The Sibley Field Guide to Birds of (Eastern/Western) North America: Second Edition

The Sibley Field Guide to Birds of (Eastern/Western) North America: Second EditionCompletely Revisited and Updated From renowned birder, illustrator, and New York Times best selling author David Sibley, the most authoritative guide to the birds of the East, in a portable format that is perfect for the field. Western Edition Compact and comprehensive, this guide features 715 bird species, plus regional populations, found west of the Rocky Mountains. Entries include stunningly accurate illustrations more than 5,000 in total with

easily fitting in carry-on luggage and perfect for grab-and-go situations

grit and polish you need to successfully polish one batch of stones

Features great capacities of high-temperature resistance and wear resistance

4 Accessories Included Finder 8x50 RACI Included Diagonal 2" Dielectric Mounting Accessories Rings/V-Rail Included Eyepieces 25mm LET/5 Planetary Magnification w/ Included Eyepieces 45x/180x Included Case Yes Corrector No (optional)

0005e- /pixel/sec Exposure Time Range 30us-3600sec Unity Gain 68 Shutter Type Electronic Shutter Computer Interface USB3

Lightweight Design with large Load Capacity

PWR: Input power status display

Filters for Direct Observation of the Sun

000 celestial objects with a tap of your phone

85") 58mm (2

making it the ideal mount for both seasoned astronomers and newcomers alike

it does not matter when you are using your telescope visually