diff --git a/screenless/bureau/photography/photography.py b/screenless/bureau/photography/photography.py
index 1803802..94f2239 100644
--- a/screenless/bureau/photography/photography.py
+++ b/screenless/bureau/photography/photography.py
@@ -111,8 +111,14 @@ class Photography(Bureau):
 
         # crop
         img = Image.open(tmpimg.name)
+        img = img.transpose(Image.ROTATE_180)
+        xsize, ysize = img.size
 
-        #TODO: crop here to trim calibrated extra pixels
+        #crop here to trim calibrated extra pixels
+        loffset = round(xsize * (float(23) / 257))
+        roffset = round(xsize * (float(8) / 257))
+        box = (loffset, 0, roffset, ysize)
+        img = img.crop(box)
 
         xsize, ysize = img.size
         if gpio.input(self.a4_pin) == 0: