user21907: In Star Wars: A New Hope, right before the Millennium Falcon exits hyperspace, we see a "tunnel" through which the ship is traveling:

How did ILM create this effect in 1976?

NOTE: I am not referring to the "stretching star lines" effect shown when a ship enters or exits hyperspace as detailed by John Dykstra in a 1978 interview with the Fantasy Film Journal. I am specifically referring to the blue tunnel effect seen while the ship is still in hyperspace.

user23310: Although it looks like a slit-scan effect similar to the Tom Baker era Dr. Who titles, in this case, the effect was very simply made with mylar - a reflective plastic.  Due to time and budget constraints, there wasn't much they could do, so they made a tunnel out of mylar and flew the camera through it.  They apparently had a lot of mylar left from making the reflective background behind the starfield.

21907: <p>In <em>Star Wars: <strong>A New Hope</em></strong>, right <strong>before</strong> the Millennium Falcon exits hyperspace, we see a "tunnel" through which the ship is traveling:</p>

<p><a href="https://i.stack.imgur.com/Z2HcQ.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Z2HcQ.gif" alt="The Millennium Falcon in hyperspace"></a></p>

<p>How did ILM create this effect in 1976?</p>

<hr>

<p><strong>NOTE:</strong> I am <em>not</em> referring to the "<em>stretching star lines</em>" effect shown when a ship enters or exits hyperspace as detailed by John Dykstra in a <a href="https://ia800606.us.archive.org/11/items/Fantasy_Film_Journal_01_Winter_1977-78/Fantasy_Film_Journal_01_Winter_1977-78.pdf#page=11" rel="nofollow noreferrer">1978 interview with the Fantasy Film Journal</a>. I am specifically referring to the <a href="https://www.youtube.com/embed/JGp_5gOww0E?start=0&amp;end=3" rel="nofollow noreferrer">blue tunnel</a> effect seen while the ship is still in hyperspace.</p>
 23310: <p>Although it looks like a slit-scan effect similar to the Tom Baker era Dr. Who titles, in this case, the effect was very simply made with mylar - a reflective plastic.  Due to time and budget constraints, there wasn't much they could do, so they made a tunnel out of mylar and flew the camera through it.  They apparently had a lot of mylar left from making the reflective background behind the starfield.</p>
