Yesterday I contact printed an image on MGFB Classic Glossy @ 12.5 seconds with equivalent grade 2.7 using enlarger as the light source with the Multigrade 500 head.
Without changing the enlarger I contact printed the same image on Ilford MGFB Classic Matte.
To get roughly the same tonality and contrast I had to bump up my time to 18 seconds (+44%) and use more green filtering for an equivalent grade 2.2.
I ran another test strip on Glossy just to make sure it wasn't a developer issue.
Is that normal for those of you who use both papers? the glossy paper I have is a couple of years old but I doubt it gained speed.
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