It is an easy upgrade to the optical finders that are usually found on 4.5" and 6" reflectors and many refractors as it is a straight replacement,
using the same two protruding studs. The holes on the base of the finder are slotted so that they will fit from 21mm to 26mm across. Main be fit for Celestron 80EQ SE SLT PS Series and Meade Infinity and Polaris and so on Series Astronomical Telescope (Note: Meade Infinity Series:80AZ 90AZ 102AZ and Polaris Series: 80EQ 90EQ not applicable) This SVBONY seven-piece accessory kit enhances the performance of your telescope. Includes two 1.25" Plossl eyepieces, a 2xBarlow lens that can be used visually or photographically, three eyepiece filters and a Portable bag. Plossl 6mm eyepiece ideal for observing details on planets, the Moon, and other celestial objects. Plossl 17mm eyepiece is suitable for observing a variety of celestial objects, including star clusters, galaxies, nebulae, and even some planetary details. 2X Barlow scope provides 2X magnification for visual observation and astrophotography, magnifying more details of planets, the moon and other celestial bodies, thus enhancing the observation experience. 82A light blue filter. Planetary Observations: Especially beneficial when viewing planets like Saturn or Jupiter, where it aids in highlighting banding and storms. Lunar Observations:Enhances the details of craters and maria on the Moon's surface, providing a clearer view during observations. Moon filter. By decreasing brightness, moon filters improve the contrast between the illuminated and shadowed areas on the Moon's surface. This makes features like craters, mountains, and maria more distinct and easier to observe. Telescope accessory kits offer a variety of different combinations to suit different types of observations. Whether observing planets, the moon or deep space objects. This versatility makes the stargazing experience more enjoyable and engaging.