Are not almost all modern lenses (i.e. ones that can be purchased brand new)
multi-coated? Is there a discernible difference between a coating used on a
Pentax lens vs. Nikon vs. Canon vs. Minolta? Since third party lens mfrs.
like Tamron make lenses for the big names, is SMC a big deal anymore when
buying a new lens?
Tom C
>
> That's a common misconception. Zeiss pioneered lens coating and marked
> many of their single-coated lenses with a red T . Many firms experimented
> with multicoating, but had problems getting the layers to adhere to one
> another and to be tough enough to withstand cleaning.
>
> Zeiss people will openly tell you that they got the basic multicoating
> process from Pentax, even though they modified it to meet their
requirements
> before calling it T*.
>
> Zeiss people say T* and HFT are identical, Rollei people insist that they
> are not.
>
> Bob
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