diff --git a/micasense/image.py b/micasense/image.py
index 5bd08cad..78b373e4 100644
--- a/micasense/image.py
+++ b/micasense/image.py
@@ -68,12 +68,6 @@ def __init__(self, image_path, exiftool_obj=None):
         self.path = image_path
         self.meta = metadata.Metadata(self.path, exiftool_obj=exiftool_obj)
 
-        if self.meta.band_name() is None:
-            raise ValueError("Provided file path does not have a band name: {}".format(image_path))
-        if self.meta.band_name().upper() != 'LWIR' and not self.meta.supports_radiometric_calibration():
-            raise ValueError('Library requires images taken with RedEdge-(3/M/MX) camera firmware v2.1.0 or later. ' +
-            'Upgrade your camera firmware to at least version 2.1.0 to use this library with RedEdge-(3/M/MX) cameras.')
-
         self.utc_time = self.meta.utc_time()
         self.latitude, self.longitude, self.altitude = self.meta.position()
         self.location = (self.latitude, self.longitude, self.altitude)
@@ -356,7 +350,7 @@ def plottable_vignette(self):
 
     def cv2_distortion_coeff(self):
         #dist_coeffs = np.array(k[0],k[1],p[0],p[1],k[2]])
-        return np.array(self.distortion_parameters)[[0, 1, 3, 4, 2]]
+        return np.array(self.distortion_parameters)[[0, 1, 2, 3]]
 
     # values in pp are in [mm], rescale to pixels
     def principal_point_px(self):
diff --git a/micasense/imageutils.py b/micasense/imageutils.py
index 8ffef33f..c57f0fd7 100644
--- a/micasense/imageutils.py
+++ b/micasense/imageutils.py
@@ -158,7 +158,7 @@ def align(pair):
                 print("Starting warp for level {} is:\n {}".format(level,warp_matrix))
 
             try:
-                cc, warp_matrix = cv2.findTransformECC(grad1, grad2, warp_matrix, warp_mode, criteria, inputMask=None, gaussFiltSize=1)
+                cc, warp_matrix = cv2.findTransformECC(grad1, grad2, warp_matrix, warp_mode, criteria, None, 1)
             except TypeError:
                 cc, warp_matrix = cv2.findTransformECC(grad1, grad2, warp_matrix, warp_mode, criteria)
             
@@ -414,4 +414,4 @@ def map_points(pts, image_size, warpMatrix, distortion_coeffs, camera_matrix,war
     if cv2.__version__<='3.4.4':
         return new_pts[0]
     else:
-        return new_pts[:,0,:]
\ No newline at end of file
+        return new_pts[:,0,:]
diff --git a/micasense/metadata.py b/micasense/metadata.py
index 5941bf24..d4838632 100644
--- a/micasense/metadata.py
+++ b/micasense/metadata.py
@@ -103,7 +103,7 @@ def dls_present(self):
                or self.get_item("XMP:DirectIrradiance is not None") is not None
 
     def supports_radiometric_calibration(self):
-        if(self.get_item('XMP:RadiometricCalibration')) is None:
+        if(self.get_item('XMP:CalibrationPicture') is None):
             return False
         return True
 
@@ -184,7 +184,7 @@ def exposure(self):
         return exp
 
     def gain(self):
-        return self.get_item('EXIF:ISOSpeed')/100.0
+        return self.get_item('EXIF:ISO')/100.0
 
     def image_size(self):
         return self.get_item('EXIF:ImageWidth'), self.get_item('EXIF:ImageHeight')
@@ -196,8 +196,9 @@ def bandwidth(self):
         return self.get_item('XMP:WavelengthFWHM')
 
     def radiometric_cal(self):
-        nelem = self.size('XMP:RadiometricCalibration')
-        return [float(self.get_item('XMP:RadiometricCalibration', i)) for i in range(nelem)]
+        nelem = self.size('XMP:CalibrationMeasurement')
+        print(self.get_item('XMP:CalibrationMeasurement', 0))
+        return [float(self.get_item('XMP:CalibrationMeasurement', i)) for i in range(nelem)]
 
     def black_level(self):
         if self.get_item('EXIF:BlackLevel') is None:
@@ -227,8 +228,8 @@ def bits_per_pixel(self):
 
     def vignette_center(self):
         ''' get the vignette center in X and Y image coordinates'''
-        nelem = self.size('XMP:VignettingCenter')
-        return [float(self.get_item('XMP:VignettingCenter', i)) for i in range(nelem)]
+        nelem = self.size('XMP:PrincipalPoint')#XMP:VignettingCenter
+        return [float(self.get_item('XMP:PrincipalPoint', i)) for i in range(nelem)]
 
     def vignette_polynomial(self):
         ''' get the radial vignette polynomial in the order it's defined in the metadata'''
@@ -236,8 +237,8 @@ def vignette_polynomial(self):
         return [float(self.get_item('XMP:VignettingPolynomial', i)) for i in range(nelem)]
 
     def distortion_parameters(self):
-        nelem = self.size('XMP:PerspectiveDistortion')
-        return [float(self.get_item('XMP:PerspectiveDistortion', i)) for i in range(nelem)]
+        nelem = self.size('XMP:FisheyeAffineMatrix')#XMP:PerspectiveDistortion
+        return [float(self.get_item('XMP:FisheyeAffineMatrix', i)) for i in range(nelem)]
 
     def principal_point(self):
         return [float(item) for item in self.get_item('XMP:PrincipalPoint').split(',')]
@@ -248,17 +249,12 @@ def focal_plane_resolution_px_per_mm(self):
         return fp_x_resolution, fp_y_resolution
 
     def focal_length_mm(self):
-        units = self.get_item('XMP:PerspectiveFocalLengthUnits')
         focal_length_mm = 0.0
-        if units == 'mm':
-            focal_length_mm = float(self.get_item('XMP:PerspectiveFocalLength'))
-        else:
-            focal_length_px = float(self.get_item('XMP:PerspectiveFocalLength'))
-            focal_length_mm = focal_length_px / self.focal_plane_resolution_px_per_mm()[0]
+        focal_length_mm = float(self.get_item('EXIF:FocalLength'))
         return focal_length_mm
 
     def focal_length_35_mm_eq(self):
-        return float(self.get_item('Composite:FocalLength35efl'))
+        return float(self.get_item('EXIF:FocalLengthIn35mmFormat'))
 
     def __float_or_zero(self, str):
         if str is not None: