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Celestron

Celestron - Zoom Eyepiece for Telescope - Versatile 8mm-24mm Zoom for Low Power and High Power Viewing - Works with Any Telescope That Accepts 1.25" Eyepieces

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Style: Eyepiece


Features

  • POWERFUL ZOOM EYEPIECE FOR TELESCOPES: Go from low to high power in an instant with this versatile eyepiece. Zooms to any focal length between 8mm and 24mm. Pick the best magnification for your subject.
  • LOW POWER OR HIGH POWER? YOU CHOOSE: Instead of adding lots of expensive fixed focal length eyepieces to your collection, you can buy one eyepiece and experiment with a variety of focal lengths. Spend less time switching eyepieces and more time stargazing!
  • WORKS WITH ALL TELESCOPES THAT ACCEPT STANDARD 1.25" EYEPIECES: This versatile zoom eyepiece works with any telescope or spotting scope that accepts 1.25 astronomical eyepieces. Its also threaded to accept 1.25 filters.
  • FULLY MULTI-COATED OPTICS: Every lens surface is coated multiple times with Celestron's unique optical coatings to improve color and contrast and maximize brightness.
  • UNBEATABLE WARRANTY & SUPPORT: Buy with confidence from Celestron, a leading telescope brand in California since 1960. Your purchase includes a 2-Year US Warranty and unlimited support from our team of US-based experts.

Description

The versatile Celestron 8-24mm Zoom Eyepiece is a premium, fully multi-coated 1.25" eyepiece that allows you to dial in the power you want. The 8-24 Zoom Eyepiece is easy to adjust to four different focal lengths, each providing a different magnification level—8mm, 12mm, 18mm, and 24mm. Simply grip the rubberized barrel and turn it slowly as you look through the eyepiece. Start with the lowest magnification (24mm) to locate objects quickly and center them in your telescope’s field of view. Then increase the power for an up-close look. Zoom eyepieces save you money and time by allowing you to examine objects at various magnifications without purchasing and swapping out multiple eyepieces. The folding eyecup is great for observing with or without glasses. The field of view (40 - 60°) works well for land- based viewing as well as studying the Moon, planets, and deep-sky objects. The Celestron 93230 8 to 24 millimeters 1.25 inch zoom eyepiece allows you to zoom instantly with your scope from 8x magnification to 24x magnification. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer The Celestron 93230 is a super-premium fully multi-coated 1.25-inch zoom eyepiece with a focal length of 8 to 24 millimeters. It allows for expanded magnification options, and also features a 40 to 60 degree field of view and 15 to 18 millimeter eye relief. Celestron offers a 1-year warranty. See more

Brand: Celestron


Model Name: 8-24mm Zoom Eyepiece - 1.25"


