Schneider Optics PC-SUPER-ANGULON 28 mm f/2.8 - Manual (Page 14)

¡ Filters, Lens Hood and Camera Mounts
Only the oversized B+W WA filters of the size 67 EW can be used with
the SCHNEIDER PC-SUPER-ANGULON 28 mm f/2 .8 due to the extreme-
ly large image angle utilized at maximum shift up to 93 .4° . The following
table shows the order numbers of the most popular filter types – further
types are available . The two B+W polarization filters shown there (linear
and circular) have a special rotary mount and are dimensioned such that
they do not produce vignetting even at maximum parallel shift of the lens .
An additional lens hood can, however, unfortunately not be used in combi-
nation with these polarization filters .
Furthermore, a special lens hood with a filter mount is also available which
does not produce vignetting at maximum shift . The filter plates of 74 mm
diameter which can be inserted there are held in this specal lens hood by
an adapter ring belonging to the lens hood .
The following table also shows the order numbers of the camera mounts
with which the lens can be fitted to match the new camera bayonet or
thread if the camera system is changed .
The PC-SUPER-ANGULON 28 mm f/2 .8 with Leica R bayonet mount is
only available through the camera manufacturer’s distribution channel .