--- ray/doc/man/man1/pfilt.1	2003/03/11 19:20:21	1.1
+++ ray/doc/man/man1/pfilt.1	2010/10/06 03:45:29	1.5
@@ -1,4 +1,4 @@
-.\" RCSid "$Id"
+.\" RCSid "$Id: pfilt.1,v 1.5 2010/10/06 03:45:29 greg Exp $"
 .TH PFILT 1 11/8/96 RADIANCE
 .SH NAME
 pfilt - filter a RADIANCE picture
@@ -69,7 +69,7 @@ Multiple exposure options have a cumulative effect.
 Color-balance the image as if it were illuminated by fixtures of
 the given type.
 The specification must match a pattern listed in the lamp
-lookup table (see the -f option below).
+lookup table (see the \-f option below).
 .TP
 .BR -f \ lampdat
 Use the specified lamp lookup table rather than the default (lamp.tab).
@@ -105,7 +105,7 @@ of any given output pixel.
 This option may be used to mitigate the problems associated with
 inadequate image sampling, at the expense of a slightly blurred
 image.
-The fraction given should not exceed the output picture dimensions
+The fraction given should not be less than the output picture dimensions
 over the input picture dimensions (x_o*y_o/x_i/y_i), or blurring
 will occur over the entire image.
 This option implies the
@@ -140,7 +140,7 @@ are not used in setting the exposure.
 .SH ENVIRONMENT
 RAYPATH		directories to search for lamp lookup table
 .SH FILES
-/usr/tmp/rt??????
+/tmp/rt??????
 .SH AUTHOR
 Greg Ward
 .SH "SEE ALSO"