diff --git a/gopro_8:7/unfish_gopro_8:7.py b/gopro_8:7/unfish_gopro_8:7.py
index 9152e69..db39b4e 100644
--- a/gopro_8:7/unfish_gopro_8:7.py
+++ b/gopro_8:7/unfish_gopro_8:7.py
@@ -57,7 +57,7 @@ print("gopro  fov  : horizontal = %7.3f, vertical = %7.3f, diagonal = %7.3f (deg
     gopro_fov_vertical,
     gopro_fov_diagonal))
 
-print("\n--- rectilinear re-projection, preserving vertical fov ---\n")
+print("\n--- rectilinear re-projection ---\n")
 
 rectilinear_focal_length = lambda radius: radius * math.tan(math.radians(90.0 - equidistant_angle(radius)))
 
@@ -73,14 +73,14 @@ print("linear focal: horizontal = %7.3f, vertical = %7.3f, diagonal = %7.3f (mm)
 rectilinear_radius = lambda angle,  focal_length: focal_length * math.tan(math.radians(angle))
 rectilinear_angle  = lambda radius, focal_length: math.degrees(math.atan(radius / focal_length))
 
-preserved_fov_horizontal = 2.0 * rectilinear_angle(gopro_radius_horizontal, rectilinear_focal_length_vertical)
-preserved_fov_vertical   = 2.0 * rectilinear_angle(gopro_radius_vertical,   rectilinear_focal_length_vertical)
-preserved_fov_diagonal   = 2.0 * rectilinear_angle(gopro_radius_diagonal,   rectilinear_focal_length_vertical)
+rectilinear_fov_horizontal = 2.0 * rectilinear_angle(gopro_radius_horizontal, rectilinear_focal_length_vertical)
+rectilinear_fov_vertical   = 2.0 * rectilinear_angle(gopro_radius_vertical,   rectilinear_focal_length_vertical)
+rectilinear_fov_diagonal   = 2.0 * rectilinear_angle(gopro_radius_diagonal,   rectilinear_focal_length_vertical)
 
 print("linear fov  : horizontal = %7.3f, vertical = %7.3f, diagonal = %7.3f (deg)" % (
-    preserved_fov_horizontal,
-    preserved_fov_vertical,
-    preserved_fov_diagonal))
+    rectilinear_fov_horizontal,
+    rectilinear_fov_vertical,
+    rectilinear_fov_diagonal))
 
 print("\n--- shader parameters ---\n")
 
@@ -93,13 +93,14 @@ const float rectilinear_focal_length = %.6f;""" % (
     rectilinear_focal_length_vertical)
 )
 
-print("\n--- filter parameters 4K ---\n")
-
-width_scale = rectilinear_focal_length_vertical / rectilinear_focal_length_horizontal
-
-output_height = 2160
-output_width  = int(round((output_height / 7.0) * 8.0 * width_scale))
-
-print("resize: width = %d, height = %d" % (
-    output_width,
-    output_height))
+# print("\n--- filter parameters 4K ---\n")
+#
+# width_scale = rectilinear_focal_length_vertical / rectilinear_focal_length_horizontal
+#
+# output_height = 2160
+# output_width  = int(round((output_height / gopro_array_vertical) * gopro_array_horizontal * width_scale))
+#
+# print("resize: width = %d, height = %d, ratio = %f" % (
+#     output_width,
+#     output_height,
+#     output_width / output_height))