diff --git a/core/resources/l10n/messages.properties b/core/resources/l10n/messages.properties
index 88290ee6d..f567841a7 100644
--- a/core/resources/l10n/messages.properties
+++ b/core/resources/l10n/messages.properties
@@ -2334,6 +2334,7 @@ PhotoSettingsConfig.lbl.lightAz = Light Azimuth
 PhotoSettingsConfig.lbl.lightAlt = Light Altitude
 PhotoSettingsConfig.lbl.sky = Sky
 PhotoSettingsConfig.lbl.skyColor = Sky Color
+PhotoSettingsConfig.lbl.skyColorOpacity = Sky Color Opacity
 PhotoSettingsConfig.lbl.skyImage = Sky Image
 PhotoSettingsConfig.lbl.skyCredit = Image Credit
 
diff --git a/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettings.java b/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettings.java
index 2aecbe434..493cae0f0 100644
--- a/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettings.java
+++ b/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettings.java
@@ -24,6 +24,7 @@ public class PhotoSettings extends AbstractChangeSource implements FlameSettings
 	private double ambiance = .3f;
 	
 	private Color skyColor = new Color(55, 95, 155);
+	private double skyColorOpacity = 1.0;
 	
 	
 	private boolean motionBlurred = false;
@@ -186,9 +187,20 @@ public class PhotoSettings extends AbstractChangeSource implements FlameSettings
 	
 	public void setSkyColor(Color skyColor) {
 		this.skyColor = skyColor;
+		this.skyColorOpacity = skyColor.getAlpha() / 255f;
 		fireChangeEvent();
 	}
-	
+
+	public double getSkyColorOpacity() {
+		return skyColorOpacity;
+	}
+
+	public void setSkyColorOpacity(double skyColorOpacity) {
+		this.skyColorOpacity = skyColorOpacity;
+		skyColor.setAlpha((int) (skyColorOpacity * 255));
+		fireChangeEvent();
+	}
+
 	public Color getFlameColor() {
 		return flameColor;
 	}
diff --git a/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettingsConfig.java b/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettingsConfig.java
index a758cc320..e78e18087 100644
--- a/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettingsConfig.java
+++ b/swing/src/net/sf/openrocket/gui/figure3d/photo/PhotoSettingsConfig.java
@@ -256,10 +256,10 @@ public class PhotoSettingsConfig extends JTabbedPane {
 
 				/// Light altitude
 				add(new JLabel(trans.get("PhotoSettingsConfig.lbl.lightAlt")));
-				DoubleModel lightAltModle = new DoubleModel(p, "LightAlt", UnitGroup.UNITS_ANGLE, -Math.PI / 2, Math.PI / 2);
-				add(new EditableSpinner(lightAltModle.getSpinnerModel()), "growx, split 2");
-				add(new UnitSelector(lightAltModle));
-				add(new BasicSlider(lightAltModle.getSliderModel(-Math.PI / 2, Math.PI / 2)), "wrap");
+				DoubleModel lightAltModel = new DoubleModel(p, "LightAlt", UnitGroup.UNITS_ANGLE, -Math.PI / 2, Math.PI / 2);
+				add(new EditableSpinner(lightAltModel.getSpinnerModel()), "growx, split 2");
+				add(new UnitSelector(lightAltModel));
+				add(new BasicSlider(lightAltModel.getSliderModel(-Math.PI / 2, Math.PI / 2)), "wrap");
 
 				// Sky
 				add(new StyledLabel(trans.get("PhotoSettingsConfig.lbl.sky"), Style.BOLD), "split, span, gapright para");
@@ -269,6 +269,14 @@ public class PhotoSettingsConfig extends JTabbedPane {
 				add(new JLabel(trans.get("PhotoSettingsConfig.lbl.skyColor")));
 				add(skyColorButton, "wrap");
 
+				/// Sky color opacity
+				add(new JLabel(trans.get("PhotoSettingsConfig.lbl.skyColorOpacity")));
+				DoubleModel skyColorOpacityModel = new DoubleModel(p, "SkyColorOpacity", UnitGroup.UNITS_RELATIVE, 0, 1);
+				add(new EditableSpinner(skyColorOpacityModel.getSpinnerModel()), "growx, split 2");
+				add(new UnitSelector(skyColorOpacityModel));
+				add(new BasicSlider(skyColorOpacityModel.getSliderModel()), "wrap");
+				p.addChangeListener(skyColorOpacityModel);
+
 				/// Sky image
 				add(new JLabel(trans.get("PhotoSettingsConfig.lbl.skyImage")));