On 5/26/2016 2:02 PM, Mark Roberts wrote:
Stanley Halpin wrote:
However, as I recall the 28-70 had the reputation of being a very sharp lens
that had a fatal construction flaw; one of the lens elements would delaminate.
That was the 28-70 f/4.0 not the 2.8.
I can vouch for that, I had an early 28-70 f4.0 that did just that. It
appears that it was a composite molded plastic and glass aspherical
element that failed to hold together. The second copy that I acquired,
seems to be holding together, though it's construction is well
plastic-ey. Sadly the plastic fantastic FA zooms don't seem to wear
that well mechanically.
--
I don't want to achieve immortality through my work; I want to achieve
immortality through not dying.
-- Woody Allen
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