This article asserts that the earliest photographic image was taken in 1826. In fact, the earliest photographic image may date to much earlier. Using silver nitrate on linen (1992) and later silver sulfate (1994), Nicholas P.L. Allen was able to reproduce, in large part, the unique visual and chemical properties of the Shroud of Turin. The best one can say is that the 1826 photograph is possibly the earliest.

Patrick Gillespie
South Strafford, Vt.