August
2001
Paillard Bolex series 4.5 filter
Series filters are glass
or plastic mounted in a metal or plastic rim. There is no screw thread
or other mounting; instead, the filter is designed to be held in place
by a retaining ring. This retaining ring would either be part of the
lens or be part of a lens hood/filter holder.
Series
filters are usually referred to using Roman numerals
(except Series 4.5).
|
Series
Number
|
Diameter,
mm.
|
Rim Thickness,
mm.
|
|
IV (4)
|
20.8
|
4.06
|
|
4.5
|
25.4
|
-
|
|
V (5)
|
30
|
4.31
|
|
VI (6)
|
41.3
|
4.82
|
|
VII (7)
|
50.8
|
5.33
|
|
VIII (8)
|
63.5
|
5.58
|
|
IX (9)
|
88.9
|
5.58
|
More cine cameras use
series filters than still cameras but Canon, Leitz and
Nikon have lenses for their still cameras which take
series filters
Lenses which take series
filters include some of the lenses made by Angenieux,
Kern, Schnieder, Som Berthiot and Taylor
Hobson.
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