[nikonf4] Re: SMC Takumar
- From: Koichi Mac <nikonf3tmd4@xxxxxxx>
- To: nikonf4@xxxxxxxxxxxxx
- Date: Sun, 21 Nov 2010 00:15:04 -0800
Yeah……I think I remember reading about the earlier invention. It
sounds like multi-coating became economically feasible after with the joint
venture of Asahi and Zeiss in the early 70s.
Koichi Yasutani - a.k.a. Steve + MP
Lakewood, WA U.S.A.
2010 / 11 / 21 00:15 PST
On Nov 20, 2010, at 2241 , Eric Welch wrote:
> Actually, multicoating was invented in 1938 at GE, but not widely used until
> the 70s. But was it Pentax? Or Zeiss? Or both?
>
> http://gabriel.mp3-tech.org/blog/index.php?entry=entry090203-153355
>
> On Nov 20, 2010, at 6:33 PM, Koichi Mac wrote:
>
>> Huh! That information is from the very company that invented multi-coating
>> in 1970. Am sure they saw other vendors catching up and forgot to fine-tune
>> the finesse part of multi-coating afterwards. :-D
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