Toronto. As mentioned in recent posts, our late editor Bob Lansdale was able to convince exchange members to submit articles for reprint as we celebrated our 25th anniversary of the journal in 1999.
John Naslanic, editor of the MiPHS’ Photogram, offered this article (and illustrations) on artificial illumination used to allow photographs to be taken under poor light conditions in the days of ultra slow media and modest aperture lenses.
John began the article, “‘No I might need it.’ That is what MiPHS member Davis B. Hilmer said when I tried to buy one of his powder flashguns. This was in 1972 and Davis was 75 years old then. He was selling off some of his equipment at 65 Canfield St. in Detroit, where he had operated as a commercial photographer for fifty years.
“His client list included a number of Detroit companies, including J.L. Hudson. Davis knew that flash powder produced a tremendous amount of light for only a few pennies, and could light up a banquet hall, or even a large outdoor arena. Flashbulbs cost a heck of a lot more and weren’t nearly as effective.
“For the first 25 years or so, photography depended almost entirely on the sun, or the daylight coming in a north skylight. No photos could be taken at night or on dark wintry days. With new processes, the metal magnesium was produced cheaply, and magnesium ribbon could be used to light up interiors, but it burned too slowly for portrait work.
“The magnesium flash-lamp was devised. Pure magnesium powder was held in a reservoir and blown through an alcohol flame, which resulted in a bright flash for about 1/10th of a second, which could be used to take portraits. One drawback was the billow of white smoke of magnesium oxide that formed and clouded the studio.
“Another unmentioned drawback was that when magnesium oxide reacted with water, it becomes magnesium hydroxide – the chemical name for milk of magnesia, a rather aggressive laxative. (A drink of orange juice, vodka and milk of magnesia is called a Philips screwdriver.)” …
Members read this and the other articles in the 25-1 pdf file on the free members-only DVD/memory stick. The disk/stick contains pdf versions of the first 40 volumes of our journal. See MEMBERSHIP above or at right to join. Email any questions to Lilianne at member@phsc.ca. Collectors may find old flash photos, or powders, or flash apparatus at our 2025 events. Up next is our fall fair on October 19th, 2025 at Trident Hall on Evans near Islington. See PHSC News 25-7. A poster with details will be pinned to this site a few weeks before the fair.

















