Celestron 93434 23 mm Luminos Eyepiece, Silver/Black

Really a fantastic eyepiece. Going from the stock, 1.25" EPs to this was very cool. This thing is as big as -- and solid as -- a grenade! Make sure you balance your OTA with it on before you use it. Best with a quality diagonal, of course. (I use a Celestron, Dielectric Star 2" on a C9.25 SCT.) Very minor, but still a bit disappointed that Celestron still prints on the box that the 19mm is a "1.25" Eyepiece." (Come on guys! It is definitely a 2" EP.) Ugh. Oh well, definitely worth it! Clear skies!

What can you say about Luminos eyepieces? First impression, they are big and heavy. Lots of glass and metal that could put you over the limit on your mount if you are already close, but so worth the view! I now own the 31mm, 23mm, 19mm, and 15mm Luminos eyepieces. For the money they are a great value, exceptionally builtwith outstanding wide, clear, bright views, and convenient features like the adjustable eyecup. Luminos is not TeleView good, but what is? Luminos holds it's own at its given pricepoint and is a great value. Using with a Celestron CPC 925 Edge HD.

Just got my new 8'' SCT Celestron in and put this eyepiece in to look at the moon and wow very nice. I had no trouble seeing the craters.

The wide field of view, crisp optics and comfortable viewing (exit pupil) make this eyepiece a please to use. Good value.

31mm is bright, just like the name says. Planets are also bright. The wide angle allows you to observe objects longer, if you don't have a tracking computer.The 31mm, In my opinion, allows you to find an area if interest, before switching lenses. Use the luminos 2.5 barlow, and you're using a 12.5 lens with 27mm eye relief.As with all science and observation, questions should start forming in your mind. Why are some craters very bright? How high are those crater ridges? What are the bright lines extending from the crater?Keep in mind my picture is from a newtonian telescope, and is not how it appears in the night sky.I highly recommend the 31mm and 2.5 barlow luminos lenses

I recently added a 2" Dielectric star diagonal to my C8, after seeing a gorgeous view through a neighbor's scope. When I looked in his 2" eyepiece, it was like looking through a spaceship window instead of the pinhole view I was used to with my 1.25" EP. Your eyes will thank you for it. I chose the Celestron line of 2" eyepieces due to their affordability, good reviews, and my overall comfort with the brand as a novice astronomer. I couldn't be happier. The 23mm EP, in conjunction with the new diagonal, provided a wonderful view the Orion Nebula on my first viewing. Although Jupiter was bright and sharp, as well, I found that my Celestron 8-24mm 1.25" EP offered a similarly good image. The retractable eyepiece is a nice touch, although I find it harder to get a full view with it fully raise. In most dark environments, I probably will not use it. The build quality of the eyepiece is impressive. It's stunning to look at in person. What surprised me most was its size and weight, Sure, the specs listed the weight before purchase, but I didn't realize what it would feel or look like in my hand. Overall, I feel like I made a great choice for my first 2" eyepiece, and I have already begun adding more.

My go to eyepiece.

Pedí 3 medidas de esta serie Luminos 7mm, 15mm y 19mm, los cuales me hacia mucha ilusion tener, todos llegaron con signos evidente de uso, sucios y con defectos. Cuando revise pude notar que la aberración cromática en el ocular y la curvatura del campo aparente que solamente era nítido en el centro del ocular, en los bordes se hace un arco de luz roja y los objetos celestes se difuminan cerca del borde del FOV, todo esto hizo de este ocular una pieza de la cual me sentí decepcionado, esperaba mucho más de Celestron. Además creo que también su diseño estuvo pensado para los telescopios Schmidt-Cassegrain así q si tienes un Dobson f/4 como yo, no creo que funcione. Espero que retiren la serie pues ni remotamente puede llamarse premium.