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Exposure times using d70 and IR 87c filter


thomas_k.

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Hi:

Does enybody has experience with use of regular non-modified d70 with 87c

infrared filter. I am using hoya RM72 filter now which passes some of the

visible light. My exposures times are 1-2 seconds at f11. How much longer do I

have to expose with 87c filter?

I am trying to decide if using 87c is possible for landscape, they are

expensive so I am asking before buying.

Thank you, Thomas.

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