Ranked Top 10 Compact Binoculars for Bird Watching, for Hunting and for Theater. Best Night Prism Birding Binoculars for West Marine and Astronomy Vision. 10x25 Binoculars for Kids or Children. Great Gifts Ideas for all ages Ruby Lens Optics offer crisp clear images with improved light transmission 10x magnification and 25mm objective diameter Strategically placed center-focus knob for easy adjustments Great for all outdoor and indoor activities