i think all of the following. it's not just Pentax.
Herb....
----- Original Message ----- From: "David Oswald" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, April 04, 2005 10:51 PM
Subject: Pentax's sudden infatuation with ED glass.
So the question is, what's going on here? I see a few possibilities:
* ED glass has suddenly become cheap enough to use in a broader range of lenses.
* ED glass has become necessary to produce acceptible results with DSLR's.
* ED glass has become enough of a recognized feature that using it pays dividends in improved lens sales.
* Pentax has become committed to producing better zooms than ever before, possibly to try to close the door on 3rd party lenses (much like SMC does).

