Having heard how great the 808 is I'm now considering an upgrade from my VW10HT. However I have a couple of really fundamental questions apologies if there obvious but I'm new to the CRT thing: 1) Do the 808's lenses/ controls have a zoom function? i.e can you alter the size of the projected image without moving the projector - my VW10HT can be mounted anywhere within a 2'6" range and still achieve the desired screen size - in other words is the screen to projector distance an exact science? 2) Following on from the above - I have a VUTECH 16:9 screen - 8 feet wide - 1.3 gain is this a suitable screen for CRT ????and..... how far away from the screen will the 808 have to be to fill it????? I've got a finite amount of space. Many thanks.