[LargeFormat] DIY Focusing Cloth

[Verna Knapp]

I bought a black "bath sheet" sized towel. It works great. Lets air 
through so it doesn't get as hot. Heavy enough to stay in place on its 
own. And good for mopping wetness off things as well. A Gray Card 
colored bath sheet sized towel would work really well...or one that was 
some other color but the same brightness as a gray card. I haven't found 
a good match yet, but I haven't tried all that hard. The gray towel I do 
have is a good dark cloth, though.

Verna