diff --git a/src/main/java/net/imglib2/RandomAccessibleInterval.java b/src/main/java/net/imglib2/RandomAccessibleInterval.java
index fa31c75ae..d21763831 100644
--- a/src/main/java/net/imglib2/RandomAccessibleInterval.java
+++ b/src/main/java/net/imglib2/RandomAccessibleInterval.java
@@ -118,7 +118,7 @@ default Object iterationOrder()
 	 *         views} into this {@code RandomAccessibleInterval}.
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > view()
+	default RandomAccessibleIntervalView< T, ? > view()
 	{
 		return RandomAccessibleIntervalView.wrap( this );
 	}
diff --git a/src/main/java/net/imglib2/RealRandomAccessible.java b/src/main/java/net/imglib2/RealRandomAccessible.java
index cd6d80ca3..212f8d632 100644
--- a/src/main/java/net/imglib2/RealRandomAccessible.java
+++ b/src/main/java/net/imglib2/RealRandomAccessible.java
@@ -139,7 +139,7 @@ default T getAt( final RealLocalizable position )
 	 * @return gateway for creating light-weight views into this {@code
 	 *         RealRandomAccessible}.
 	 */
-	default RealRandomAccessibleView< T > realView()
+	default RealRandomAccessibleView< T, ? > realView()
 	{
 		return RealRandomAccessibleView.wrap( this );
 	}
diff --git a/src/main/java/net/imglib2/view/fluent/RandomAccessibleIntervalView.java b/src/main/java/net/imglib2/view/fluent/RandomAccessibleIntervalView.java
index f80ca24b4..4f5c484f7 100644
--- a/src/main/java/net/imglib2/view/fluent/RandomAccessibleIntervalView.java
+++ b/src/main/java/net/imglib2/view/fluent/RandomAccessibleIntervalView.java
@@ -33,9 +33,6 @@
  */
 package net.imglib2.view.fluent;
 
-import java.util.function.Function;
-import java.util.function.Supplier;
-
 import net.imglib2.Cursor;
 import net.imglib2.FlatIterationOrder;
 import net.imglib2.RandomAccessible;
@@ -55,6 +52,8 @@
 import net.imglib2.view.IterableRandomAccessibleInterval;
 import net.imglib2.view.Views;
 
+import java.util.function.Supplier;
+
 /**
  * Gateway for creating light-weight views on a {@code RandomAccessibleInterval}.
  * <p>
@@ -86,14 +85,14 @@
  * @author Michael Innerberger
  * @see Views
  */
-public interface RandomAccessibleIntervalView< T > extends RandomAccessibleView< T, RandomAccessibleIntervalView< T > >, RandomAccessibleInterval< T >
+public interface RandomAccessibleIntervalView< T , V extends RandomAccessibleIntervalView< T , V >> extends RandomAccessibleView< T, V >, RandomAccessibleInterval< T >
 {
 	@Override
 	RandomAccessibleInterval< T > delegate();
 
-	static < T > RandomAccessibleIntervalView< T > wrap( final RandomAccessibleInterval< T > delegate )
+	static < T, V extends RandomAccessibleIntervalView< T, V > > RandomAccessibleIntervalView< T, ? > wrap( final RandomAccessibleInterval< T > delegate )
 	{
-		return () -> delegate;
+		return (RandomAccessibleIntervalView< T, V >) () -> delegate;
 	}
 
