If you’ve spent any time in either the studio or the field fussing with lighting, you know how problematic finding good lighting set-ups can be. And how much harder remembering good solutions or explaining set-ups to assistants or even models can be. But, these days, thanks to a free online service, you can quickly and easily diagram out your lighting solutions. And soon, you’ll be able to create an account to save and share your set-ups, attach images of the results, add notes, and more.

As mentioned, it’s free for most circumstances. Per their site:

The Online Lighting Diagram Creator is free of charge for non-commercial projects and for professional photographer websites, photography blogs, photography forums as long as the OLDC services and products are accessible by all visitors at no charge. All free of charge use must include the footer with the credits.

For books and DVD illustration, a donation of at least USD 10 is required.

If you are giving [sic] paid for tuitions, then a donation of USD 50 should cover for a year.

So, if you need to diagram out some lighting set-ups, this is a handy and easy tool. It took me maybe a minute to make the diagram above (which I used once while, I kid you not, shooting zombie pin-ups). And, did we mention free?