Calculating image size

[Madge]

I am very new to all this, so sorry if this is a daft question:

I would like to calculate the image size thrown by a particular projector at a particular distance. Is there a way of doing this, or alternatively is there some sort of calculator out there somewhere, or is it adjustable with the lens?

E.g. Sharp XV-Z7000 Projection size 40" to 250" (from Sharp site) - but at what distances?

Thanks for any help!

 

[Griggsy]

Hi Madge,

Check out http://www.projectorcentral.com this site includes a calculator for projector throw distances which you may find useful.

Regards,