Detrola Model K

Detrola model K, with Wollensak lens collapsed image by Rick Soloway (Image rights)

The Model K was a higher-spec model in Detrola's lineup of bakelite cameras for 3×4 cm images on 127 film. In 1940, the Model K was offered at a list price of USD $22.50, almost double that of the Model G. While it shared the extinction meter of the Model H, the selling point of the Model K was its color-corrected Wollensak 2-inch f/3.5 lens about 2/3rds of a stop faster than the f/4.5 lenses on the G and H models. This camera is also seen with the designation Model KW. The "W" was ostensibly appended to indicate the use of a Wollensak lens; however, the Model K (without a "W") also used Wollensak lenses.