They're not very good, when I tried the first lens I was thrilled it seemed to work, but when I started trying other lenses using, I quickly came to the conclusion that there is not much difference between them.
π Nikon ACULON A211 8x42 Binoculars: High Quality Optics for Exceptional Viewing
15 Review
CISNO USB Digital Microscope: 2MP, 1000X Magnification, 8 LED, Windows-Compatible
25 Review
Enhance Your Stargazing Experience With Orion'S Premium Telescope Accessory Kit (1.25-Inch, Silver)
21 Review
Nikon ACULON 10 22X50 Binoculars Harness
12 Review