diff --git a/python/pipeline/shared.py b/python/pipeline/shared.py
index e90f4282..8b4945f1 100644
--- a/python/pipeline/shared.py
+++ b/python/pipeline/shared.py
@@ -10,9 +10,9 @@
 @schema
 class Field(dj.Lookup):
     definition = """ # fields in mesoscope scans
-    field       : tinyint
+    field       : smallint
     """
-    contents = [[i] for i in range(1, 25)]
+    contents = [[i] for i in range(1, 150)]
 
 @schema
 class Channel(dj.Lookup):