I just got a new laser from eBay which is a 405nm laser. When I first turn it on it wasn't a dot. I had to focus it for it to at least look like a dot but still doesn't look like a solid round dot. Are purple laser supposed to do this? Is something wrong?
Without any focusing it look like a rectangular, oval ish shape.
https://imgur.com/gallery/a34Ly
Without any focusing it look like a rectangular, oval ish shape.
https://imgur.com/gallery/a34Ly