the strict sense of the term. Indistinctness of thecontours toward the borders of the field of view arises as a rule, from unequalmagnification of the different zones of the objective; color bands in theperipheral portion (iwith good color correction in the middle) are caused byunequal… … l.blO Carl Zeiss Apertomlter huia.
Microscopy
Internet Archive · Public Domain Mark 1.0. Free to use for anything.