I use my Powerphase FX with a B+W 486 IR cutoff filter.
The filter works very fine, but when shooting wideangle (Super Angulon 47XL) i get massive cyan color shift in the corners.
Are there color shifts with the Phase One AR1 filter as well when using wide angle lenses?
I think the AR1 Filter is a pretty old product - Are there some other (maybe better) options from Tiffen (Tiffen standard hot mirror) or Schott (BG 38, BG 39)?
i want to use the Powerphase FX for architecture photography, so i need a IR Filter, that works perfect with wide angle lenses.