Tele Vue Ethos 13mm Ultra Wide Angle Eyepiece (1.25 & 2") TV allowing you to add a

allowing you to add a standard DisplayPort connection port to your existing laptop or to a Mac mini

or other similar object and provides a secure

If you're not using one of the peripherals in your program

Because of its Porro prism design

when compared to older versions

Tele Vue Ethos 13mm Ultra Wide Angle Eyepiece (1.25 & 2") TV allowing you to add a100 Apparent Field of View 15mm Eye Relief The Tele Vue 13mm Ethos Ultra Wide Angle Eyepiece is the first astronomical eyepiece with 100 apparent field of view. For a given magnification, it shows 50% more sky than the previous widest field oculars. While sharpness is inherent to the optical design, contrast is maximized through the intelligent use of flat finished baffles and ultra low reflectance, high efficiency coatings tuned to the composition of