SVBONY Reticle Eyepiece 1.25 inches Illuminated Eyepiece 12.5mm Double-line Crosshair LED Illuminator 40 Degree FOV 4 Elements Design Telescope Accessory Guide Star

Very nicely made, brightness adjustment works well and the reticle is clear and visible. Make sure you insert the batteries with the right polarity, labelled flat side out when you insert them. Eyepiece even has a focus adjustment.

For what I paid for this Svbony reticule EP, I reckon I got more than my money's worth. The build for the laser seemed a bit iffy but has proved to be durable enough. The eyepiece is a strange one. The crosshairs are perfectly placed and illuminate as they should but I found myself regretting their presence. For a time this was the best EP I owned at this focal length and the crosshairs were a bit of a distraction. Still, now it sees regular service aligning my GoTo mounts and dialling in the various finders I use. Functional, accurate, and affordable.

The product that I received had a little problem. The illuminator did not fit the lens body properly. The seller took proactive action and reached out to me first and worked very hard resolve the issue. The replacement I received did not have any problem and it works very nicely. However, after not using a few month when I tried to use it agina, the light came on and off. I thought it was the battery, but replacing the batteries did not solve the problem. I took it apart to find out what is causing the problem. The problem was faulty wiring as in the attached picture. The wire was soldered very poorly and it worked only when it was touching the soldering point. It is still covered under warranty. I hope they can would honor the warranty. When it worked, it worked really nicely. I use this eyepiece to align my telescope with stars. The double line cross-hair works very nicely. It increase accuracy of goto functionality of the telescope and alignment accuracy of the finder scope very much. == update ======= The seller (Retevis direct) replaced the unit at a small fee honoring the warranty. It is great customer service experience. Thank you again.

Used in a finder making it much easier to center an object

I needed a cross-hair eyepiece to better center my scope when doing alignments. I bought this knowing there is a strong relationship between cost and quality in eyepieces. There are higher-quality eyepieces that have the same function. It was within my budget at the time. So I took the risk. This eyepiece does what I originally needed it to do. I have since used the eyepiece to view the moon and was pleasantly surprised at the clarity. Any upgrade will have to have value well above the value of this one.

The product came very slowly by mail from China. I needed this in addition to my Meade Plossil which has adjustable illuminated cross hairs to use with a finder scope. I did not need the cross hairs to be adjustable, so this fit the bill. However the focus for the cross hairs is implemented by unscrewing the front objective, and the threads are very, very sloppy. More like tapered pipe threads. It caused the objective to wiggle from side to side as if it were about to fall off. I "fixed" this by wrapping several turns of teflon tape around the threads to fix this shortcoming. The illuminator is adjustable, which is very helpful and works well, though here too the threads for the battery compartment are anything but smooth. No comparison whatsoever to the Meade product.

I use this for star alignment on my SyncScan system. It is easy to use and make alignment a breeze. I do have some slight issues on losing sight of the star as I'm slewing, but that might be because I move my head or something.

I purchased this for the sole purpose of aligning my push-to computerized telescope at the start of a viewing session. It should serve well for any other visual alignment related needs with a telescope. The crosshairs light up well, and you can adjust the brightness with a twist of the knob at the end (which also turns the light on and off). You do need to focus the eyepiece to see the crosshairs clearly, but this is easily done by spinning the top of the eyepiece until the crosshairs are sharp in view. The value on this eyepiece is great for me, as other crosshair / reticle eyepieces sell for almost twice as much. It spends relatively little time installed in my telescope, as it goes back in the case once I've aligned my telescope for the night. Stars focus as clear points of light, and that's all I need.

Excelente producto, calidad superior, bonito diseño y color, llegó super rápido, gracias!!!!!

Lens quality great, illuminator very good design with ability to see object through crosshairs making centering a breeze

Por el momento le encontré dos usos muy útiles: 1) alineación más precisa con el finder y 2) para la puesta en estación ayuda mucho con los sistemas GoTo para calibrar el apuntado de estrellas de referencia.

The screw thread on the light housing doesn't match the thread in the body of the eyepiece. So it doesn't really fit properly although it still basically works. Also there no battery guide to show which way to install them meaning some trial and error to get it working.

Es un gran producto, tiene buena calidad y costo muy competitivo. Bastante simple de usar y ajustar, tiene enfoque de la retícula y selector de intensidad de la iluminación en la retícula. Un elemento imprescindible a la hora de obtener una buena alineación tanto en monturas GoTo como Ecuatoriales. Completamente recomendable.