| Question: | Can I use this Barlow eyepiece in conjunction with the Zoom lend Celestron 93230 8mm/24mm on the Celestron First scope? The Zoom eyepiece works great |
| Answer: | I do. I love the zoom lense because I can find what I'm looking for easily. Coupled with the Barlow you can get in a lot tighter on the planet, for example. It's a lot easier to see the rings of Saturn with zoom lens and the Barlow put together. It does make my Celestron Travelscope more prone to tipping over, however. |
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| Question: | Will this work with the Celestron Travel Scope 70 ?? |
| Answer: | Yes, but it is overkill. There is no magic that will make your $90 telescope into the Hubble Space Telescope. A simple word of advice here: buy a better telescope before investing any more in this one. Do not expect much more that 100x magnification from this telescope, no matter what you may add to it. |
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| Question: | Is 3x barlows work with Celestron 21035 70mm Travel Scope? If it is too much for my travel scope, should I use 2x barlows to focus properly? |
| Answer: | It might work, but you may need better eyepieces, and a stronger tripod. You may have to put the Barlow between the scope and diagonal - I think this is generally true for Refractor scopes, and you may need a longer Barlow (maybe ask Celestron - sometimes, you can't focus these scopes with a Barlow). I have a 3x Barlow on my kids' cheap Meade refractor, and it's longer and plastic, but it works fine (they use a 25mm low-power EP with the Barlow, which is the equivalent of using a 8mm EP, but that's enough power to see tons of craters on the moon, Jupiter's stripes and moons, and Saturn's rings). Their Barlow came with the scope, but no instructions to put it in between the scope and diagonal, not between the diagonal and eyepiece (this is unlike SCT and reflector style scopes). The weight of this Barlow lens (and most semi-decent eyepieces) is probably the bigger issue, as it might be too heavy for the plastic focuser, and will definitely throw off the balance and weight limit of your tripod (if it doesn't just fall over, the tripod will have a harder time holding steady, and the focuser might bend or break). Still, can't hurt to try. Just buying a couple of decent, but relatively inexpensive Plossyl eyepieces (like from Meade's 4000 or 5000 series), will really make a difference, as it's the eyepieces that are the weakest part of budget scopes (that, and the tripod, of course). The 5mm high power one that came with my kids' scope was total junk. Most semi-decent "cheap" eyepieces cost more than your telescope. It's fun, but not a cheap hobby, if you really want to enjoy it. Spend your money on better eyepieces, and keep them for when you're ready to buy a nicer scope. The best objects in the sky, like nebulas and DSO's, don't require much magnification - they require more light (from a bigger diameter scope), but the planets are best w/high magnification, and your inexpensive refractor can give you crystal-clear views of Jupiter and Saturn, even under polluted skies. Wide view, low-power eyepieces let you see a bigger section of the sky - I often use low power EP's to find planets, and then I put in the Barlow or high-power eyepiece to see a close-up view. I'd get a nice wide angle low mag EP (25mm) for viewing star clusters and the Orion Nebula (maybe a few bright DSO's), and one high mag EP (8-10mm) for viewing planets and the moon. If you also get a Barlow, it's like doubling your EP collection. FYI - Your scope's maximum magnification is 165x. Scope's focal length = 400mm. Magnification = Magn. power of Barlow x (Scope's focal length/focal length of eyepiece). So, using a 10mm EP and a 3x Barlow, you get 3(400mm/10mm) = 120x, which is good for viewing planets and the moon. Magnification and brightness have an inverse relationship. The higher the magnification, the lower the light, so it's better to see stars and nebulae, which are dim, w/low power "wide angle" eyepieces, and save your high-power viewing for the planets and moon.
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| Question: | does this fit the celestron nexstar 4se? |
| Answer: | Yes, it does fit, but the real question is whether or not it will work with any specific eyepiece. We suggest that you limit that telescope to no more than 250x magnification. Do not use that Barlow in the NexStar 4SE with an eyepiece having less than 11mm focal length. |
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| Question: | Would this work with a 6se and a william optics binoviewer w/ 2 20mm eyepieces & 1.6x barlow nosepiece e-bino-p |
| Answer: | That combination would yield 360x magnification, which is beyond the practical limits of your telescope. You might stand a fighting chance without the 1.6x Barlow in the stack. Keep in mind that that Barlow is supplied primarily to allow the binoviewer to achieve focus in a refractor; you would not need to use it with your SCT.
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| Question: | will this be effective with an Astronomers without Borders OpenSky telescope or is it overkill? |
| Answer: | The quick answer is Yes, it would be effective. I believe that out of the box the AWB OneSky Telescope comes with a 10 and 25mm lens. This Barlow lens will allow you to double your lens magnification for each essentially giving you roughly an additional 2 lens with one purchase. Be mindful that this Barlow is a 1.25" lens, ensure that you are buying the correct lens size. Enjoy your purchase it has proved helpful to me with my Celestron 8SE Telescope. Thank you for asking!
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| Question: | I have the Orion SkyQuest XT8. I am unable to use this lens; the image is very blurred and I am unable to focus. Is it meant for the XT8? |
| Answer: | What eye piece size are you using? It you are going to low, <10m, the magnification with this barlow might be exceeding what the scope can handle. You might also need to get an extender to move the eyepiece further back slightly, this might fix the focusing problem. One thing you can try is not inserting the eyepiece all the way into the Barlow. Holding it in place with your hand then trying to focus. If you can focus that way then you do need to get an extender.
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| Question: | does it fit with Celestron 21024 FirstScope Telescope? i wanted the |
| Answer: | Yes it will fit telescopes with 1.25" eyepieces. |
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| Question: | Hi, what is difference between XCEL, 9mm and 25mm? Which one is better? Are they ok on my astromaster AZ70? Thanks |
| Answer: | Yes and no. Let me explain. It will double the magnification of your existing eyepieces, up to a practical limit of about 250x for this telescope. Combining it with the 25mm eyepiece supplied with the telescope will yield 100x magnification, which is useful.
The "no" side of this answer is that you could do better just buying another eyepiece for the same amount of money. Consider the X-Cel LX in either 9mm (139x) or 7mm (179x) as a better alternative.
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| Question: | i wanted to know if this came with any permanent protective gear such as lens covers or even a small case. thanks for the feedback. |
| Answer: | It has lens covers front and back but no case. |
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