Reflection can be a good thing in life ... which can block or reduce light reflected at certain angles from the glass (or water or smooth nonmetal surfaces). The mount for the filter screws ...

Business Insider spoke with expert navigator Tristan Gooley, author of "How To Read Water: Clues & Patterns from Puddles to the Sea", about how the light reflections in water have hidden clues to ...

The greater the change of speed of light at a boundary, the greater the refraction. Light is bent more by glass than by water because glass is denser than water and so slows it down more.

For example, the photo below was taken through a glass showcase ... on the water, making it a little difficult to see what's below the surface. After processing with the Reflection Removal ...