jlw
Rangefinder camera pedant
I believe this persistent "rumor" simply results from wishful thinking.
Sure, Zeiss said that they designed their M lenses to be suitable either for film or digital use. In this day and age, why would you design a lens any other way?
"Designed for digital" often means nothing more than choosing the coating for the rear elements to reduce the risk of sensor bounce-back (re-reflection of light from the sensor, to the rear of the lens, and back to the sensor, causing halos and color fringing.)
Sure, Zeiss said that they designed their M lenses to be suitable either for film or digital use. In this day and age, why would you design a lens any other way?
"Designed for digital" often means nothing more than choosing the coating for the rear elements to reduce the risk of sensor bounce-back (re-reflection of light from the sensor, to the rear of the lens, and back to the sensor, causing halos and color fringing.)