Difference between revisions of "Series filters"
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| − | '''Series filters''' are an older type of lens filter made in several different sizes or ''series''. Many cameras and lenses from the 1930s through the late 1970 use Series Filters. These glass or optical resin filters are round usually in a metal mount distinguished by the absence of threads. Series Filters were an early attempt at standardization where a camera user could use one size of filter on similar sized lens from different manufacturers. | + | '''Series filters''' are an older type of lens [[filter]] made in several different sizes or ''series''. Many cameras and lenses from the 1930s through the late 1970 use Series Filters. These glass or optical resin filters are round usually in a metal mount distinguished by the absence of [[fo;ter thread|threads]]. Series Filters were an early attempt at standardization where a camera user could use one size of filter on similar sized lens from different manufacturers. |
| − | The filter is attached to the lens between two thread rings or a two-part lens hood to hold a series filter in place. Adapters were used to fit larger series-sized filter to lenses of smaller | + | The filter is attached to the lens between two thread rings or a two-part [[lens hood]] to hold a series filter in place. Adapters were used to fit larger series-sized filter to lenses of smaller diameter. This advantageous aspect of series sized filters has been replaced by step-up and step-down rings. |
| − | The sizes in the series filters are identified by a number or by the diameter of the filter in | + | The sizes in the series filters are identified by a number or by the diameter of the filter in millimetres (such as series 63 or 93). The number is usually in Roman numerals for integers and in Arabic numerals for half sizes. The series number is often stamped into the mount on their circumference. The progression of the integer sizes is in imperial <!-- ? just said the diameter in mm; what does this mean ?? --AWCam 25/6/09 -->. |
The diameter of the filter for each series is: | The diameter of the filter for each series is: | ||
:{|border="2" style="border-collapse: collapse;" | :{|border="2" style="border-collapse: collapse;" | ||
| − | ! Series !! Diameter (") !! Diameter (mm) | + | |-bgcolor="#CCCCCC" |
| + | ! '''Series''' !! '''Diameter (")''' !! '''Diameter (mm)''' | ||
|- | |- | ||
| IV || 13/16 || 20.6 | | IV || 13/16 || 20.6 | ||
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=== References === | === References === | ||
| − | Warren, Bruce, 2001, ''Photography'', Thomson Delmar Learning, ISBN 0766817776. | + | * Warren, Bruce, 2001, ''Photography'', Thomson Delmar Learning, ISBN 0766817776. |
* [http://en.wikipedia.org/wiki/Filter_(photography)#Series_filters Filter_(photography)] at [http://en.wikipedia.org/ Wikipedia], this page incorporates material from the Wikipedia page on Oct 2, 2006 | * [http://en.wikipedia.org/wiki/Filter_(photography)#Series_filters Filter_(photography)] at [http://en.wikipedia.org/ Wikipedia], this page incorporates material from the Wikipedia page on Oct 2, 2006 | ||
* [http://www.srbfilm.co.uk/pdffulllist.pdf SRB Price List] at [http://www.srbfilm.co.uk SRB Film Services] | * [http://www.srbfilm.co.uk/pdffulllist.pdf SRB Price List] at [http://www.srbfilm.co.uk SRB Film Services] | ||
Revision as of 22:06, 25 June 2009
Series filters are an older type of lens filter made in several different sizes or series. Many cameras and lenses from the 1930s through the late 1970 use Series Filters. These glass or optical resin filters are round usually in a metal mount distinguished by the absence of threads. Series Filters were an early attempt at standardization where a camera user could use one size of filter on similar sized lens from different manufacturers.
The filter is attached to the lens between two thread rings or a two-part lens hood to hold a series filter in place. Adapters were used to fit larger series-sized filter to lenses of smaller diameter. This advantageous aspect of series sized filters has been replaced by step-up and step-down rings.
The sizes in the series filters are identified by a number or by the diameter of the filter in millimetres (such as series 63 or 93). The number is usually in Roman numerals for integers and in Arabic numerals for half sizes. The series number is often stamped into the mount on their circumference. The progression of the integer sizes is in imperial .
The diameter of the filter for each series is:
Series Diameter (") Diameter (mm) IV 13/16 20.6 4.5 ~ 25.5 V 1 3/16 30.2 5.5 ~ 35.9 VI 1 5/8 41.3 VII 2 50.8 7.5 ~ 57.0 VIII 2 1/2 63.5 IX 3 1/4 82.6 X 4 1/2 114
References
- Warren, Bruce, 2001, Photography, Thomson Delmar Learning, ISBN 0766817776.
- Filter_(photography) at Wikipedia, this page incorporates material from the Wikipedia page on Oct 2, 2006
