Johannes Kepler
Johannes Kepler (1571-1630), scholar and
astronomer wrote about observing the sun
using a room camera similar to the one
described by Porta. Kepler described this event
in his first published work on astronomy, “Ad
Vitellionem Paralipomena” (1604). The first
occurrence of the name "camera obscura" is
found in this work.
Kepler's portable camera obscura (tent) is
described in a paper “Reliquiae Wottonianae”
(1651). This is one of the earliest English
language descriptions given to the camera
Portable 'Tent' Camera Obscura, Johannes