diff --git a/nerfstudio/cameras/cameras.py b/nerfstudio/cameras/cameras.py
index 8d66e3ae4..edc8da0a0 100644
--- a/nerfstudio/cameras/cameras.py
+++ b/nerfstudio/cameras/cameras.py
@@ -420,7 +420,7 @@ class Cameras:
                 self.cy[indices],
                 height=self._image_heights[indices],
                 width=self._image_widths[indices],
-                distortion_params=self.distortion_params[indices] if self.distortion_params else None,
+                distortion_params=self.distortion_params[indices] if self.distortion_params is not None else None,
                 camera_type=self.camera_type[indices],
             )
         if isinstance(indices, (int, slice)):
@@ -433,6 +433,8 @@ class Cameras:
             self.cy[indices + (slice(None),)],
             height=self._image_heights[indices + (slice(None),)],
             width=self._image_widths[indices + (slice(None),)],
-            distortion_params=self.distortion_params[indices + (slice(None),)] if self.distortion_params else None,
+            distortion_params=self.distortion_params[indices + (slice(None),)]
+            if self.distortion_params is not None
+            else None,
             camera_type=self.camera_type[indices + (slice(None),)],
         )