INFOCUS
Regular readers will know about my love of lenses and all the physics, chemistry and mechanical engineering that goes into their designs. It really came about as a spin-off from my camera collecting – specifically 35mm SLRs – because often a body would come with an interesting lens. Many were, of course, classic primes from the camera maker, but there have also been plenty of third-party curiosities from brands now long gone.
In the past, these were mostly destined to sit
