LensFactor

I have used this application multiple times to calculate lens throw distances based on screen size and to calculate screen size possibilities based on distance. It works very well. It saves a lot of time and guessing for those of us that have a math disability. An invaluable tool for projection calculations.

I love this app and use it all the time. The only thing I'd love to se to put this app over the top would be a library where I could store all my lenses with their related zoom ranges. Maybe even also a library for my screen setups. I find myself always having to look up my various lens specs. A library would be fantastic!

Works great, can get focal distances when setting up a new projector, verify screen sizes when ordering a new screen, determine screen size limitations with various lens ratios, both fixed and zoom. A great tool for an AV installer of projection equipment.