diff --git a/colour_clf_io/elements.py b/colour_clf_io/elements.py
index 3f127f5..5cda430 100644
--- a/colour_clf_io/elements.py
+++ b/colour_clf_io/elements.py
@@ -313,7 +313,7 @@ def from_xml(
         return SOPNode(slope=slope, offset=offset, power=power)
 
     @classmethod
-    def default(cls) -> Self:
+    def default(cls) -> SOPNode:
         """
         Return the default SOPNode instance. Contains the default values that
         should be used per specification in case the actual value is not provided.
@@ -395,7 +395,7 @@ def from_xml(
         return SatNode(saturation=saturation)
 
     @classmethod
-    def default(cls) -> Self:
+    def default(cls) -> SatNode:
         """
         Return the default SatNode instance. Contains the default values that
         should be used per specification in case the actual value is not provided.
@@ -504,7 +504,7 @@ def from_xml(xml: lxml.etree._Element | None, config: ParserConfig) -> Info | No
             },
         )
         calibration_info = CalibrationInfo.from_xml(
-            child_element(xml, "CalibrationInfo", config),  # pyright: ignore
+            child_element(xml, "CalibrationInfo", config),
             config,
         )
 
@@ -640,7 +640,7 @@ def from_xml(
         return LogParams(channel=channel, **attributes)
 
     @classmethod
-    def default(cls) -> Self:
+    def default(cls) -> LogParams:
         """
         Return the default LogParams instance. Contains the default values that
         should be used per specification in case the actual value is not provided.
@@ -758,7 +758,7 @@ def from_xml(
         return ExponentParams(channel=channel, exponent=exponent, **attributes)
 
     @classmethod
-    def default(cls) -> Self:
+    def default(cls) -> ExponentParams:
         """
         Return the default ExponentParams instance. Contains the default values that
         should be used per specification in case the actual value is not provided.
diff --git a/colour_clf_io/parsing.py b/colour_clf_io/parsing.py
index 60f567d..a0fb131 100644
--- a/colour_clf_io/parsing.py
+++ b/colour_clf_io/parsing.py
@@ -235,8 +235,8 @@ def check_none(value: T | None, message: str) -> TypeGuard[T]:
 
 
 def child_element(
-    xml, name, config: ParserConfig
-) -> xml.etree.ElementTree.Element | None:
+    xml: lxml.etree._Element, name: str, config: ParserConfig
+) -> lxml.etree._Element | None:
     """
     Return a named child element of the given XML element.
 
@@ -274,8 +274,8 @@ def child_element(
 
 
 def child_elements(
-    xml, name, config: ParserConfig
-) -> list[xml.etree.ElementTree.Element]:
+    xml: lxml.etree._Element, name: str, config: ParserConfig
+) -> list[lxml.etree._Element]:
     """
     Return all child elements with a given name of an XML element.
 
@@ -482,16 +482,15 @@ def three_floats(text: str | None) -> tuple[float, float, float]:
     :class:`tuple` of :class:`float`
         Three floating point values.
     """
+    exception = f"Failed to parse three float values from {text}"
 
     if text is None:
-        exception = f"Failed to parse three float values from {text}"
-
         raise ParsingError(exception)
 
     parts = text.split()
 
     if len(parts) != 3:
-        raise ParsingError(f"Failed to parse three float values from {s}")
+        raise ParsingError(exception)
     values = tuple(map(float, parts))
     # Note: Repacking here to satisfy type check.
     return values[0], values[1], values[2]
diff --git a/colour_clf_io/process_nodes.py b/colour_clf_io/process_nodes.py
index e52cd4a..6a0353f 100644
--- a/colour_clf_io/process_nodes.py
+++ b/colour_clf_io/process_nodes.py
@@ -312,7 +312,7 @@ def from_xml(xml: lxml.etree._Element | None, config: ParserConfig) -> LUT1D | N
             return None
 
         super_args = ProcessNode.parse_attributes(xml, config)
-        array = Array.from_xml(child_element(xml, "Array", config), config)  # pyright: ignore
+        array = Array.from_xml(child_element(xml, "Array", config), config)
 
         if array is None:
             exception = "LUT1D processing node does not have an Array element."
@@ -380,7 +380,7 @@ def from_xml(xml: lxml.etree._Element | None, config: ParserConfig) -> LUT3D | N
             return None
 
         super_args = ProcessNode.parse_attributes(xml, config)
-        array = Array.from_xml(child_element(xml, "Array", config), config)  # pyright: ignore
+        array = Array.from_xml(child_element(xml, "Array", config), config)
 
         if array is None:
             exception = "LUT3D processing node does not have an Array element."
@@ -448,7 +448,7 @@ def from_xml(
             return None
 
         super_args = ProcessNode.parse_attributes(xml, config)
-        array = Array.from_xml(child_element(xml, "Array", config), config)  # pyright: ignore
+        array = Array.from_xml(child_element(xml, "Array", config), config)
 
         if array is None:
             exception = "Matrix processing node does not have an Array element."
@@ -584,7 +584,7 @@ def from_xml(xml: lxml.etree._Element | None, config: ParserConfig) -> Log | Non
         params = [
             param
             for param in [
-                LogParams.from_xml(param_element, config)  # pyright: ignore
+                LogParams.from_xml(param_element, config)
                 for param_element in param_elements
             ]
             if param is not None
@@ -653,7 +653,7 @@ def from_xml(
         params = [
             param
             for param in [
-                ExponentParams.from_xml(param_element, config)  # pyright: ignore
+                ExponentParams.from_xml(param_element, config)
                 for param_element in param_elements
             ]
             if param is not None
@@ -718,7 +718,7 @@ def from_xml(
 
         super_args = ProcessNode.parse_attributes(xml, config)
         style = ASC_CDLStyle(xml.get("style"))
-        sop_node = SOPNode.from_xml(child_element(xml, "SOPNode", config), config)  # pyright: ignore
-        sat_node = SatNode.from_xml(child_element(xml, "SatNode", config), config)  # pyright: ignore
+        sop_node = SOPNode.from_xml(child_element(xml, "SOPNode", config), config)
+        sat_node = SatNode.from_xml(child_element(xml, "SatNode", config), config)
 
         return ASC_CDL(style=style, sopnode=sop_node, sat_node=sat_node, **super_args)