My main interest is in these now forgotton PRAKTICAR lenses, for collection, for taking photos
by these lenses, and for preserving the precious Carl Zeiss Jena PB-lenses in good condition.

There are three nice points in those lenses, the first is that they have almost same colour rendition
across except Macro-Prakticar 55mm which has less contrast than the others, the second is that
the most of lenses have very short minimum focusing distance, and the third is that they have
uniformly very small distortion among my personal lens collection. Those last two features are
the reasons I love them the most.