SVBONY Eyepieces 4mm Telescopes Lens Wide Angle 62 Degree Aspheric Eyepiece HD Fully Coated Lens for 1.25 inches Astronomic Telescopes

Descripción

Product description SVBONY 1.25" fully coated eyepiece is perfect for broad field lunar observations medium sized star clusters and wide range of cloudy nebulas;deep sky targets New to star gazing and didn't know what you need to satisfy your needs;here is something can help you make an educated decision;things to consider: Make sure that you know your telescope and how to calculate the optimal magnification for the objects you wish to view;the magnification equation: Magnification=objective focal length/eyepiece focal length Typically,you do not want to exceed 2x per mm of your telescopes diameter or the images will be blurry;for example,your telescope's objective diameter is 80mm,The maximum magnification should not exceed 160x So research what the best magnification is for the objects you wish to view Package Include 1 X SVBONY 4mm Aspheric Eyepiece It's a great Halloween birthday christmas gift Previous page FMC glass optics increase light transmittance; Enhance details on jupiter; saturn; Mars; venus Lens edges is blackened and internal extinction thread reduces scattered light even further. Next page 1 FMC 2 Filter thread 3 Internal matting thread 1.25 inch Standard 1.25" 31.75mm fitting diameter, can be used in any astronomical telescope with a 1.25" focuser. Dust cover Both ends have dust caps for protecting the eyepieces. The lens covers are interchangeable and easy to use and keep in a pocket Watch the scenery; bright celestial observations;nebula; broad field lunar observations; medium sized star clusters; cloudy nebulas and deep sky targets; viewing the moon and planet and so on. Specification: Focal length: 0.16 inch / 4mm Field of view: 62° fitting diameter: Standard 1.25” (31.75mm) Eye lens diameter: 0.39inch / 10mm Coating: Optical lenses Fully coated: High-definition structure of optical system: Aspheric Eyepiece Weight: 1.48oz / 0.09lb / 42g Element: 3 Element 2 Groups

Características

• Focal length;0.16" 4mm;offer high magnifications;look more closely and more detailed at the moon's surface and other planet; for viewing the moon and planets
• Standard 1.25’’ 31.75mm fitting diameter;can be used in any astronomical telescope with a 1.25" focuser;for broad field lunar observations; medium sized star clusters;and a wide range of cloudy nebulas and deep sky targets
• Fully coated optics glass eyepieces for excellent image contrast and light transmission;give maximum detail and definition across the entire field of view;highly achromatic;planetary filters enhance details on Jupiter;Saturn;Mars and Venus
• 4mm lens only weighs 0.09lb; For lenses with the same refractive index; the 62 degree aspheric eyepiece is thinner and lighter than the spherical eyepiece;designed primarily for planetary observation;perfect for deep sky objects
• Wide angle; 4mm 62 degree aspheric eyepiece can get maximum detail and definition across the entire field of view; Anti-lost design; Eyepiece interface recess portion can prevent the loss;Applicable;watch the scenery;bright celestial observations; nebula and so on

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