Vixen Polarie U Polar Axis Telescope PF-LII Set 35495

[Easy Operation for High-Precision Polarie U Setup] This set includes the PF-LII Polar Axis Telescope and the PU Polar Arm. Ideal for situations requiring high precision polar axis setup, such as when using a telephoto lens! By positioning the North Star and two nearby stars (a total of three) in the designated positions on the built-in scale, you can easily align the polar axis to within 3 arc minutes of accuracy. (For the Northern Hemisphere. For the Southern Hemisphere, align using the three stars in the Octantus constellation.) [Information Consolidated on the Built-in Scale, Easy Setup While Looking Through the Eye] The built-in scale consolidates the position information of the stars used for polar axis alignment, eliminating the need to read hour angle scales on the outside of the polar axis telescope in dark observing locations. Comfortable operation can be performed while looking through the field of view of the polar axis telescope. [Dark Field Illumination (with Auto-Off Function)] The built-in dark field illumination (red LED) can be easily turned on with the push of a button. Unlike bright field illumination, which brightens the field of view to make the scale appear as a silhouette, the scale itself glows red, so faint stars won't get lost in the background. The brightness is adjustable in 8 levels, so you can use it at your preferred brightness. It also automatically turns off (gradually dims) after 1-2 minutes, so you won't forget to turn it off after use. [Equipped with spare 3/8 inch screw holes] The included polar axis telescope arm PU is equipped with two spare 3/8 inch screws, so if you're not using the 1/4-3/8 inch conversion screws that come with the Polarie U, you can screw them into these screws for storage to help prevent them from getting lost.