FrankS
Registered User
Let's use some arbitrary numbers to illustrate the concept. Let's just say that a print made by split printing with a 00 filter for 10 sec and a #5 filter for 10 seconds, exactly matches a print made by a single exposure of (say) 15 sec with a #3 filter.
But consider the possibility that a different, better result can be had with a 10 sec exposure with the 00 filter and a 15 sec exposure with the #5 filter. What single exposure with a single middle contrast filter could match that result.
I will just have to try this for myself.
But consider the possibility that a different, better result can be had with a 10 sec exposure with the 00 filter and a 15 sec exposure with the #5 filter. What single exposure with a single middle contrast filter could match that result.
I will just have to try this for myself.
Roger Hicks
Veteran
Dear Frank,
Sorry: you have to assume continuously variable dial-in filters. I was not thinking of discrete filters. Yes, the only way to get intermediate grades with discrete filters is sequential exposure, so that, for example, you give 10 seconds each through a 2-1/2 and a 3 to get a 2-3/4.
Cheers,
R.