Short version: Is it valid to assume Kodak's recommended times for Xtol at 1+1 will also be approximately correct for Legacy Pro EcoPro at 1+1? (EcoPro is an ascorbic acid based developer, similar to Xtol.)
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Legacy Pro gives development times for undiluted EcoPro <here> but does not give any times for EcoPro diluted 1+1. (or if they do, I can't find it)
Looking at Kodak's recommendations for Xtol <here> the times for undiluted Xtol seem to match the undiluted EcoPro times.
Looking at the Massive Development chart (MDC) for EcoPro at 1+1 for Kodak T-Max 400 (at EI 400) <here>, I see 9:15 at 20*C. And that is the same time Kodak gives for Xtol at 1+1.
But when I look up Ilford Delta 400 and EcoPro on the MDC <link>, it is showing 11:30 for EI 400, 1+1, 20*C - which is a full minute more than what Kodak is showing for that film in Xtol at 1+1.
Looking at the Freestyle chart <here> for Ilford Delta 400 and the EcoPro developer at 1+1, it shows the same 10:30 as does the Kodak Xtol chart. So that makes 10:30 the best two out of three, with the MDC being the odd man out.
I plan to try out several different films in EcoPro at 1+1, so if I can trust Kodak's times for Xtol at 1+1 it will save me the time of trying to find consensus among the various online resources. Obviously, these factory recommended times are only a starting point subject to testing and revision, but one must start somewhere.
Thank you.
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Legacy Pro gives development times for undiluted EcoPro <here> but does not give any times for EcoPro diluted 1+1. (or if they do, I can't find it)
Looking at Kodak's recommendations for Xtol <here> the times for undiluted Xtol seem to match the undiluted EcoPro times.
Looking at the Massive Development chart (MDC) for EcoPro at 1+1 for Kodak T-Max 400 (at EI 400) <here>, I see 9:15 at 20*C. And that is the same time Kodak gives for Xtol at 1+1.
But when I look up Ilford Delta 400 and EcoPro on the MDC <link>, it is showing 11:30 for EI 400, 1+1, 20*C - which is a full minute more than what Kodak is showing for that film in Xtol at 1+1.
Looking at the Freestyle chart <here> for Ilford Delta 400 and the EcoPro developer at 1+1, it shows the same 10:30 as does the Kodak Xtol chart. So that makes 10:30 the best two out of three, with the MDC being the odd man out.
I plan to try out several different films in EcoPro at 1+1, so if I can trust Kodak's times for Xtol at 1+1 it will save me the time of trying to find consensus among the various online resources. Obviously, these factory recommended times are only a starting point subject to testing and revision, but one must start somewhere.
Thank you.
