Download your free copy of GSD Calculator.

Version 5.12 available as of June, 19th 2020.

You may request a download link for latest version of GSD Calculator here, input your email address in the field below.
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GSD Calculator - aerial-survey-base

Latest version for Windows 10 Users:

 Latest update:
  • Vexcel Ultracam Osprey 4.1
  • PhaseOne 280MP
  • Sony Alpha ILCE-A7R II – bug removed, thanks to Yanning from China


  • IGI_DigiCAM-450 (PhaseOne 2019)
  • IGI_Dual-DigiCAM-200 (PhaseOne 2019)
  • IGI_Dual-DigiCAM-300 (PhaseOne 2019)
  • Leica CityMapper-2  High-Performance Urban (hybrid) Mapping Sensor
  • CityMapper-2 S & CityMapper-2 H separated (Thanks to Poul)

(note: you may always change focal in field „Cal. Focal Lenght“)

 previous updates:
  • IGI_DigiCAM-450 (PhaseOne 2019)
  • IGI_Dual-DigiCAM-200 (PhaseOne 2019)
  • IGI_Dual-DigiCAM-300 (PhaseOne 2019)
  • MicaSense RedEdgeM/MX (Multispectral) (thanks to Eduardo y Alejandro)
  • MicaSense Altum (Multispectral)
  • IGI DigiCam 150 included
  • IGI UrbanMapper – 2 final (change oblique sensor size)
  • bug fix for Leica ADS100 using SH100 sensor head (thanks to Valentin of Leica)
  • bug fixed showing wrong altitude of flight @ Vexcel Ultracam Falcon Mark II (thanks to Paul [Jacobs])
  • Oblique Camera Calculation for Ultracam Osprey Mark 3 Premium /Essential
  • IGI UrbanMapper-2 (preliminary)
  • PhaseOne iXM-RS150F/ iXM-RS100F (150 / 100 Megapixel)
  • improved for Windows 7 users.
    For diehard Win 7 users, which refuse to move to Windows 10,  we improved stability under Windows 7 to allow these users to participate on the latest version of the GSD Calculator. (Microsoft is no longer delivering feature updates to Windows 7, but will continue to support the operating system with security patches until 2020. Windows 8.1 mainstream support ends in 2018.)
  • changed pre-defined focal lengths for Ultracam Eagle and Falcon users, since most used focal is 100 mm (thanks to Roger of GRW & Paul of Jacobs)
  • other improvements (thanks to Travin of Kisik)
  • UltraCam Eagle Mark 3 updated
  •  Hasselblad A6D introduced
  • UltraCam Eagle Mark 3 with 26,460 x 17,004 pixel introduced
  •  Phase One iXU-RS1900  Dual Lens introduced
  • Samsung NX-1000 included for Daniel from CZ
  • Sony Alpha ILCE-A7R II
  • HySpex VNIR-1800 Hyperspectral sensor
  • Installation routine changed
  • Ground Speed Warning updated (see help, thanks to William of Sao Paulo)
    Ground Speed Warning was not updating when GSD changed
  • IGI Quattro-DigiCAM-400
  • IGI Quattro-DigiCAM-300
  • IGI DigiTHERM-1920-C
  • IGI DigiTHERM-1280-C
  • IGI DigiTHERM-640-C
  • IGI Penta DigiCAM-100    [Center]
  • IGI Penta DigiCAM-80    [Center]
  • 6-DAS-1 (Wehrli)
  • 4-DAS-1 (Wehrli)
  • 3-DAS-2 (Wehrli)
  • 3-DAS-1 (Wehrli)
  • Ultracam Falcon prime (Ultracam Falcon Mark II) updated (thanks to John from Pennsylvania)
  • Visionmap MIST IT
  • Visionmap MIST U
  • Visionmap MIST G
  • IGI UrbanMapper
  • IGI Digicam 100
  • naming conventions for Ultracam
  • more Help (ToolTips) included, move mouse over button/fields
  • Ultracam Condor included
  • IGI PentaCam updated
  • Nikon D810 + Sigma 30 mm lens (for Raja & Leo)
  • CS-1000 70mm lens included (for John)
  • Ultracam Falcon bugfix (thanks to Gianluca)
  • DMC III sensor type changed to CMOS
  • bugfix compatibility to Windows 7 & XP users
  • Leica ADS 100 – SH 120 included
  • Imao B66 included
  • PhaseOne IXU 1000 100 MP included.
  • DMC III intermediate image size corrected (Thanks to Kenneth)
GSD Calculator - aerial-survey-base