 	// -- Views methods -------------------------------------------------------
@@ -108,7 +107,7 @@ static < T > RandomAccessibleIntervalView< T > wrap( final RandomAccessibleInter
 	 *
 	 * @return a view with flat iteration order
 	 */
-	default RandomAccessibleIntervalView< T > flatIterable()
+	default RandomAccessibleIntervalView< T, ? > flatIterable()
 	{
 		return wrap( Views.flatIterable( delegate() ) );
 	}
@@ -126,7 +125,7 @@ default RandomAccessibleIntervalView< T > flatIterable()
 	 * @return a view on the given slice
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > slice( int d, long pos )
+	default RandomAccessibleIntervalView< T, ? > slice( int d, long pos )
 	{
 		return wrap( Views.hyperSlice( delegate(), d, pos ) );
 	}
@@ -147,7 +146,7 @@ default RandomAccessibleIntervalView< T > slice( int d, long pos )
 	 *
 	 * @return a view with an additional dimension
 	 */
-	default RandomAccessibleIntervalView< T > addDimension( long minOfNewDim, long maxOfNewDim )
+	default RandomAccessibleIntervalView< T, ? > addDimension( long minOfNewDim, long maxOfNewDim )
 	{
 		return wrap( Views.addDimension( delegate(), minOfNewDim, maxOfNewDim ) );
 	}
@@ -164,7 +163,7 @@ default RandomAccessibleIntervalView< T > addDimension( long minOfNewDim, long m
 	 * @return a translated view
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > translate( long... translation )
+	default RandomAccessibleIntervalView< T, ? > translate( long... translation )
 	{
 		return wrap( Views.translate( delegate(), translation ) );
 	}
@@ -182,7 +181,7 @@ default RandomAccessibleIntervalView< T > translate( long... translation )
 	 * @return an inverse-translated view
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > translateInverse( long... translation )
+	default RandomAccessibleIntervalView< T, ? > translateInverse( long... translation )
 	{
 		return wrap( Views.translateInverse( delegate(), translation ) );
 	}
@@ -193,7 +192,7 @@ default RandomAccessibleIntervalView< T > translateInverse( long... translation
 	 *
 	 * @return a view that is translated to the origin
 	 */
-	default RandomAccessibleIntervalView< T > zeroMin()
+	default RandomAccessibleIntervalView< T, ? > zeroMin()
 	{
 		return wrap( Views.zeroMin( delegate() ) );
 	}
@@ -213,7 +212,7 @@ default RandomAccessibleIntervalView< T > zeroMin()
 	 * @return a subsampled view
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > subsample( final long... steps )
+	default RandomAccessibleIntervalView< T, ? > subsample( final long... steps )
 	{
 		return wrap( Views.subsample( delegate(), Util.expandArray( steps, numDimensions() ) ) );
 	}
@@ -242,7 +241,7 @@ default RandomAccessibleIntervalView< T > subsample( final long... steps )
 	 * @return a view rotated 90 degrees
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > rotate( int fromAxis, int toAxis )
+	default RandomAccessibleIntervalView< T, ? > rotate( int fromAxis, int toAxis )
 	{
 		return wrap( Views.rotate( delegate(), fromAxis, toAxis ) );
 	}
@@ -259,7 +258,7 @@ default RandomAccessibleIntervalView< T > rotate( int fromAxis, int toAxis )
 	 * @return a view with permuted axes
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > permute( int fromAxis, int toAxis )
+	default RandomAccessibleIntervalView< T, ? > permute( int fromAxis, int toAxis )
 	{
 		return wrap( Views.permute( delegate(), fromAxis, toAxis ) );
 	}
@@ -280,7 +279,7 @@ default RandomAccessibleIntervalView< T > permute( int fromAxis, int toAxis )
 	 * @return a view with permuted axes
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > moveAxis( int fromAxis, int toAxis )
+	default RandomAccessibleIntervalView< T, ? > moveAxis( int fromAxis, int toAxis )
 	{
 		return wrap( Views.moveAxis( delegate(), fromAxis, toAxis ) );
 	}
@@ -303,7 +302,7 @@ default RandomAccessibleIntervalView< T > moveAxis( int fromAxis, int toAxis )
 	 * @return a view with {@code axis} inverted
 	 */
 	@Override
-	default RandomAccessibleIntervalView< T > invertAxis( int axis )
+	default RandomAccessibleIntervalView< T, ? > invertAxis( int axis )
 	{
 		return wrap( Views.invertAxis( delegate(), axis ) );
 	}
@@ -325,11 +324,11 @@ default RandomAccessibleIntervalView< T > invertAxis( int axis )
 	 * @param <T>
 	 *     pixel type ot the {@code RandomAccessible} to be extended
 	 */
-	class Extension< T >
+	class Extension< T, V extends RandomAccessibleIntervalView< T, V >>
 	{
-		final OutOfBoundsFactory< T, RandomAccessibleIntervalView< T > > factory;
+		final OutOfBoundsFactory< T, RandomAccessibleIntervalView< T, V > > factory;
 
