Focusing screen SD402

[fabrizio cicconi]

Hallo,
I bought a Phocusing screen SD402 Type A4 for to make architectural piscuters,
I asked to my dealer and He told me that it doesn't exist a separate mask...
I'have a P40+ and there is no the mask for that Back How can I do?

My best
Fabrizio

[Jon]

While not so common anymore, there is a mask available which can still be ordered:
http://www.phaseone.com/Search/Article. ... nguageid=1

Item number 40101903