Telescoping cylinders, also known as telescopic cylinders can be either single or double-acting. It included coil springs and hydraulic telescopic Koni shock absorbers. Tillers can further be extended by means of adjustable telescopic twist locking extension. The gunner had a rangefinder and a periscope telescopic sight. They are mounted in an optically appropriate position in the telescopic sight's tube. The receiver has a dovetail rail for mounting a telescopic sight. Some tanks had a vertically stabilised TOP-1 gun telescopic sight. Touring models use Big-Twin engines and large-diameter telescopic forks. The maximum aiming distance offered by the optical telescopic sight and iron sights is . None of the rifles were equipped with telescopic or infrared sights. Care for telescopic fishing rods is much the same as other rods. As one decreases the size of the aperture of a telescopic lens, diffraction proportionately increases. Telescopic rods are popular among surf fishermen. It has some telescopic sight attachment problems. The weapon doesn't necessarily have to be equipped with a telescopic optic.