diff --git a/imagekit/fields.py b/imagekit/fields.py
index fdf9002..3d3949e 100755
--- a/imagekit/fields.py
+++ b/imagekit/fields.py
@@ -24,11 +24,11 @@ class _ImageSpecMixin(object):
         self.quality = quality
         self.format = format
 
-    def process(self, image, obj):
+    def process(self, image, file):
         fmt = image.format
         img = image.copy()
         for proc in self.processors:
-            img, fmt = proc.process(img, fmt, obj, self)
+            img, fmt = proc.process(img, fmt, file)
         format = self.format or fmt
         img.format = format
         return img, format
@@ -161,7 +161,7 @@ class ImageSpecFile(object):
                 return
             fp.seek(0)
             fp = StringIO(fp.read())
-            self._img, self._fmt = self._spec.process(Image.open(fp), self._obj)
+            self._img, self._fmt = self._spec.process(Image.open(fp), self)
             # save the new image to the cache
             content = ContentFile(self._get_imgfile().read())
             self.storage.save(self.name, content)
@@ -270,7 +270,7 @@ def _post_save_handler(sender, instance=None, created=False, raw=False, **kwargs
         if imgfield:
             newfile = imgfield.storage.open(imgfield.name)
             img = Image.open(newfile)
-            img, format = spec_file._spec.process(img, instance)
+            img, format = spec_file._spec.process(img, spec_file)
             if format != 'JPEG':
                 imgfile = img_to_fobj(img, format)
             else:
@@ -347,7 +347,7 @@ class ProcessedImageFieldFile(ImageFieldFile):
     def save(self, name, content, save=True):
         new_filename = self.field.generate_filename(self.instance, name)
         img = Image.open(content)
-        img, format = self.field.process(img, self.instance)
+        img, format = self.field.process(img, self)
         format = self._get_format(new_filename, format)
         if format != 'JPEG':
             imgfile = img_to_fobj(img, format)
diff --git a/imagekit/processors.py b/imagekit/processors.py
index 825f32e..028a884 100644
--- a/imagekit/processors.py
+++ b/imagekit/processors.py
@@ -11,7 +11,7 @@ from imagekit.lib import *
 class ImageProcessor(object):
     """ Base image processor class """
 
-    def process(self, img, fmt, obj, spec):
+    def process(self, img, fmt, file):
         return img, fmt
 
 
@@ -23,7 +23,7 @@ class Adjust(ImageProcessor):
         self.contrast = contrast
         self.sharpness = sharpness
 
-    def process(self, img, fmt, obj, spec):
+    def process(self, img, fmt, file):
         img = img.convert('RGB')
         for name in ['Color', 'Brightness', 'Contrast', 'Sharpness']:
             factor = getattr(self, name.lower())
@@ -40,7 +40,7 @@ class Reflection(ImageProcessor):
     size = 0.0
     opacity = 0.6
 
-    def process(self, img, fmt, obj, spec):
+    def process(self, img, fmt, file):
         # convert bgcolor string to rgb value
         background_color = ImageColor.getrgb(self.background_color)
         # handle palleted images
@@ -88,7 +88,7 @@ class _Resize(ImageProcessor):
         if height is not None:
             self.height = height
 
-    def process(self, img, fmt, obj, spec):
+    def process(self, img, fmt, file):
         raise NotImplementedError('process must be overridden by subclasses.')
 
 
@@ -120,7 +120,7 @@ class Crop(_Resize):
         super(Crop, self).__init__(width, height)
         self.anchor = anchor
 
-    def process(self, img, fmt, obj, spec):
+    def process(self, img, fmt, file):
         cur_width, cur_height = img.size
         horizontal_anchor, vertical_anchor = Crop._ANCHOR_PTS[self.anchor or \
                 Crop.CENTER]
@@ -148,7 +148,7 @@ class Fit(_Resize):
         super(Fit, self).__init__(width, height)
         self.upscale = upscale
 
-    def process(self, img, fmt, obj, spec):
+    def process(self, img, fmt, file):
         cur_width, cur_height = img.size
         if not self.width is None and not self.height is None:
             ratio = min(float(self.width)/cur_width,
@@ -196,10 +196,10 @@ class Transpose(ImageProcessor):
 
     method = 'auto'
 
-    def process(self, img, fmt, obj, spec):
+    def process(self, img, fmt, file):
         if self.method == 'auto':
             try:
-                orientation = Image.open(spec._get_imgfield(obj).file)._getexif()[0x0112]
+                orientation = Image.open(file.file)._getexif()[0x0112]
                 ops = self.EXIF_ORIENTATION_STEPS[orientation]
             except:
                 ops = []