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Celestron 21024-ACC FirstScope Accessory Kit (Black)

4.5 4.5 out of 5 stars 3,122 ratings

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FirstScope
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Purchase options and add-ons

  • Get extra enjoyment out of your Celestron FirstScope Telescope!
  • Kit includes a Moon filter and two eyepieces with 24X and 50X magnification
  • The 5x24 finderscope makes locating objects much easier
  • Take your FirstScope telescope anywhere with the nylon carry bag
  • Learn more about the night sky with BONUS Astronomy Software download
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About Us

In the late 1950s, Tom Johnson worked as CEO and founder of Valor Electronics in Gardena, California. He was searching for a telescope to introduce his sons to the wonders of stargazing. When he couldn’t find one he liked, he built a 6” reflector from scratch. The project sparked Johnson’s interest in the hobby of telescope making. Over time, he began constructing larger and more complex instruments. Celestron has been an optics industry for decades, ever since Tom Johnson unveiled the game-changing C8. We strive to continue his legacy by continually developing exciting products with revolutionary technologies.

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Celestron 21024-ACC FirstScope Accessory Kit (Black)
Celestron 21024-ACC FirstScope Accessory Kit (Black)
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Price$27.95-7% $47.49
List:$50.95
-17% $99.99
List:$119.95
-7% $23.15
Typical:$24.84
-5% $18.51
List:$19.49
$24.74
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Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
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Customer Ratings
Easy to use
4.2
4.5
4.6
4.5
4.5
For beginners
4.3
4.2
4.5
4.5
Brightness
4.2
4.5
4.4
4.4
Value for money
3.9
4.0
4.4
Quality of material
4.0
4.7
4.7
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What's in the box

  • 5x24 Finderscope and bracket
  • Moon filter
  • 12.5mm Eyepiece - 24x magnification
  • 6mm Eyepiece - 50x magnification
  • Product guides and documents

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    Product information

    Warranty & Support

    Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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    Celestron 21024-ACC FirstScope Accessory Kit (Black)


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    Product Description

    If you have a Celestron FirstScope telescope and want even more versatility and portability, take a look at the Celestron FirstScope Accessory Kit! It includes six separate pieces that will enhance your observations and help you learn even more about the Universe.

    Get Help Finding Objects

    When you are observing something big, like the Moon, it is fairly easy to point your telescope along its line of sight and get that object in your eyepiece. However, smaller objects are much easier to locate in your telescope if you have a finderscope to help do the work. This 5x24 finderscope and bracket is made to attach to the FirstScope without tools. It magnifies the view by 5X and has optics 24mm in diameter. Once you have attached the finderscope to your telescope tube and have done some simple alignments, you will be able to point with the finder instead of the telescope itself.

    Choose Your Magnification

    Anyone who has a telescope will tell you that you can’t have too many eyepieces. Every eyepiece offers a different magnification and a different field of view. In the FirstScope Accessory Kit, you will get two 1.25” eyepieces. One is a 12.5mm model, and will magnify objects 24X more than your eyes alone can see. The second eyepiece is a 6mm, and will boost the power even further, to 50X. Remember, the lower the number of the eyepiece, the higher the magnification!

    See More Detail on the Moon

    The Moon is beautiful, but it is bright, especially when full. A Moon Filter works the same way sunglasses do for your eyes on a bright, sunny day. The filter lowers the amount of light reaching your eye, and allows it to relax and see details that would not be visible in an unfiltered view of the Moon due to glare. The Moon Filter screws onto the barrel of all of your 1.25” eyepieces, giving you a choice of filtered magnification. (Note: Do not use the Moon filter for solar observation.)

    Learn More About the Sky

    Starry Night Basic Edition is included in the FirstScope Accessory Kit. The software can be downloaded on your PC (Windows 7, XP, and Vista) or Mac (10.4.8 or later) computers. Learn the constellations, print out star charts for an upcoming observing session, and learn how to identify planets and stars, and more!

    Store & Carry Your Telescope Easily

    When your FirstScope telescope and accessories are not in use, store them in this nylon tote bag! Having everything together in one easily-identifiable carry bag will make it even quicker to grab your telescope and get outside to see the latest comet, bright, shining planet, or lunar eclipse!

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    3,122 global ratings

    Customers say

    Customers like the quality, value, performance, appearance and versatility of the camera other accessories. For example, they mention that it's a decent set, works well and that the cost-benefit ratio is really good. Opinions are mixed on filter, clarity, and ease of installation.