-		private Extension( OutOfBoundsFactory< T, RandomAccessibleIntervalView< T > > factory )
+		private Extension( OutOfBoundsFactory< T, RandomAccessibleIntervalView< T, V > > factory )
 		{
 			this.factory = factory;
 		}
@@ -339,7 +338,7 @@ private Extension( OutOfBoundsFactory< T, RandomAccessibleIntervalView< T > > fa
 		 * <p>
 		 * Out-of-bounds pixels are created by repeating border pixels.
 		 */
-		public static < T > Extension< T > border()
+		public static < T, V extends RandomAccessibleIntervalView< T, V > > Extension< T, V > border()
 		{
 			return new Extension<>(new OutOfBoundsBorderFactory<>() );
 		}
@@ -349,9 +348,9 @@ public static < T > Extension< T > border()
 		 * <p>
 		 * All out-of-bounds pixels have value zero.
 		 */
-		public static < T extends Type< T > & SetZero > Extension< T > zero()
+		public static < T extends Type< T > & SetZero, V extends RandomAccessibleIntervalView< T, V >> Extension< T, V > zero()
 		{
-			return new Extension<>( new OutOfBoundsZeroFactory< T, RandomAccessibleIntervalView< T > >() );
+			return new Extension<>( new OutOfBoundsZeroFactory< T, RandomAccessibleIntervalView< T, V > >() );
 		}
 
