SVBONY Reticle Eyepiece 1.25 inches Illuminated Eyepiece Bundle with Telescope Eyepiece 40mm 40 Degree Apparent Field, for Astronomical Observation

SVBONY 12.5mm illuminated eyepiece features double crossline reticle; for accurate polar positioning and long-exposure photo-guiding when using with off-axis guiders for centering and guiding of stars. Double crosshair design, can easily align the target object. Helps locate and center stars well;also fits for guiding astrophotos when used in off-axis guiders or guide scopes; Notice deviation of the positioning easily;so that guide star and reticle appear in ideal sharpness and definition. Adjustable red LED light brightness control to illuminate crosshairs and preserve night vision, you can twist the knob to meet your different requirement. The SVBONY super 1.25" 40 mm plossl eyepiece engineered with 4 element design and offers a generous 40 degree apparent field of view. It is awesome for perusing the sky and finding things like constellations, clusters, and galaxies in the field of view. The field of view of the highly achromatic lens is more realistic, allowing you to see more details. The built in rubber eye guard enhances viewing by helping to block out ambient light and position no introduction of additional color for higher magnification;highly achromatic 1.25 telescope eyepiece; Effectively reduce chromatic aberration and improve imaging clarity. enhance the details of planetary filters.It can be removed for eyeglass wears and astronomy photography.

• 12.5mm Plossl eyepiece with red LED illuminated double line crosshair reticle;it's idea for measuring double star angular separations;position angles;planetary diameters and lunar crater diameters
• Steplessly adjust the brightness of dual crosshair reticle;rotate switch on the side to put it on;shut it off and adjust the brightness
• SVBONY 40mm Plossl eyepiece is engineered with 4 element design and offering a generous 40° apparent field of view; perfect for broad field lunar observations; medium sized star clusters; provide a wide range of cloudy nebulas and deep sky targets
• Fully multi-coated lens telescope eyepiece with all black interior design; no introduction of additional color for higher magnification; highly achromatic; enhance details of Jupiter; Saturn;Mars; Venus and planetary filters
• 1.25” telescope eyepiece; standard 1.25" barrel for any 1.25'' diameter telescopes and telescope accessories; M28.5x 0.6 filter thread for 1.25inch filter; 1.25'' astronomy filters and fold down rubber eyeguard for comfortable viewing as well as blocking stray light