Archived posting to the Leica Users Group, 1997/07/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Jacques Bilinski wrote:
<Contax recomends that the user 'rough focus' first on lenses with floati=
ng
<elements
<(and probably many zooms, and other lenses that are focused by moving on=
ly
<groups of elements).
=
<I'm not an optical expert but I imagine that once Leica and Contax have
<decided to go with the 'moving film plane' method of autofocus, they wil=
l
<take this into account as a design parameter when designing new lenses,
<likewise other manufactures can probably design lenses in which the ima=
ge
<degradation caused by the small amount of play in the lenses is minimize=
d.
=
Then whe will have image degradation with :
15mm/3,5
24mm/2,8
28mm/2,8
35mm/1,4
100mm/2,8 Apo
Etc...
Do you think that Leica will accept such a a degradation ????
Lucien
BELGIUM