diff --git a/editions/tw5.com/tiddlers/filters/FilterOperator field.tid b/editions/tw5.com/tiddlers/filters/FilterOperator field.tid
index 130eb2247..95f1a4ca6 100644
--- a/editions/tw5.com/tiddlers/filters/FilterOperator field.tid	
+++ b/editions/tw5.com/tiddlers/filters/FilterOperator field.tid	
@@ -4,17 +4,12 @@ tags: filters commonfilters
 title: FilterOperator: field
 type: text/vnd.tiddlywiki
 
-The ''field'' filter operator filters the current list to leave only the first tiddler that has a distinct value for a specified date field.
+The ''field'' filter operator filters the current list according to whether a field matches a specified value.
 
-For example:
+The operand is the value to match, and the suffix is used to identify the field. For example:
 
 |!Filter String |!Description |
-|`[eachday[created]]` |Returns a list of the first tiddler created on each distinct day |
+|`[field:modifier[JeremyRuston]]` |Returns a list of the tiddlers created by `JeremyRuston |
+|`[modifier[JeremyRuston]]` |Returns a list of the tiddlers created by `JeremyRuston |
 
-The ''eachday'' operator can be used to group tiddlers. For example, the following wiki text creates a list of the number of tiddlers that were modified on each day:
-
-<$list filter="[!is[system]eachday[modified]!sort[modified]]">
-
-<$view field="modified" format="date" template="DD MMM YYYY"/>: <$count filter="[sameday{!!modified}]"/> modifications
-
-</$list>
+Note that if an unknown filter operator `[unknown[xxx]]` is encountered it is interpreted as `[field:unknown[xxx]]`.