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What legacy version of Zemax I can use before April 2016

  • July 16, 2025
  • 1 reply
  • 90 views

oenthus01

Hello friends,

I have a license key that expires on April 2016. What is the last version of optic studio I can use? I am currently using 14.2 and its working fine but I don’t know if that is the last version of optic studio before april 2016. Any feedback will be helpful. 

Best answer by David.Nguyen

@oenthus01 

 

I don’t fully remember, but at the time those versions were named with a 2-digit number representing the year.

From the legacy list: https://support.zemax.com/hc/en-us/articles/1500005577342-OpticStudio-Legacy-Version-System-Requirements.

I’d try 16 as 16.5 might have been released latter that year. Otherwise, 15.5 SP3 (released in 2015).

Also, just in case…

Take care,

 

David

1 reply

David.Nguyen
Luminary
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  • Luminary
  • Answer
  • July 21, 2025

@oenthus01 

 

I don’t fully remember, but at the time those versions were named with a 2-digit number representing the year.

From the legacy list: https://support.zemax.com/hc/en-us/articles/1500005577342-OpticStudio-Legacy-Version-System-Requirements.

I’d try 16 as 16.5 might have been released latter that year. Otherwise, 15.5 SP3 (released in 2015).

Also, just in case…

Take care,

 

David