 		/**
@@ -359,7 +358,7 @@ public static < T extends Type< T > & SetZero > Extension< T > zero()
 		 * <p>
 		 * All out-of-bounds pixels have the provided {@code value}.
 		 */
-		public static < T > Extension< T > value( T value )
+		public static < T, V extends RandomAccessibleIntervalView< T, V > > Extension< T, V > value( T value )
 		{
 			return new Extension<>(new OutOfBoundsConstantValueFactory<>( value ) );
 		}
@@ -371,7 +370,7 @@ public static < T > Extension< T > value( T value )
 		 * are not repeated. Note that this requires that all dimensions of the
 		 * source must be &gt; 1.
 		 */
-		public static < T > Extension< T > mirrorSingle()
+		public static < T, V extends RandomAccessibleIntervalView< T, V > > Extension< T, V > mirrorSingle()
 		{
 			return new Extension<>(new OutOfBoundsMirrorFactory<>( OutOfBoundsMirrorFactory.Boundary.SINGLE ) );
 		}
@@ -382,7 +381,7 @@ public static < T > Extension< T > mirrorSingle()
 		 * Out-of-bounds pixels are created by mirroring, where boundary pixels
 		 * are repeated.
 		 */
-		public static < T > Extension< T > mirrorDouble()
+		public static < T, V extends RandomAccessibleIntervalView< T, V > > Extension< T, V > mirrorDouble()
 		{
 			return new Extension<>(new OutOfBoundsMirrorFactory<>( OutOfBoundsMirrorFactory.Boundary.DOUBLE ) );
 		}
@@ -393,7 +392,7 @@ public static < T > Extension< T > mirrorDouble()
 		 * Out-of-bounds pixels are created by periodically repeating the source
 		 * image.
 		 */
-		public static < T > Extension< T > periodic()
+		public static < T, V extends RandomAccessibleIntervalView< T, V > > Extension< T, V > periodic()
 		{
 			return new Extension<>(new OutOfBoundsPeriodicFactory<>() );
 		}
@@ -419,7 +418,7 @@ public static < T > Extension< T > periodic()
 	 *
 	 * @return an extended (unbounded) view
 	 */
-	default RandomAccessibleView< T, ? > extend( Extension< T > extension )
+	default RandomAccessibleView< T, ? > extend( Extension< T, V > extension )
 	{
 		return RandomAccessibleView.wrap( Views.extend( this, extension.factory ) );
 	}
@@ -455,7 +454,7 @@ public static < T > Extension< T > periodic()
 	 *
 	 * @return an expanded view
 	 */
-	default RandomAccessibleIntervalView< T > expand( Extension< T > extension, long... border )
+	default RandomAccessibleIntervalView< T, ? > expand( Extension< T, V > extension, long... border )
 	{
 		return RandomAccessibleIntervalView.wrap( Views.expand( this, extension.factory, Util.expandArray( border, numDimensions() ) ) );
 	}
@@ -479,7 +478,7 @@ default RandomAccessibleIntervalView< T > expand( Extension< T > extension, long
 	 * @return a converted view
 	 */
 	@Override
-	default < U > RandomAccessibleIntervalView< U > convert(
+	default < U > RandomAccessibleIntervalView< U, ? > convert(
 			final Supplier< U > targetSupplier, final Converter< ? super T, ? super U > converter )
 	{
 		return wrap( Converters.convert2( delegate(), converter, targetSupplier ) );
@@ -505,34 +504,16 @@ default < U > RandomAccessibleIntervalView< U > convert(
 	 * @return a converted view
 	 */
 	@Override
-	default < U > RandomAccessibleIntervalView< U > convert(
+	default < U > RandomAccessibleIntervalView< U, ? > convert(
 			final Supplier< U > targetSupplier, final Supplier< Converter< ? super T, ? super U > > converterSupplier )
 	{
 		return wrap( Converters.convert2( delegate(), converterSupplier, targetSupplier ) );
 	}
 
-	/**
-	 * Apply the specified {@code function} to this {@code
-	 * RandomAccessibleInterval} and return the result.
-	 *
-	 * @param function
-	 * 		function to evaluate on this {@code RandomAccessibleInterval}
-	 * @param <U>
-	 * 		the type of the result of the function
-	 *
-	 * @return {@code function.apply(this)}
-	 */
-	@Override
-	default < U > U use( Function< ? super RandomAccessibleIntervalView< T >, U > function )
-	{
-		return function.apply( this );
-	}
-
-
 	// -- RandomAccessibleInterval --------------------------------------------
 
 	@Override
-	default RandomAccessibleIntervalView< T > view()
+	default RandomAccessibleIntervalView< T, V > view()
 	{
 		return this;
 	}
diff --git a/src/main/java/net/imglib2/view/fluent/RandomAccessibleView.java b/src/main/java/net/imglib2/view/fluent/RandomAccessibleView.java
index 6e0534edb..24c7d3d4a 100644
--- a/src/main/java/net/imglib2/view/fluent/RandomAccessibleView.java
+++ b/src/main/java/net/imglib2/view/fluent/RandomAccessibleView.java
@@ -87,9 +87,9 @@ public interface RandomAccessibleView< T, V extends RandomAccessibleView< T, V >
 {
 	RandomAccessible< T > delegate();
 
-	static < T, V extends RandomAccessibleView< T, V > > RandomAccessibleView< T, V > wrap( final RandomAccessible< T > delegate )
+	static < T, V extends RandomAccessibleView< T, V >> RandomAccessibleView< T, ? > wrap( final RandomAccessible< T > delegate )
 	{
-		return ( RandomAccessibleView< T, V > ) () -> delegate;
+		return (RandomAccessibleView< T, V >) () -> delegate;
 	}
 