    AI-generated from the text of customer reviews

    135 customers mention112 positive23 negative

    Customers like the quality of the eyepieces and filters. They mention that it's a decent set, and they're pleased with the optical quality. Some customers also mention that the red and blue filters are medium quality, while the moon filter is plastic. Overall, customers are happy with the quality and value of the set.

    "...The plastic hard case seems durable enough and the items insides are protected by a die-cut foam.The items:-..." Read more

    "...The red and blue filters are medium quality, although the moon filter is plastic it does it's job well...." Read more

    "...The 6mm is also great, but goes blurry when objects come to the eyepiece's edge and despite being 52*FOV, it looks smaller than the 50*FOV of the 15..." Read more

    "...The rest of the eyepieces & filters are in great shape though...." Read more

    74 customers mention64 positive10 negative

    Customers like the value of the camera. They say it is worth the price, the optics are good for the price and the cost-benefit ratio is really good. Customers also say it's an affordable starter kit and the quality and clarity are good. They also mention that the price to performance ratio is splendid and it'll make an excellent purchase.

    "...Overall the kit for me is a great value. If you are starting in astronomy and on a budget this kit is for you...." Read more

    "First off I would like to say this is an excellent quality product for the price. The eyepieces, red, and blue filters are awesome...." Read more

    "Well worth the money, I only wish I have bought them sooner, the moon filter is a definite plus and the extra magnification makes you feel like you..." Read more

    "...you're paying around $7 USD for each accessory, so the cost-benefit ratio is really good." Read more

    73 customers mention63 positive10 negative

    Customers like the performance of the telescope. They say that the lenses and scope work well, and the filters work well. Some mention that the 2x Barlow works well for Jupiter, and that the moon filter works great on bright moons. Overall, most are satisfied with the performance and functionality of the product.

    "These lenses work perfectly and they were delivered very quickly." Read more

    "These eye pcs worked perfectly on my telescope. Nice case to keep everything organized." Read more

    "The lenses work great for viewing. The case could be better." Read more

    "The accessories themselves work fine, but it’s the case that is not good. As the items pics show, there are no latches...." Read more

    42 customers mention42 positive0 negative

    Customers are satisfied with the appearance of the telescope. They mention that it has great eyepieces and a barlow. The kit looks great and is a beautiful little scope. The x2 and x3 barlows are cool, but you have to know how to use them tricky. The lenses look great and are a nice complement to the telescope, making it a great choice for astrophotography.

    "...Also the 2x barlow is great because is contains the threads that can be used for attaching a dslr camera...." Read more

    "...Barlow is much like the 15mm, crisp, ghost free, and with the triple purpose design, it's the best part of the kit...." Read more

    "The case is nice. This would be a 5 star review if not for the 2x Barlow lens...." Read more

    "...Quality i could not gauge yet.- The x2 barlow is nice, and with the x3 barlow that makes the 4 i have (20mm, 15mm, 6mm, 4mm) into many more...." Read more

    17 customers mention17 positive0 negative

    Customers find the kit versatile, with a good variety of items for the scope. They say the eyepieces are a nice addition to the kit and are nice for adding some variety to the viewing options on your scope. Customers also say the set is a great value compared to buying everything.

    "...Fit perfectly and the extra accessories are a nice added value. Very pleased." Read more

    "...The case is ideal, because it is solid and can be added to. It organizes things in a secure and easy fashion...." Read more

    "It is a versatile kit because it brings what you need to complete your Celestron 76mm "Firstscope" telescope...." Read more

    "its a great kit to extend your options. the 15mm with the barlow quickly became my favorite...." Read more

    49 customers mention34 positive15 negative

    Customers have mixed opinions about the filter. Some find it great, helpful, and a nice to have, while others say it's not that great and seems like cheap plastic film.

    "...the money, I only wish I have bought them sooner, the moon filter is a definite plus and the extra magnification makes you feel like you are on the..." Read more

    "...Filters are gimmicks, unless you go into photography, moon filter is nice, the moon is VERY overpowering.The rant:..." Read more

    "All filters and lenses are expected, worth the price." Read more

    "...I was expecting a more natural color through it. instead, I get a terrible filter which wont even work on eyepieces over 20mm in size due the..." Read more

    34 customers mention17 positive17 negative

    Customers are mixed about the clarity of the camera. Some mention it provides a crisp clear view, while others say that the barlow did not produce a clear image. They also mention that the planetary viewing is very poor with it, and that the 6mm lens is a bit hard to see with.

