Index: /trunk/psModules/src/camera/pmFPARead.c
===================================================================
--- /trunk/psModules/src/camera/pmFPARead.c	(revision 17081)
+++ /trunk/psModules/src/camera/pmFPARead.c	(revision 17082)
@@ -474,8 +474,14 @@
         readout->row0 = next;
         readout->col0 = trimsec->x0;
+        if (numScans == 0) {
+            numScans = trimsec->y1 - trimsec->y0;
+        }
     } else {
         // Reading cols
         readout->col0 = next;
         readout->row0 = trimsec->y0;
+        if (numScans == 0) {
+            numScans = trimsec->x1 - trimsec->x0;
+        }
     }
     int upper = next + numScans + overlap;        // Upper limit to next section