Tele Vue 2x BIG Barlow 2" 65° FOV This cable is used to

This cable is used to adapt a serial cable into a cable that is compatible with standard USB ports

The Sky-Watcher Traditional Dobsonian Telescope 254mm/1200mm (10″) has a “paraboloidal” primary mirror to eliminate spherical aberration and a four-arm

especially if you live in a light-polluted area

During the day

Tele Vue 2x BIG Barlow 2" 65° FOV This cable is used toDescription TeleVue Barlows reduce aberrations to below the airy disc in an f 4 system and lay to rest the popular myth of the "degrading Barlow." Properly designed Barlows do wonderful things: They amplify power, slow the telescope's f # (improving eyepiece sharpness), and give designers the opportunity to compensate for eyepiece aberrations. Tele Vue Barlows use multi coated high index glasses for optimum aberration correction, exceptional contrast