My question relates to the ability of the lens to be tailored to a frame, where you may need a bit more inset than a regular fit. We do a fair amount of polarised and tinted freeform lenses, but find them quite restrictive in lens diameters.
When an inset gets beyond, say, 6 or 7 mm, we are usually told the lens will not cut out.
My understanding of freeform (and i refer to spherical front, DS on back) is that the lens is "customised" and that inset/decentration/prism (whatever you want to call it) should/can be cut into the back of the lens?
Am I wrong in this assumption? I know that there are restrictions, but the PD's or insets I am looking for are not, IMO, too much to ask for.
Please shed some light on this for me.