Bob, so are you using a prism or just an array of mirrors? I was looking at your schematic - and before my head exploded, turned away - and now I am thoroughly confused. If you are using an array of mirrors (which is a great idea), then I can understand a little more.

BTW, what part of Australia are you from? I lived there for a spell.

I started off with simple mirrors to test the principle then bought in two prisms which do the same job as the four mirrors.

P+S Technik seem to have a bet each way according to their diagram and seem to use two mirrors and one prism.

Bob, which prism did you buy?

Are they free of colordistortion???

Was getting rid of the mirrors because it was too bulky or other reasons? Do the prisms end up doing the same job, but better?