There claim about being able to see the eagle in the picture w/ the glasses is crap, you can see the eagle w/ or w/ out the glasses and it doesn't enhance the picture at all. I have attached the eagle pic w/ the use of the glasses and w/out and as you can see NOTHING changes. Not only do they not enhance the eagle pic, they DO NOT enhance your view or block the glare from the sun. DO NOT spend money on Tac Glasses, they are a complete RIP OFF!!!