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Celestron 2" 2.5x Luminos Barlow Lens # 93436
| Brand | Celestron |
| Part Number | 93436 |
| Availability | available |
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Product Info
Manufacturer Description
Celestron's 2" Luminos Barlow inserts between the eyepiece and a 2" eyepiece holder on the telescope and increases the magnification by 2.5x. It can be used with 1.25" eyepiece and 2" eyepieces. The 4-element fully multicoated lens assembly offers superb field flatness and minimal chromatic aberration.
Threaded to accept standard 2" (M48x0.75) astronomy filters. Includes one dust plug and one end cap. 2" nosepiece barrel features safety recess groove.
Product carries full 2 year Celestron factory limited warranty (within US/Canada only).
Specifications:
- Weight (with 1.25" adapter) = 10.2oz
- Weight (without 1.25" adapter) = 7.3oz
- Height (with 1.25" adapter) = 3.64" (92.4mm)
- Height (without 1.25" adapter) = 3.18" (80.7mm)
- Clear aperture = 1.18" (30.0mm)
Reviews
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Oct 25, 2018
The Substitute
Pros: Cons: Comments:After looking for a third higher power 2" eye piece to round out my set, this Barlow became an obvious choice. The quality was more than I expected at this price.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Oct 10, 20182" 2.5X BARLOW BY CELESTRON
Pros: Cons: Comments:It seems to give nice images, especially when used with a good eyepiece. I also like how short and light it is, and a good tool for astrophotography.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Jul 11, 2017Celestron Barlow 2.5
Pros: Cons: Comments:Using this Barlow with My Meade 5000 Eye pieces is easy, the locking screws work great, but put my GPS 2" 30MM and the moon becomes a new view
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Mar 31, 2017Celestron Luminos Barlow
Pros: Cons: Comments:This is an excellent Barlow--sharp, relatively light for its size (2") and solidly made. It does a great job of multiplying the power of a 26mm ES eyepiece without decreasing the 60 degree field of view. It may have increased the eye relief a little on a 10mm Plossel, too. The sale price made it a bargain!
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
jeremiah2229 Member
- Skill Level
- Unknown
- Time with Product
- Unknown
- User Notes:
- Review by Jeremiah2229 of Illinois.
Jul 24, 2015Well surprised...
Pros:Quality Lenses,Strong Construction,Easy to Use,Accurate
Cons: Comments:I purchased this with the Baader 8-24 Zoom III. When the Barlow arrived I was pleasantly surprised to find that it is indeed an APO Barlow. Wasn't expecting this since the discription omits it and assumed it would just be an Achromat. I wanted this and the Baader Zoom specifically to use together. It is a really nice combination and I prefer the 2.5x over a standard 2.0x. So far I have used this combo with an ES AR127 and XT8. Planetary observing is a real treat with these two pieces. I cannot speak of anything else since I am just currently observing planets. With the AR127 and the Baader on 8mm in the Barlow results in 258x. This gives excellent view of planets and there is room for more power though the AR127 should max at 250x. CA is absent to very, very little. With the XT8 and 8mm the magnification is 375x with the max for the scope at 400x. At 375x there is little room for more power and the observing is excellent. I can literally set for hours while observing planets and seems like there is always a treat just waiting for me. I have only used this Barlow and the Baader in 2" setup, have not tried 1.25". I do have a 2" 32mm SWA Agena EP that I use with this Barlow and they mate just perfect also. Very nice for cluster and galaxy viewing. Hope to get the Agena 2" 38mm SWA EP soon too. Though this Barlow is large I have had no trouble with balancing issues in the above scopes. If there is one problem it would be that I simply do not have enough EP's to use in this Barlow. ;-)
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Sep 6, 2014Best bang for the buck
Pros:Accurate,Strong Construction,Quality Lenses
Cons:25x Makes Math Complex,Power Makes Math Complex
Comments:After a few months and various tests on various setups, I can conclude that it's virtually optically flawless.
Bottom Line: Would you recommend this item? Yes
Used on a 102mm refractor, 90mm APO, 10" and 16" newtonians, C11 SC and 6" Ritchey-Chretien, we were unable to see any optical default.
Used with the 8-24mm Baader hyperion zoom eyepiece, we even concluded that the image is better with this Barlow than without it when pushing to the limits with tricky double-stars.
Silver-blue body is quite perfect, really practical to work in the night, and not prone to much dew. Black astro-equipment is a total nonsense as you don't see it much, and just pick up any humidity.
Bronze ring is not so perfect, and sometimes won't allow your eyepiece or T2 adapter to get out at the first try. It could also benefit from a second thumbscrew, this is easily done with a tap and die set.
The only bad thing about this barlow is how the uncommon 2.5x factor makes the math tricky, especially around 4am. For example easy things like calculating a 4mm eyepiece on a 1200mm newtonian come to a "300 x 2.5" answer.This review was provided courtesy of AgenaAstro.com
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Manufacturer Celestron
