If you’re having a problem, we’d like to help. Here are a few resources that may help you find an answer to your question.


Licensing is a big topic. You can read more about activation codes, nodelocked and floating licenses, license servers and the structure of license keys on our dedicated license page. Read more...

Transferring licenses

If your computer has been stolen or is broken and you are unable to run HDR Light Studio, you are entitled to transfer your license key to another computer. You are permitted to do this once per year, and no more. Read more...

Activating a Floating License

If you have an rlm license server up and running and know how to install a floating license, click here to generate your floating license key from your activation code. If you’re not sure what you’re doing, follow this step-by-step guide to getting your floating license to work.

User Guide

Problems using the software?

Have a read of our Online User Guide or PDF User Guide. This will explain how to install, license and use the software to light models. It also covers getting your connections to work.


If you have already purchased HDR Light Studio or any of the connections and want to download the latest version of the software please visit the downloads page. You will need to log in to download any software.

FAQs For Current Release

Do you have any Prices Lists I can download?

Yes, here are the links:
HDR Light Studio - US Dollars Price List PDF
HDR Light Studio - EURO Price List PDF
HDR Light Studio - GBP Price List PDF

How do I renew my HDR Light Studio Subscription or Maintenance?

We have produced comprehensive a blog article explaining the process for Subscription and Maintenance Renewals:

Why is HDR Light Studio 5 is crashing when I try to open or save a file (I have a Dell Computer)?

Some Dell Computers have pre-installed a 'Dell Backup and Recovery Solution'. This Dell software has a fault that can cause other applications that use QT for their GUI (like HDR Light Studio and many other apps) to crash. Please disable or uninstall this Dell Backup and Recovery Solution shell extension to prevent HDR Light Studio 5 from crashing when trying to open or save a files.

When I use my activation code I get an error saying 'There is a problem with your activation code... This code was redeemed on...’

Activation codes for HDR Light Studio can only be used once. The activation code provides a seamless process for generating and installing unique license key files for your computer for the purchased software. The error message means that our system is showing this activation code has already been used.

If you are re-installing HDR Light Studio on the same computer, you can retrieve your existing license files by logging into your account at and go to the 'My Activation Codes' page. Find the activation code for your product, and click on the ‘Download’ link in the Licenses column. This will download all the licenses associated with that activation code into a zip file. The zip file also contains instructions on how to install the license files.

If you want to install HDR Light Studio on to a new computer, you will need to login to your account at and go to the License Transfer page:
Here you will enter your current activation code, and a new activation code will be provided to generate new licenses for the new computer. You can use this feature once per year.

I am running HDR Light Studio on Mac OS X. I have a valid license but the application shows the red unlicensed watermark. There is an error message that says: The host [] is currently using this license.

This is due to a conflict between our licensing that prevents remote terminal use and Apple's "Back to My Mac" feature which enables this functionality. Currently the only solution is to switch off the "Back to My Mac" feature while running HDR Light Studio. To do this, go to System Preferences > iCloud and uncheck the box next to ‘Back to My Mac'

Can I freely move my node locked license from one computer to another?

You are allowed to transfer a nodelocked license once per year. You might need to do this if you get a new computer or you wish to use your transfer to license an additional secondary computer. Transferring your nodelocked license is simple, and can be done instantly through our website. Login to your account and go to the License Transfer page:

I am a freelancer and I want to use HDR Light Studio 5 when I am at my client's office, using their computer, how can I do this?

If you choose a floating license, you can run the floating license server software on your laptop to serve it to across the network to other computers where you are working.

FAQs For Previous Versions

How do I relicense my HDR Light Studio 4 software?

You can still use the legacy web store to relicense your HDR Light Studio 4 software. Visit and use the 'My Account' link (top right), to login to your account. Go to the 'Purchased Products' section, and delete the User Key for the product you would like to relicense. Now follow the instructions on this page to get a new license:

Where can I find Help web pages for my HDR Light Studio 4 software?

HDR Light Studio 4 help files are still available here:

Contact Us

Need to get in touch? Please use our contact form giving as much information as possible regarding the problem.