Performing STEM alignment using the Ronchigram

So what is this thing called a "Ronchigram" anyway? Hello, fellow microscopists! I previously uploaded a video about using the Ronchigram for STEM alignment. However, I thought it was a bit lacking and I could've done a better job, so armed with a new microphone, I made a new (and hopefully, more helpful) version of the video complete with an added voice over (the old video has been removed). Plus, I also answer that all important question: "What is a Ronchigram"?

The live Ronchigram video was recorded using the video capture feature of a Gatan Orius SC200B bottom-mounted digital camera and the S/TEM used was a JEOL 2010F; however, the alignment process described in this video is basically the same for any S/TEM.