I've succumbed and have purchased a
well-preserved Korona View whole plate
camera. I have two immediate questions
that I hope a reader might answer.

1. The camera came with only one film
holder. I just won an eBay auction (item
14026680856) for three Rittreck (Wista)
holders. Will they be compatible with
the Korona?

2. I have a 5x7 back from a 5x7 Deardorff.
I would like to have it made into a reducing
back for the Korona. It should be a fairly
simple bit of carpentry, but can anyone
recommend a shop for the work?

Many thanks in advance for your help.