www.photodo.com
They've got MTF tests and some specs. The lense hood that the 20-35 2.8L
uses is EW-75. It uses a 72mm, NOT 77mm, filter size. Personally, I
believe it's sharper than the 17-35 that replaced it. Although the 20-35
lacks Full-Time Manual Focusing, focusing is still pretty damn fast without
the USM (it's a wide angle for crying out loud, you should be manual
focusing!). To me, the 17 is too wide and 20's just about right.
Yen
John Lovada Wrote:
> > Where can I obtain specific technical specs for the discontinued EF
> > 20-35mm f2.8 L lens. I am specifically looking for a lens diagram. How
> > many aspherical, UD, high index of refraction elements, etc. What is
the
> > part number for the matching petal hood? I notice that the Canon museum
> > seems to leave out a lot of info on discontinued lenses.
> >
> > Thanks,
> > John Lovda
> > Canton, OH
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