Optical Tube Length: 8 Millimeters


Eye Piece Lens Description: Fully Multi-Coated


Objective Lens Diameter: 24 Millimeters


Telescope Mount Description: Altazimuth Mount


Focus Type: Manual Focus


Item Weight: 0.13 Kilograms


Compatible Devices: Telescopes with 1.25" eyepiece holders


Lens Coating Description: Fully multi-coated


Product Dimensions: 4 x 1 x 1 inches


Item Weight: 4.6 ounces


Item model number: 93230


Is Discontinued By Manufacturer: No


Date First Available: June 17, 2003


Manufacturer: Celestron


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

    • Awesome, but....
Style: telescopes
I purchased this in April 2011-after the March Supermoon and it quickly became my primary eyepiece! AFOV is wider than my standard MA (Modified Achromat) eyepieces and the wide exit pupil allows for an easier stance over whatever telescope I am using at the time of viewing. I will admit that while adjusting the zoom the view would often show some distrortion, but, in the beginning, I was able to spin the zoom function back and it would self correct. Over time, that 'self-correction' stopped unless at either stop (8mm or 24mm focal length). Problems: 1) See above for distrortion issues. (Mine may have passed QC by mistake). 2) Weight. Small, beginner scopes are impacted severely. Most impacted are refractors, as they 'balance' on the mount. 3) No clicks during focal length. Must turn on light to see where length is. 4) Overall EP assembly gets loose. I needed to tighten the chrome sleeve to the body of the assembly every time I used it. 5) Mine cracked during use on a cold night? The focus changed and the view went distorted. No visible broken glass, but, something went loose (I can hear it when I shake the EP!) With these things noted, I must say that while it worked- it worked great. I'm not sure if all of the glass was mutli-coated because I did get quite visible reflections- but, the view was clear with a nice big exit pupil. So large in fact, I was able to use a high quality, multi-coated (multi lens) 3x achromatic Barlow lens with it- creating very crisp lunar views under exceptional seeing conditions. However, that only worked on my largest GOTO scopes: a 90mm refractor & 114mm reflector-both of which needed to be balanced with all of that weight mounted. Anything smaller was at risk of toppling over and could not be locked down hard enough to bear the excessive load. So, if you have a smaller manual refractor, say 60mm, 70mm or 80mm or even a smaller manual reflector- make sure that your mount will bear the load and that you can acheive balance prior to buying one of these. Otherwise, you'll be very frustrated! I strongly recommend this EP to someone who has limited funds for buying a variety of high quality lenses. If purchased with a very high quality 2x Barlow, it will cover many lenses that can be purchased separately. I think mine passed QC in error, or was dropped during shipping because my distrortion issues & constant need of tightening haven't been mentioned by other reviewers. Also, I cannot imagine that mine would 'crack' during use, unless something was already defective. Now, I'm hoping that Celestron will repair or replace mine (it's still under warranty), but, I don't want my issues to prevent someone from seeing the value in this pretty high qaulity eyepiece. The glass is very clear, the exit pupil is very forgiving and the views can be tremendous! Clear skies to all! Dave ... show more
Reviewed in the United States on November 13, 2011 by David C. Gulliver
    • A good deal for anyone who uses a telescope.
Style: telescopes
I'm using this on a Celestron 102mm F5 telescope. While heavier than a standard eyepiece, it eliminates having to change out eyepieces with the chance of dropping one. (I have a old 40mm with a chipped lens from just this). On the Celestron it gives 21x to 63x. Eye relief is ample for eye glass wears at the 24mm end, but shortens down to where you won't be able to see the entire field of view (with glasses) at 8mm. I haven't had much chance to use this yet under the stars, but on things that I could view, the view appeared just about as sharp as with a regular eyepiece. The one major difference you will notice when you receive this is that it is larger and heavier than ordinary plossls. The rubber eyeguard can be reversed so that you don't need to turn it down if viewing with glasses. You may have to rebalance your telescope due to the somewhat greater weight compared to ordinary three and four element single power eyepieces. Stated weight is 4.8 ounces. It also comes in a real nice case with a screw top as well as a rubber top cover and a plastic slip on cover for the bottom. The image appears sharp over the field of view (an F5 telescope is a bit more demanding of eyepieces than say an F10 refractor). So this is a good eyepiece considering that it zooms from 24mm to 8mm. Apparent field of view is 40 degrees at 24mm and 60 degrees at 8mm. Refocusing is necessary in going from long to short or vice versa, but it isn't too much trouble. Much easier than swapping out eyepieces in the dark anyway... ... show more
Reviewed in the United States on March 26, 2016 by Kindle Customer
    • Don't confuse the nature of optics for the quality of the equipment.
Style: telescopes
This zooming eyepiece does a great job, but you need to be aware that somethings do not appear as well as others when zoomed in. This is an inescapable fact of life. Additionally, as with any zooming optical piece, the more you zoom in the smaller the field of view becomes. This means that the object can become too big to see all of it in the eyepiece when zoomed in depending on how big it appears to start with. The moon, for instance, will go from filling the whole eyepiece to just 1/6 of it filling the whole eyepiece. This is, again, just the nature of optics and is no fault of the manufacturer. But for viewing much farther away objects this zooming eyepiece is excellent at making them appear larger, which can greatly increase the detail visibility. Note: there are many objects for which the optimal view is a finite point in the range of zooming. For those objects, it's best to find that sweet spot and not try to zoom in too much. Also, it's best to turn the barrel, the zooming, slowly to find that right spot. The main reason for having a zooming eyepiece is to avoid having a dozen different sized eyepieces, any eyepiece within the range of this eyepiece becomes redundant. Thus, it's fine to have a 4mm eyepiece as this one only goes down to 8mm, or to have a 32mm since this one only goes up to 24mm. The base of this eyepiece has a threaded adapter which allows filter inserts to be mounted to the eyepiece. And, it comes with its own nice protective container. The container has a threaded lid that screws on, and the lid has an extension that fits the bottom of the eyepiece -- the eyepiece fits in the container upside down. The bottom and the top of the eyepiece also come with rubber dust caps. All in all, this eyepiece is very much worth buying for its convenience, function, and the fact that with it one does not need a handful of specifically sized eyepieces. ... show more
Reviewed in the United States on September 18, 2015 by J. Michail
    • VERY GOOD PRICE, but I have other lenses...
Style: telescopes
This is probably a very good buy if you don't already have some fixed power lenses. If you do have a few good ones, I would recommend a 2X Barlow lens. This zoom is very good even on my Explore Scientific ED80 - the low end version, that is. Criterion's and Explore Scientific's scopes can be pretty nice even around the $150 level. I favor refractors over reflectors, as reflectors are quite subject to getting out of line and needing collimating, which is not for the faint of heart. ... show more
Reviewed in the United States on June 3, 2025 by Bears Fan Jim

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