I don't want it to be a disposable lens, I just want it to be a FAST lens!Yes, but that Is Harry. An idea of a disposable telephoto lens was meant to be appealing to a certain audience.
And modern plastics with 1.54 and 1.77 index of refractions ARE the way to go... giving us LIGHT WEIGHT AND FAST LENSES !!!
It means we CAN have that 95-800 mm Sigma Sports Zoom at f4.0 to f/5.6 that is LIGHTER and shorter than today's Sigma 150-to-600 mm sports zoom!
I'll pay DECENT MONEY for that ability!