 sec. (1/3EV steps or 1/2EV steps), Bulb
Drive Modes Mode Selection: Single frame, Continuous (Hi, Lo), Self-timer (12 sec., 2 sec.), Remote Control (0 sec., 3 sec.), Auto Bracketing (3 frames)
Continuous Shooting: Approx. 6 fps (JPEG, Continuous Hi), Approx. 3 fps (JPEG, Continuous Lo)
Built-in Flash Type: Built-in retractable P-TTL pop-up flash Guide number: approx. 12 (ISO100/m)Angle of view: coverage: wide angle-lens, equivalent to 28mm in 35mm format
Flash Modes: P-TTL, Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, High-Speed Sync and Wireless Sync are also available with PENTAX dedicated external flash. Sync Speed: 1/180 sec.
Speed: 1/180 sec.
Flash Exposure Compensation: ー2.0~+1.0EV
Capture Functions Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass,Reversal Film, Monochrome, Cross Processing
Noise Reduction: Slow Shutter Speed NR,High-ISO NR
Dynamic Range Setting: Highlight Correction, Shadow Correction
Lens Correction: Distortion Correction, Lateral Chromatic Aberration Correction
Digital Filter: Extract Color, Toy Camera, Retro, High Contrast, Shading, Inver t Color, Color
HDR Capture: Auto, HDR 1, HDR 2, HDR 3, Automatic composition correction function, Exposure Bracket Value: ±1EV, ±2EV, ±3EV
Multi-exposure: Number of shots: 2-9,Exposure adjusted automat ical ly.
Horizon Correction: SR On:correction up to 1 degrees, SR Off:correction up to 1.5 degrees
Composition Adjustment: Adjustment range of ±1mm up, down, left or right (0.5mm when rotated), Rotating range of 1 degrees
Interval Shooting: Shooting interval: 3 sec. to 24 hr., Number of shots: up to 999 images, Star t Interval set ting: immediately, f rom the set t ime
Electronic Level: Displayed in viewfinder (horizontal direction only); displayed on LCD monitor (horizontal direction and vertical direction)
Movie File Format : MPEG–4AVC/H.264
Recorded Pixels : FullHD (1920×1080,16:9,30fps/25fps/24fps), HD(1280×720,16:9,60fps/50fps/30fps/25fps/24fps), VGA(640×480,4:3,30fps/25fps/24fps)
Quality Level: ★★★(Best),★★(Better),★(Good)
Sound: Built-in monaural microphone, Recording Sound Level
Recording Time: Up to 25 minutes; automatically s tops recording i f the internal temperature of the camera becomes high.
Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Radiant,Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing
Digital Filter: Extract Color, Toy Camera, Retro, High Contrast, Invert Color, Color
Interval Movie: Recording interval: 3 sec., 5 sec., 10 sec., 30 sec., 1 min., 5min., 10 min., 30 min., 1 hr.,Recording time: 4 sec. to 99 hr.,Start Interval setting: immediately, from the set time
Playback Functions Playback View: Single frame, Multi-image display (4, 9, 16, 36, 81 segmentation), Display magnification (up to 16x, scrolling and quick magnification avai lable), rotating, histogram, bright/dark area warning, copyright display, calendar filmstrip, display, folder display, slideshow, Eye-Fi transfer
Delete: Delete single image, delete all images, select & delete, delete folder, delete instant review image
Digital Filter: Monochrome, Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Color, Tone Expansion, Sketch Filter, Water Color, Pastel, Posterization, Miniature, Soft, Starburst, Fish-eye, Slim,Base Parameter Adjustment
RAW Development: File Format (JPEG), Image Capture Settings(Aspect Ratio, Recorded Pixels, Quality Level, Color Space), Lens Correction (Distortion Correction, Lateral Chromatic Aberration Correction), Custom Image, White Balance, Sensitivity, High-ISO NR, Shadow Correction
Edit: Resize, Cropping (Aspect ratio and Slant adjustment available), Index, Movie Editing (Divide or delete selected frames),Capturing a JPEG still picture f rom a movie, Saving the RAW file data in the bufiffer memory
Customization USER Mode: Up to 2 set t ings can be saved
Custom Functions: 22 items
Mode Memory: 12 items
Button/Dial Customization: RAW/Fx Button (One Push File Format,Exposure Bracketing, Optical Preview, Digital Preview, Composition Adjustment, Select AF Point), AF/AE-L button (Enable AF1, Enable AF2, Cancel AF, AE Lock) Various settings for the action of the e-dials in each exposure mode can also be saved.
Text Size: Standard,Large
World Time: World Time settings for 75 cities (28 time zones)
AF Fine Adjustment: ±10 step, Uniform adjustment, Individual adjustment (up to 20 can be saved)
Copyright Information: Names of "Photographer" and "Copyright Holder" are embedded to the
Power Supply Battery Type: Four AA batteries (Lithium, Ni-MH rechargeable, alkaline) with AA Battery Holder D-BH109, Rechargeable Lithium-ion Battery D-LI109 can be used.
AC Adapter: AC Adapter Kit K-AC128 (optional)
Battery Life: [Rechargeable Lithium-ion Battery D-LI109]:Number of recordable images: approx. 410 images (with 50% flash usage), approx. 480 images (without flash usage) Playback time: approx. 270minutes * Using a new lithium-ion battery under the temperature at 23°C, Tested incompliance with CIPA standard. Actual results may vary depending on the shooting conditions/circumstances. [AA Lithium batteries]Number of recordable images:approx. 710 images (with 50% flash usage), approx. 1250 images (without flash usage) Playback time: approx. 560 minutes * Using 4x Energizer Ultimate Lithium Batteries under the temperature at 23°C, Tested in compliance with CIPA standard. Actual results may vary depending on the shooting conditions/circumstances.
To learn more about Energizer lithium AA batteries click here
Interfaces Connection Port: USB2.0(high-speed compatible)/AVoutput terminal
USB Connection: MSC/PTP
Video Output Format: NTSC/PAL
Dimensions and Weight Dimensions: Approx. 129.0 mm (W) × 96.5 mm (H) × 70.0 mm (D) (excluding the operation par ts and protrusion)
Weight: Approx. 675 g (loaded and ready with the dedicated battery and SD Memory Card), Approx. 590 g (body only)
Included accessories Package Contents: USB Cable I-USB7, Strap O-ST132, four AA batteries, AA Battery Holder D-BH109, Sof tware (CD-ROM) S-SW138 <Mounted on the camera> Hot shoe cover FK , Body Mount Cover
Software: SILKYPIX® Developer Studio 3.0 LE

