Cokin
Cokin 49mm Extension Ring: Picture 1 thumbnail Cokin 49mm Extension Ring: Picture 2 thumbnail

Cokin 49mm Extension Ring

SKU: CKER49 MFR: R4949

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$9.77
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Cokin 49mm Extension Ring: Picture 1 regular $9.77

About Cokin 49mm Extension Ring

Some wide-angle and video zooms have a retractableactable lens assembly which means that the COKIN Filter Holder may inhibit the use of some focal lengths. To remedy this situation, use a protective screw-in filter (UV or SKY1A) and add one or several "extension rings" between the screw-in filter and the adaptor ring of the filter-holder.

Extension rings are also useful with some home video cameras which have elements obstructing the free rotation field of the filter-holder.

Q&A

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Questions about this item:

Tom G  What is the outside diameter and the overall thickness of this ring? I presume it is male to female.
Andrew R  Unfortunately the manufacturer specifies neither the outer diameter nor the thickness of this extension ring. It does feature male threads on one end (to fit a 49mm filter ring) and female threads on the other (to accept 49mm filter threads).
Shopper  How long is this ring ... i.e. how much extension?
RICHARD N  About 1/8 of an inch.
Shopper  How long is this ring ... i.e. how much extension?
RICHARD N  About 1/8 of an inch.
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