Kodak moment

noun2

1. •
   (informal) A sentimental or charming moment worthy of capturing in a photograph.

   • ‘Don’t you ever stop? This is not going to be a Kodak moment, I promise you. It’s not going to be hugs and tears. There’s no place for a swelling violins sound track.’ — 1994
2. •
   (informal) The situation in which a business fails to foresee changes within its industry and drops from a market-dominant position to being a minor player or declares bankruptcy.

   • Platinum sector faces its Kodak moment in fuel cell technology [title] — 2015