Astromania Alignment 1.25" Next Generation Laser Collimator 2" Adaptor for Newtonian Telescopes

Works great and user friendly. Has not lost its own collimation yet but when and if it does it is very easy to reset. I would buy again!

Es robusto, está bien acabado y bien colimado, genera un haz láser puntual y bien formado. Tiene una escala de 7 niveles de potencia, pero los primeros son débiles y muy parecidos entre sí y los últimos son potentes también muy parecidos entre sí, pero aun así hay suficiente variedad de intensidad donde elegir. Ha superado mis expectativas para su precio, es un instrumento bastante fiable e inimprescindible a la hora de comenzar cada sesión, en un par de minutos tengo mi telescopio "fino fino" Lo recomiendo

Got the item in good condition

Instrumento de gran utilidad q facilitó la búsqueda de todo

I bought this to align my 130mm Skywatcher I picked up on Craigslist. I found that the unit works just as described and I found it very easy to use. But then I calibrate microscopes for a living. I can't imagine that anyone couldn't figure out how to use this very simple calibration tool. I also can't imagine how you can use your telescope without knowing if its mirrors are aligned properly. My only gripe is I wish they would tell you in the instructions what type/size battery it takes. You can youtube all kinds of videos on how to use it.