SVBONY SV131 1.25 Plossl Eyepiece 4-Element Design 48-Degrees Field of View Standard 1.25-inch Filter Threaded SVBONY SV131 1.25 Plossl Eyepiece 4-Element Design 48-Degrees Field of View Standard 1.25-inch Filter Threaded Field of View: 48 2 Sets of 4-piece Optical Structures FMC Broadband AR Coating Stray Lights Elimination Specification: 6mm/12mm/17mm/25mm/32mm/40mm Standard 1.25-inch Filter ThreadM28.5*0.6 Standard 1.25 inch Plossl eyepieces can be used in any telescope with a 1.25 focuser, making them great forobserving the moon, planets, and deep sky objectsespecially when seeing conditions are good. Field of View: 48 This 48Field of View is wide enough to be generally comfortable for viewing and makes this eyepiece ideal for a variety of observational purposes including deep-sky and planetary viewing. Standard Plossl eyepiece structure: 2 sets of 4-piece optical structures Plossl eyepieces correct color and spherical aberrations very well and provides a flat field, which means the objects that you look at are not fringed in color and distortions will not appear on the edge of the field of view. FMC Broadband AR Coating The Broadband AR Coating vastly improves the efficiency of the optic by increasing transmission, enhancing contrast, and eliminating ghost images. And also makes the eyepiece durable, with resistance to both physical and environmental damage. Stray Lights Elimination These improve the efficiency since lesslightis lost due to reflection and improve thecontrastof the image by elimination ofstray light. Foldable Rubber Eyecup Astronomy Photography How to choose eyepieces? 2 mm - 4.9 mm Eyepieces These provide very high magnifications and work best on long focal length refractorsand Schmidt-Cassegrains. Unless you have very steady seeing conditions, this range more than likely will produce too much magnification for other telescope types. 5 mm - 6.9 mm Eyepieces These make good planetary detail and double star eyepieces for long focal length telescopes and will work satisfactorily in shorter focal length telescopes with steady seeing conditions. 7 mm - 9.9 mm Eyepieces Ideal high magnification eyepieces for shorter focal length telescopes and serve as good planetary, double star, and lunar detail units. 10 mm - 13.9 mm Eyepieces Good to use across all focal lengths and offer great background darkening capabilities for studying planetary nebula, small galaxies, planetary details, and lunar details. 14 mm - 17.9 mm Eyepieces A great mid-range magnification for all focal lengths and helps resolve globular clusters, galaxy details, and spot planetary nebulae. 18 mm - 24.9 mm Eyepieces Works nicely on long focal length telescopes to show wide field and extended objects. Shorter focal length telescopes will enjoy great mid-range magnification of galaxy clusters and large open clusters. 25 mm - 30.9 mm Eyepieces Longer focal lengths are good for large nebula and open clusters. Shorter focal lengths are great for large objects such as the Orion nebula, views of the full lunar disc, large open clusters, and more. It also makes for good locator eyepieces in all focal lengths. 31 mm - 39.9 mm Eyepieces These are well suited for shorter focal length telescopes for extended views and large, starry fields. 40 mm Eyepieces These are exclusively the domain of shorter focal length telescopes. This magnification range is superb for showing large, starry vistas as well as extended nebulae with star fields, etc. Buyers Show Saturn, Jupiter and the moon with a Celestron Powerseeker 114eq telescope Camera: sv205 for planets Camera for the moon: moto G8 power with an eyepiece support and a svbony 32mm plossl eyepiece. Processing app: Pipp, autostakkert and registax6. Author:Micael Mike