Archived posting to the Leica Users Group, 2000/03/02

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Subject: Re: [Leica] apo definitions
From: Mark Rabiner <mark@rabiner.cncoffice.com>
Date: Thu, 02 Mar 2000 08:45:51 -0800

"Henning J. Wulff" wrote:
> 
> At 9:28 PM -0800 3/1/00, Ken Iisaka wrote:
> 
> >Nikon is still one of few companies which is rather strict about how
> >they use certain terms.  Recall that Nikon stubbornly calls its close-up
> >lenses, Micro-Nikkors and Ultra-Micro-Nikkors.
> 
> They may be strict, but they are on their own here. No one else used
> 'micro' in in this fashion. Making up your own definitions against common
> usage does not count for much. Also, some literature (which of course was
> not necessarily written by Nikon) described the M Nikkor series as apo,
> which they were only in the broadest sense.
> 
>    *            Henning J. Wulff
But no APO on the lens barrel at least! My impression with the third party
lenses is they use APO to indicate you have to pay an extra hundred bucks to not
get a compleat optical piece of crud. But if having some of that "low
dispersion?" glass to justify this legally in most contries good for them I
guess they have good sources for better glass. Good for them!
Mark Rabiner