Cylindrical domes have the most optimal design for the shutter-to-dome diameter ratio, convincing us to recommend it as the first choice for the dome type. IPTEC Sky Gate series have three sizes with an inner diameter of 4.2, 6.2, and 8.2 meters. The shutter of these dome series is symmetric crosswise slider type with an aperture of 1.5, 2.1, and 2.7 meters (with respect to the size of the dome), which is about 35 percent wider than shutter of spherical domes. The angular aperture range is from 0° to 111°, which allows the telescope to observe from horizon to zenith. Using a gear type power transmission, along with a powerful servo motor, allows the dome to rotate with high precision (0.01°) and at very low speeds for having simultaneous motion with the telescope. The shutter power transmission system is a type of lead screw that opens and closes the shutter completely in less than a minute.