Cabelas Alaskan Guide 10x28 are around 200$ and are great quality and are small and lightweight. Have had mine for about 4 years now. I hunt farmland in Michigan's thumb area and can spot a rack easily at quite a distance. The right optic is a diopter which adjusts in increments. Just close your right eye and adjust the left eye with the top focus. Then close the left eye and adjust the diopter for your right eye. Than slightly adjust top focus with both eyes open. I will leave the woods and go back to the truck if I forget them. Cambo1