I was shooting the sun in Calcium-K when I noticed this bright outflow from active region 3373. It wasn't there for the whole session. Just in a couple of AVI videos. I've been looking online and it seems to correspond with a class M solar flare, but I'm not positive I'm right about that.

This was taken with a 100mm Lunt solar scope and a Calcium-K diagonal filter wedge. The camera is a QHY183C.

Very little. Sharpened it a bit.