FF Ernestine comes in four weights, each featuring a Roman and an Italic version – so eight styles altogether. The four matching Armenian styles are included inside the fonts (the Armenian component is identical between a matching pair of Roman & Italic, since there is no Italic for Armenian).
We have spaced the four weights rather closely together. This gives you as a typographer more options: If you need to highlight something inside a block of text, for instance, you can choose between very subtle, or stronger emphasis. For subtle emphasis use adjacent weights – like for instance the Demibold inside a body of Regular. For stronger contrast skip one weight, and combine the Bold with the Regular, or the Demibold with the Light.
All styles of Ernestine have been specifically designed. Thus every one of them has a bit of its own character, rather than just being a mathematical variation. We consider this a feature, not a bug!