Karl It sounds similar to stuff available for astronomers except there they KNOW stars are really point sources. "Unshake is the property of M.D. Cahill, and is offered for private use only. By downloading Unshake, I am agreeing not to attempt to gain financially by its acquisation or use. " Mmm ... so if a photographer increases the vaulue of a picture by unshaking it .... Bob __________________________________________________________________________ Freeserve AnyTime - Go online whenever you want for just £6.99 a month for your first 3 months, that's HALF PRICE! And then it's just £13.99 a month after that. For more information visit http://www.freeserve.com/time/ or call free on 0800 970 8890