I’m very happy to get this book “EF Lens Work III, The Eyes of EOS, Canon”. This book talking about EF lens concept, canon’s challenges of technology, Canon camera and lenses history, accessories, EF lens world and etc.


In the 1930s, the two best 35mm focal plane shutter cameras were made by Leica and Contax (Germany). In 1933, the Precision Engineering Research Laboratory (later changed to ” Canon”) was established a workshop for building high-quality 35mm cameras. Above is the first Japanese 35mm focal plane shutter camera – Kwanon. The Kwanon name itself originates in the Buddhist Goddess of Mercy, known as Kwanon in Japanese, and the logo pictured the thousand-armed Kwanon with the letters KWANON in the flames above her head. The first glimpse the world got of this new company was an advertisement in June 1934 issue of Asahi Camera, which even today remains on of Japan’s top photography magazines.

History of Canon Lenses. 1946, first lens to see the light of day was the Serenar 50mm f/3.5. Look at the shape of the lenses, very funny and small.

Today L Lenses, Long, big and heavy. Can you see the Canon Lenses transition?