What the company or idea is
Kodak is an American public company rooted in film photography, founded in 1892 by George Eastman and Henry A. Strong to develop a roll-film camera.
How it actually makes money
Kodak made money from selling film rolls, not cameras. Eastman recognised early that recurring film sales would outpace one-time camera revenue. It supplied film to all camera manufacturers, turning rivals into customers.
What works
The 1888 Kodak camera worked because it was pre-loaded with 100 exposures and returned for processing — separating taking pictures from developing them. Demand overwhelmed supply by August 1888. Nitrocellulose film patents (1889) and open film supply to competitors cemented market control.
What does not
It did not sustain dominance beyond the film era. The brief covers only its founding and rise; no source mentions digital transition, decline, or bankruptcy.
What to take from it
A successful business model need not invent the core technology — it can win by controlling the consumable, standardising access, and decoupling use from expertise.
Is it worth your time
Yes — as a case study in how a business model built on consumables can dominate an industry for decades, then fail to adapt when the consumable disappears.