Svbony 12.5mm Illuminated Reticle Eyepiece 1.25" - Rother Valley Optics Ltd Fully multi coated anti reflection coated lens delivers bright high contrast image. Both eyepiece barrel and LED Illuminator are made of high quality metal for sturdy construction., 12., 5mm plossl eyepiece with an illuminated double crossline reticle; excellent for accurate polar alignment and acquiring and centering of guide stars for guided astrophotography pursuits Brightness Adjustable The brightness of the double crosshair reticle is adjustable so you can twist the knob to meet your different requirement. Telescopes For Astronomy Adult Svbony SV131 Eyepiece Telescope 1.25 Inch, 32mm Eyepiece Plossl 46 Degree Field Of View Lens FMC Telescope Accessories For Planetary Observation 12.5mm Eyepiece Red LED-illuminated double-line reticle with a high-contrast 40°field of view; 12.5mm focal length and 11mm eye relief forcomfortable observing experiences; Fully Multi-coated optics & Blackened inner wall ensures high light transmission; The eyepiece is powered by 3* Cell battery, and the Illumination is adjustable Multi coated lens and 4 elements plossl design for excellent color correction and sharp image Double crosshair eyepiece Double crosshair design, can easily align the target object. 10 Best Illuminated Reticle Telescope Eyepieces For Astrophotography Svbony Vs Competitors 40 degree apparent field of view makes acquiring and centering target objects a breeze; 11 mm comfortable eye relief for comfortable long time viewing without tired , Standard 1., 25 eyepiece; suitable for any standard 1., 25 telescopes filters and other astronomical devices; inside threaded design can well decrease the reflection of internal stray light