The only issue I'm seeing with it is that shutter speed doesn't actually increase exposure time. You can see this in the flames. The flames do not become longer

The only issue I'm seeing with it is that shutter speed doesn't actually increase exposure time. You can see this in the flames. The flames do not become longer, and the ember's flame lines do not trail more when going up at 1/1000 shutter speed and 1/4. There should be some visible blur on them. Otherwise, it's kinda neat :)