diff --git a/.gitignore b/.gitignore
index 3e67672..41ded9e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
+testsource
+testdest
 testdata
 usercomment.sh
diff --git a/exif_rad.py b/exif_rad.py
index 2e23365..13b8f08 100755
--- a/exif_rad.py
+++ b/exif_rad.py
@@ -38,22 +38,21 @@ parser.add_argument('-o', '--outdir', type=str, default='.',
 
 args = parser.parse_args()
 
-# Import GeigerCounter log
-with open(args.csv, "r") as f:
-    csvreader = csv.reader(filter(lambda row: row[0]!='#', f), delimiter=',', skipinitialspace=True)
-
-    for photo in args.photos:
-        # Load Image and EXIF data
-        im = Image.open(photo)
-        exif_dict = piexif.load(im.info['exif'])
-        photo_basename = os.path.basename(photo)
+for photo in args.photos:
+    # Load Image and EXIF data
+    im = Image.open(photo)
+    exif_dict = piexif.load(im.info['exif'])
+    photo_basename = os.path.basename(photo)
+    
+    # Import GeigerCounter log
+    with open(args.csv, "r") as f:
+        csvreader = csv.reader(filter(lambda row: row[0]!='#', f), delimiter=',', skipinitialspace=True)
 
         picrawtime = exif_dict['Exif'][piexif.ExifIFD.DateTimeOriginal].decode('ASCII')
         picisotime = datetime.strptime(picrawtime, "%Y:%m:%d %H:%M:%S")
         print('Processing file:', photo_basename, end='\r')
         for _, csvrawtime, csvrawcpm, _ in csvreader:
             csvisotime = datetime.fromisoformat(csvrawtime)
-            
             if csvisotime == picisotime:
                 rad = round(float(csvrawcpm) * args.sifactor, 2)
 
@@ -68,9 +67,9 @@ with open(args.csv, "r") as f:
                 # be os aware and use the correct directory delimiter
                 outfile = os.path.join(args.outdir, photo_basename)
                 im.save(outfile, exif=exif_bytes)
-
                 # print output
                 print('{:<30} {:<20} {:<22}'.format(photo_basename, str(picisotime), new_comment))
                 break
         else:
             print('{:<30} {:<20} {:<22}'.format(photo_basename, str(picisotime), 'NOT FOUND!'))
+    f.close()