JanPol Lens and DIY Noblex 120 Film Camera

[Mustafa Umut Sarac]

I am thinking a DIY swing camera with janpol lens on 120 film like noblex or widelux.
-Does Janpol covers 6 cms long slit?
-Is there any advantage to use janpol color filters as bw yellow , red or green , orange filters ?

 

[mshchem]

Janpol, I remember these things from 50 years ago. I really don't know how they worked. If the filters are good I would think it would cover??? Are these dichroic filters? Never tried this lens.