Archived posting to the Leica Users Group, 1997/07/27
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On 27 Jul 97 at 0:11, Joe Berenbaum wrote:
> At 21:47 26/07/97 +0000, you wrote:
>
> >I might have asked this before, but don't think I saw a confirmation:
> >Does the 70-180 still need focus correction for infrared film, or is
> >it a true APO in this respect too, just like all other Leica APO primes?
> >Does it show a red dot on the DOF scale, or is this mentioned in the
> >manual?
> >Willem-Jan Markerink
>
> The presence or otherwise of the red dot may not mean much. Leica hasn't
> been putting the red dot or any other infrared focusing correction mark on
> its lenses for a long time- regardlesss of whether they were Apos or not. I
> think they consider them to be somewhat misleading since they are only
> really accurate for infinity.
Yep, I know, but in that case it should be mentioned in the lens manual,
right?
- --
Bye,
Willem-Jan Markerink
The desire to understand
is sometimes far less intelligent than
the inability to understand
<w.j.markerink@a1.nl>
[note: 'a-one' & 'en-el'!]