Celestron 93436 2 Inch Luminous 2.5X Barlow Lens, Silver

An important rule to remember: When it comes to adding anything to your optical path in astronomy, don't shop "on the cheap". You will be sorely disappointed with the results. If you can afford a Televue, do it. If not, the Celestron Luminos is the best bang you can get for your buck. 4 elements. This thing is not only gorgeous for visual observation, but it's outstanding for astrophotography. Strongly recommended.

Construction excelent. Performance still unknown, while waiting for clear skies

Muy buena visión

Truly what I wanted. Have an 8 inch Dobsonian and a 28mm deep view lens, great light capture but always wished I could get in closers with a 2 inch eyepiece. The 1.25 isn't as enjoyable for me.. of course I was worried about losing light and increasing distortion as those of you reading this are too I'm sure... let me put you at ease, this is amazing. Truly amazing. Turned it on onions belt and got perfect views of the nebs on the sword. Great close ups of jupiter, perfect clarity, perfect flattening across the lens with no awkward edge distortion. I was really happy with tonight's stargazing and this has definitely been the purchase I hoped it would be. If your on the fence, buy it. If your not even in the market for thos.. buy it. Just buy it. You won't be dissapointed.

First night out, I paired this with a University Optics plossl 55mm & a Meade 5000 UWA 20mm.The results were great! This mid-range barlow has a quality 5 element design so it has nice color correction for the price. Because it is a 5 element design, it provides some field flattening effect to my 13" dobsonian, Without me having to buy a paracorr :D

WARNING‼️ some of your non Celestron eyepiece lens will touch Barlow lens. I got this yesterday and it’s going back today. Thankfully, I read some reports from you guys and this I found that most of my eyepieces Hit the glass. Thankfully, I put the first piece in so slowly, and it actually looked like it had seated all the way. When in actuality, it was less than a millimeter from seating so it would appear that it was seated, but it was actually resting on the glass and as I slowly wiggled it, it circled around wobbling around I should say because it was touching lens to lens. Wow that was a close call. Had I just drop it in both would have been ruined. I then proceeded to grab a couple of other pieces and found the same results. it’s very nice and it’s very light. I was so excited when I first held it in my hand. Sadly, it is not compatible with my collection.

I bought the celestron 2.5x barlow to do some planetary work. I looked over a number of reviews and have to disagree with them on several points.Weight - the barlow is not heavy. weight is similar to a typical eyepiece if not lighter.Build quality - quality is quite acceptable. I would call it good.Exterior - is polished, metal with a rubber friction ring for grip and handling. I prefer a dark exterior but that is just my preference.Style - fits in with the other Celestron Luminos equipment. I would rather a simpler style but this is what is available.Optically - acceptable, clear images, not distorted.The telescope, eyepiece and equipment you use with this will certainly factor in to the optical performance. I am using a high quality triplet refractor with good 2" eyepieces.There are better barlow lenses out there but at a higher price point.So in summary, At this price (i got a discount) i consider it a very good buy, and certainly acceptable for my uses.

Product arrived a day in advance!!!! High quality build . I would use it tonight, but we have cloudy skies. This 2" BARLOW will help me with my telescope eye fatigue.