January 7, 2016, Filed Under: PhotographyDavid Douglas Duncan at 100: A month of tributes to David Douglas Duncan in honor of his 100th birthday—Part 1 Internationally-renowned American photojournalist David Douglas Duncan celebrates his 100th birthday on January 23. For decades, Americans at home and abroad learned of world events as they unfolded before Duncan’s camera, first during his service as a combat photographer with
August 6, 2015, Filed Under: Conservation, PhotographyUn resultado positivo para un negativo en placa de vidrio Antes de la invención de materiales plásticos, el vidrio y el papel eran los materiales principales para producir negativos en blanco y negro. Las placas de vidrio con emulsión de gelatina fueron producidas desde finales del siglo diecinueve (XIX) hasta mediados del siglo veinte (XX). La transparencia del vidrio facilitó
August 6, 2015, Filed Under: Conservation, PhotographyA positive outcome for a glass plate negative Before the invention of plastics, glass and paper were used to produce black and white photographic negatives. Glass plates with gelatin emulsion were produced from the late- nineteenth century until the mid-twentieth century. The transparency of glass made the plates very
