I hunt deep hardwoods that are thick and block out the sun. Here in louisiana we have legal shooting times. In my property, you can hardly see approximately 30 before sunset and legal is 30 min after sunset. I've tried all kinds of optics and after talking to those in the know on this site, I picked up a SB polar. Definately alpha glass and wow, what a difference. I can know sit pass legal time without a problem. So in certain cases, like mine, the alpha glass was definately a plus.