Ernemann Heag IV c.1925-1926
This was a typical folding plate camera from the early twentieth century. Photographers would fold down the base, pull out the lens by extending the bellows, and insert a photosensitized glass plate.
The Ernemann Heag IV also had a Doppel-Anastigmat lens—a new lens that corrected aberrations such as astigmatism—and a Chronos shutter created specifically for Ernemann cameras.