 	// -- Views methods -------------------------------------------------------
@@ -109,7 +109,7 @@ static < T, V extends RandomAccessibleView< T, V > > RandomAccessibleView< T, V
 	 *
 	 * @return a view on the given interval
 	 */
-	default RandomAccessibleIntervalView< T > interval( Interval interval )
+	default RandomAccessibleIntervalView< T, ? > interval( Interval interval )
 	{
 		return RandomAccessibleIntervalView.wrap( Views.interval( delegate(), interval ) );
 	}
@@ -354,7 +354,7 @@ public static < T extends RealType< T > > Interpolation< T > lanczos()
 	 *
 	 * @return an interpolated view
 	 */
-	default RealRandomAccessibleView< T > interpolate( final Interpolation< T > interpolation )
+	default RealRandomAccessibleView< T, ? > interpolate( final Interpolation< T > interpolation )
 	{
 		return RealRandomAccessibleView.wrap( Views.interpolate( delegate(), interpolation.factory ) );
 	}
diff --git a/src/main/java/net/imglib2/view/fluent/RealRandomAccessibleView.java b/src/main/java/net/imglib2/view/fluent/RealRandomAccessibleView.java
index 1852f9590..41fe02b3a 100644
--- a/src/main/java/net/imglib2/view/fluent/RealRandomAccessibleView.java
+++ b/src/main/java/net/imglib2/view/fluent/RealRandomAccessibleView.java
@@ -72,13 +72,13 @@
  * @author Michael Innerberger
  * @see Views
  */
-public interface RealRandomAccessibleView< T > extends RealRandomAccessible< T >
+public interface RealRandomAccessibleView< T, V extends RealRandomAccessibleView< T, V > > extends RealRandomAccessible< T >
 {
 	RealRandomAccessible< T > delegate();
 
-	static < T > RealRandomAccessibleView< T > wrap( final RealRandomAccessible< T > delegate )
+	static < T, V extends RealRandomAccessibleView< T, V >> RealRandomAccessibleView< T, ? > wrap( final RealRandomAccessible< T > delegate )
 	{
-		return () -> delegate;
+		return (RealRandomAccessibleView< T, V >) () -> delegate;
 	}
 
 	// -- Views methods -------------------------------------------------------
@@ -113,9 +113,9 @@ static < T > RealRandomAccessibleView< T > wrap( final RealRandomAccessible< T >
 	 *
 	 * @return a converted view
 	 */
-	default < U > RealRandomAccessibleView< U > convert(
+	default < U > RealRandomAccessibleView< U, ? > convert(
 			final Supplier< U > targetSupplier,
-			final Converter< ? super T, ? super U > converter )
+			final Converter< ? super T, ? super U > converter)
 	{
 		return wrap( Converters.convert2( delegate(), converter, targetSupplier ) );
 	}
@@ -139,9 +139,9 @@ default < U > RealRandomAccessibleView< U > convert(
 	 *
 	 * @return a converted view
 	 */
-	default < U > RealRandomAccessibleView< U > convert(
+	default < U > RealRandomAccessibleView< U, ? > convert(
 			final Supplier< U > targetSupplier,
-			final Supplier< Converter< ? super T, ? super U > > converterSupplier )
+			final Supplier< Converter< ? super T, ? super U > > converterSupplier)
 	{
 		return wrap( Converters.convert2( delegate(), converterSupplier, targetSupplier ) );
 	}
@@ -157,16 +157,16 @@ default < U > RealRandomAccessibleView< U > convert(
 	 *
 	 * @return {@code function.apply(this)}
 	 */
-	default < U > U use( Function< ? super RealRandomAccessibleView< T >, U > function )
+	default < U > U use( Function< ? super V, U > function )
 	{
-		return function.apply( this );
+		return function.apply( (V) this );
 	}
 
 
 	// -- RealRandomAccessible ------------------------------------------------
 
 	@Override
-	default RealRandomAccessibleView< T > realView()
+	default RealRandomAccessibleView< T, ? > realView()
 	{
 		return this;
 	}