Alan wrote: Does that mean they actually produced a small quantity of these products but hide them somewhere in the company? Would be cool if they just show them in the Pentax museum and gain some respect. I certainly want to see them knowing that they were capable of designing such products. They might even claimed to be the 1st to produce sealed USM products.
REPLY: I don't know what it means. It must mean finished lens designs and possibly prototypes. I have no idea if they used USM; probably not. I doubt it used the FA* clutch system though, as it would be complicated to weather seal. What is a fact is that Pentax could have been first with weather proofed lenses. P�l

