Re: Polarizing filter on M6 (?)

[edwardk9@umcc.umcc.umich.edu (Edward Kowaleski)]

Leitz made at least two polarizing filters that could be used 
successfully on M series cameras.  One was a 39mm thread that had an outer 
ring with reference number engraved.  The filter was marked  "5cm 
Summicron P" implying that if you were to use it on a 35mm it might 
vignette.  I have used it successfully on the 50mm Summicron and 90mm 
Tele-Elmarit.  

The idea was to view the scene 
through the filer rotating the filter until you achieved the effect you 
wanted, note the reference number on top when you achieved the desired 
orientation, screw the filter into the camera and then rotate the ring 
with the refernce numbers until the refernce number is at the same 
orientation as when you looked through it.  Another filter was a snap on 
swing out affair.  You would clamp the filter on the lens and then swing 
the front element 180 degrees so it overlaps the viewer.  Rotate the 
filter while looking through the viewer until you achieve the effect 
desired and then swing the filer back to the mount.  Both systems work 
well but I prefer the rotating lens mount. 

An old Leica Catalogue I have showed a catalogue number for the swing out 
mount as 13396 and the engraved mount as 13356.  I have both filters and 
neither has the catalogue number engraved on the mount.  Apparently these 
filters will work successfully with any E-39 front end; Leitz also showed 
a 13360 (engraved mount) and 13394 (swing out) for E-41 series as well as 
a engraved mount for the E-43 series (13351).> > Hallo all Leica users, > 
> I want to ask if somebody is using polarizing filter on M6 ? In the
> "Handbook ofthe Leica system" on page 5-19 is mentioned Polarizing filter
> under order No: 13 352 (A 42) for E 39 screw-in filter size. In the J.
> Eastland book "Compendium of the M System" on page 177 is written that this
> filter is in special lens hood for M 50/2, M 90/2.8 and M 135/4 lenses.
>

Hope this helps.  edwardk9@umcc.umich.edu
>