I got to the gallery early this morning before we started our private workshop with a group of photographers from Charlevoix. I noticed air bubbles in the bottle of hand sanitizer on my desk. I used my telephoto macro lens and shot the photo at F57 so that I had great depth of field and could get as many of the bubbles as sharp as possible. F57.0 at 25.0, ISO 100, 105 mm macro lens at 105 mm