Re: Really dumb question about EPIs


"GTO" <gregor_o@xxxxxxxxxxxxxxx> wrote in message
news:NmkQg.6665$Ij.1033@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On a Nikon objective, E stands for economical design, such as E-Plan
rather than Plan. For Nikon, it usually means less correction for image
flatness.

On a Leitz objective, EF stands for flatter-field Achromat. It also
suggests that the correction for image flatness is less than the one for
lenses using the designation NPL or PL.

Gregor


Gregor, EF was explained to me by a Leitz dealer as meaning even field.
Now what that means scientificly beats me. But your right, they used it to
cover up that these were their good ole' achromats with a fancy name. Now
the NPL's were some of the best objectives ever made.

Thanks,

Kevin Cunningham
SMS

"Newshound" <newshound@xxxxxxxxxxxxxx> wrote in message
news:4ndispFa06v5U1@xxxxxxxxxxxxxxxxx
Does an "E" in an objective designation denote an EPI?





.