[Leica] Slim 486 Filter; Tri-Elmar; Lens Caps; Coding

[henningw at archiphoto.com (Henning Wulff)]

At 12:39 PM -0700 3/13/07, Robert Rose wrote:
>I just got a B+W 489, and here is something I never thought about:
>
>The filter is a SLIM, which means that you need to use a push on cap, and
>that the Leica snap caps won't work.  The filter comes with the classic
>Schneider Krueznach Optik push on cap, and this actually works really well
>for a Tri-Elmar.  The metal lens hood can be slipped over the filter, and
>can be stored in reverse with the Schneider cap on.  I could not use the
>Leica push on cap in this way, since the Leica cap is too deep.
>
>So, for the Tri-Elmar, the SLIM filter is very good thing.  The slip on cap
>also seems to work fine for the the other lenses, in fact I like it better
>than the snap cap over a filter.  The 35mm and 28mm lenses have that hood
>thing, so you don't need a separate cap.
>
>I bet the Schneider replacement cap costs less than a Leica cap, too!
>
>So far I don't see any magenta fringing on the Tri-Elmar, so I am not sure
>there is a reason to rush out and get it coded.
>
>Cheers,
>Bob Rose

Shoot an evenly lit, evenly coloured neutral surface at 28mm. You 
won't see magenta fringing, but you will see cyan corners. In 
realistic terms, cloudy skies will have the cyan corners.

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    *            Henning J. Wulff
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