filter factor for Leitz GGr green filter

Discussion in 'B&W: Film, Paper, Chemistry' started by ymc226, Oct 11, 2011.

  1. ymc226

    ymc226 Member

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    Since they don't make green Series VIII filters new anymore, I found a used Leitz GGr green filter.

    Does anyone know if I should expose 1 or 1.5 more stops as a general starting point?
     
  2. lacavol

    lacavol Member

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    The filter factor for an X1 (#11) filter is 4X or 2 stops. A green B (#58) filter has a filter factor of 5-6X or 2 1/3 to 2 1/2 stops. This is with Pan film. If it's yellow green I would start at 4X or 2 stops, maybe even on the other greens too.