Included software for processing and adjusting RAW files
「SILKYPIX Developer Studio 3.0 LE for RICOH IMAGING」

With this software, various adjustments can be carried out on RAW images, such as exposure and white balance adjustment, high-grade color swapping, and compensation of lens aberrations, all using a computer. This software makes it easy to enjoy utilizing RAW information to process high-quality images with intuitive controls.


Operating environment for software bundled with the K-50

To connect the camera to a computer, and use the included software SILKYPIX Developer Studio 3.0 LE for RICOH IMAGING, the following computer requirements must be met.

Supported OS Windows Windows®8 (32 bit/64 bit)/Windows®7 (32 bit/64 bit)/ Windows Vista® (32 bit/64 bit)/Windows® XP (32 bit/64 bit)/ (SP3 or later, Home/Pro 32 bit)
Administrator privileges are required for installation In 64 bit or higher operating systems, this can be run as a 32 bit application
Macintosh Mac OS X 10.8/10.7/10.6/10.5
CPU Windows Intel® Pentium® compatible processor (Pentium® 4/ADM Athlon™ XP or more) Multi core (IntelPentium® Core™ i7, IntelPentium® Core™ i5, IntelPentium® Core™ 2 Quad, IntelPentium® Core™ 2 Duo/AMD Phenom™ II X6, X4/AMD Athlon™ II X4, X2, etc )
Macintosh Intel® compatible processor/Power PC®
Memory 1GB or more (2GB or more recommended)
Hard drive space Program installation and start-up: 100 MB or more of available space
Image file saving: Approximately 10 MB per file
Monitor 1024 x 768 dots, 24 bit full-color or more
Others Input devices such as a keyboard, mouse, etc.
- A computer with a supported OS preinstalled, updated to the latest version, and equipped with USB ports as standard equipment is required.
Operation is not guaranteed on all computers with the recommended operating environment.

Storage capacity (with a 4GB memory card at a 3:2 aspect ratio)

Recorded pixels 16M(4928×3264) 16M(4928×3264) 12M(4224×2816) 8M(3456×2304) 5M(2688×1792)
Quality level DNG ★★★ ★★ ★★★ ★★ ★★★ ★★ ★★★ ★★
4GB 150 421 744 1471 569 1005 1978 843 1489 2873 1387 2413 4641

Movie recording capacity with a 4GB memory card at Best quality level

Recorded pixels Full HD
Frame rate 30fps 25fps 24fps 60fps 50fps 30fps 25fps 24fps 30fps 25fps 24fps
4GB 16:21 19:34 20:21 16:21 19:34 28:18 33:47 35:08 41:51 49:48 51:47
• Operation-confirmed SD/SDHC/SDXC memory cards: [Panasonic/Toshiba/SanDisk] SD card memory capacity: 1GB, 2GB; SDHC card memory capacity: 4GB, 8GB, 16GB, 32GB;
SDCX card memory capacity: 64GB. [SanDisk] SDXC card memory capacity: 128GB. [Eye-Fi Japan] SDHC card memory capacity: 4GB (Connect X2), 8GB (Mobile X2/Pro X2), 16GB (Pro X2).
• The above figures are efiective as of June 2013.
• Compatible with UHS-I speed class. • U se of a h igh-speed SD memory card is recommended for movie recording, as the recording may terminate during recording if the writing speed is too low. • Operation tests have been conducted by the individual memory card manufacturers. PENTAX does not guarantee their performance under any circumstances.

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