PEF Viewer for Mac OS X and Windows

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Our Special Prices are valid until May 22, 2024.

FastRawViewer is the first and the only dedicated tool specifically designed and developed for extremely fast display, visual and technical analysis, basic corrections, sorting and setting aside or directly transferring for further processing of RAW images.

Full FastRawViewer functionality is provided for all digital cameras listed below.

Both Mac OS X (10.6+) and Windows (7-10, XP, Vista) platforms are supported.

FastRawViewer - Viewer for PEF

Do you have RAW shots from Pentax or Samsung camera(s) in PEF format

that you have to quickly view, evaluate, and sort?

FastRawViewer is the tool you need.

We offer a fully functional 30-day free trial of FastRawViewer, without requesting any of your personal information

Support for Pentax Cameras that Use PEF RAW Format

SLR, K series, APS-C

  • *ist D
  • *ist DL
  • *ist DL2
  • *ist DS
  • *ist DS2
  • K-30
  • K-50
  • K-70
  • K-500
  • K100D
  • K100D Super
  • K110D
  • K200D
  • K2000/K-m
  • K-x
  • K-r
  • K-S1
  • K-S2

Compact, Q series

  • Q10

Pro SLR, K series, Full Frame (FF)

  • K-1
  • K-1 II

Pro SLR, 645 series, Medium Format (MF)

  • 645D
  • 645Z

Pro SLR K series APS-C

  • K-3
  • K-3 Mark II
  • K-3 Mark III
  • K-3 Mark III Monochrome
  • K-5
  • K-5 II
  • K-5 IIs
  • K-70
  • K10D
  • K20D
  • KF
  • KP

Support for Samsung Cameras that Use PEF RAW Format


Samsung dSLR

  • GX-1L
  • GX-1S

For a detailed list of currently supported cameras, devices, and RAW file extensions

please see the Full List of Supported Cameras.

If you have PEF files that FastRawViewer can't open properly, please send us an email and provide us with sample files. We never share any image files sent to us.