I ran into the word ブレ when looking for cameras. But after searching I've also seen it in this usage. Like in here. http://metalpilldrums.cocolog-nifty.com/okazu/2011/12/index.html
Does this have to do with the "deviation" meaning as japandict says? https://www.japandict.com/%E3%81%B6%E3%82%8C
Like "やる事ブレない" is "To not deviate from what I'm doing."
Am I wrong?