Yep, you've got it. Elements don't just separate from each other. The
rear aspheric element is a composite made from a ground glass portion
and a molded optical glass portion, it's this element that breaks down
and separates. Too bad as otherwise this is a wonderful lens. I
understand that Pentax is now able to repair these but I haven't gotten
around to sending my sample in.
David J Brooks wrote:
> Is this the lens that seemed to fall apart.
>
> There was talk last year here, about a lens in this more or less focal
> lenght, that was a good performer, but the elements tended to seperate.
>
> Was it this one.?? Or another.
>
> Actually, comments on this lens would be appreciated.
>
> Still trying to determine my Christmas presents to my self. Three
> primes or a couple o' zooms.
>
> Dave
>
> Equine Photography in York Region
>
>
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