Joseph D. Jachna, American, 1935- Simple, formal abstraction and technical precision characterize the black-and-white photography of Joseph David Jachna, who studied in Chicago with both <a href="https://findartvalue.com/artist/aaron-siskind">Aaron Siskind</a> and <a href="https://findartvalue.com/artist/harry-callahan">Harry Callahan</a> during their tenure at the Institute of Design, Illinois I