Hello! I thought I'd tap the resources of APUG.ORG once more regarding this really big camera. My dark cloth which I used on my 8x10 is too small to be much use on the 12x20. I was wondering what size dark cloths other 12x20 users find workable. Since this will be a home made project, I'd rather be too big than too small, but I can easily imagine the dimensions quickly approaching ridiculous and unmanageable proportions if left to my own devices. Any recommendations??