    "...I really liked the relief on it, and the detail was much better.- The 6mm is a bit of a downer, not due to quality but due to relief...." Read more

    "...The image starts to get dim and seems like out of focused...." Read more

    "...The Barlow lens is great quality, not cheap plastic crap. Great views of the moon's craters, Jupiter, and even see some decent detail in the Orion..." Read more

    "...The 6mm is also great, but goes blurry when objects come to the eyepiece's edge and despite being 52*FOV, it looks smaller than the 50*FOV of the 15..." Read more

    19 customers mention12 positive7 negative

    Customers are mixed about the ease of installation. Some mention it's easy to use, while others say it'd be difficult to install. They say the instructions are confusing and difficult to get a good grasp on. Some customers also mention that the product is clumsy and poor quality.

    "The lenses are amazing very clear and bright and easy to use. The barlow on the other hand makes it appear blurry...." Read more

    "...Usable but likely to frustrate. The set includes eyepieces that are pretty much the lowest quality available...." Read more

    "...time getting it set up the first time we used it, but now it is easier for us to use and it works great! I am definitely glad I purchased this!" Read more

    "...The 15mm eyepiece is a stand out feature, it is so much easier to use that the eyepieces included with the telescope, due to the wide field of view...." Read more

    Great affordable starters kit
    5 Stars
    Great affordable starters kit
    There are few reviews of this product in the net so I'll try to be detailed as possible.The kit came in with a box and inside the hard shell that stores the items. The plastic hard case seems durable enough and the items insides are protected by a die-cut foam.The items:- 2x Power Lens with T-threads- 80A Blue Planetary Filter- 25 Red Planetary Filter- Moon Filter- 15 mm Kellner Eyepiece- 6 mm Plössl Eyepiece- micro fiber cloth1. 2x Power Lens with T-threads (Cost about 40 USD)This is probably the same with this product Celestron Universal T-Adapter 1.25in 93640Good enough for viewing bright objects like the moon and jupiter. I tried all my lens (25 mm and 10 sirius plossl, 15 mm Kellner and 6 mm celestron plossl to viewing the moon and jupiter, the image stays sharp and minimal light loss since the moon was bright.The Barlow lens itself can be removed and attached to you're individual eyepieces giving you a 1.5x magnification - which is a good feature.The barlow has a t-threat so you can attached a t-ring for you dslr - another good feature.For viewing stars and dim object you'll immediately notice that light loss with this 2x barlow. The image starts to get dim and seems like out of focused. 10/22/2012 Although I tried it recently with a 10 mm plossl and I still saw the orion nebula. A gray patch/smoke in the sky. No color but still magnificent =)2. 80A Blue Planetary Filter and 25 Red Planetary Filter (This propably cost 20 USD)Good quality filters, this filter is probably the color mostly used. The housing is metal and threaded on both side so it can be attached to another filter to change the color. (adding the red and blue will just yield a darker red =)) I tried the blue with jupiter and it made the white bands blue (it's better for me to just view it without a filter)3. Moon Filter (Cost 10 USD)Celestron Telescope Moon Filter - 1-1/4" 94119-AHousing is plastic and it fits my other eyepieces but has a problem fitting the 15 mm kellner that came with the kit (don't force it to fit the thread will be ruined) You will view a greenish moon with this filter. I'll post a moon video sample soon. I does indeed help in toning down the brightness and increasing the contrast of the moon.4. 15 mm Kellner EyepieceCelestron 15mm 1.25" Telescope Eyepiece w/ EyeguardGood midrange eyepiece. I view jupiter with this with a 3x barlow and I saw the bands and 4 moons. If you want a affordable eyepiece go for a kellner. Don't be afraid of kellners they are not bad =)5. 6 mm Plössl EyepieceCelestron 6mm 1.25" Plossl Telescope EyepieceOne of the reason I bought this kit is this lens. Good quality eyepiece for high power viewing. It's a plossl. When you buy this alone it will cost about 25 USD half of price of the kit alone. I used this with a 3x barlow to view the moon. The FOV is small but the magnification was great. It pushed my 130mm scope to 325X.6. micro fiber clothA plus for cleaning your eyepieceOverall the kit for me is a great value. If you are starting in astronomy and on a budget this kit is for you. If you buy the items by piece it will cost more than 100 USD.I've read some comments from astronomy forum that they should not bother to buy this because it's cheap. Well if you're on a budget what's included in this kit is very useful. And as always Amazon is great!I'll update this review again if I have other eyepieces, barlow and filters to compare it with.My telescope is the Orion spaceprobe 130st
    Thank you for your feedback
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    Top reviews from the United States

    Reviewed in the United States on October 12, 2012
    Style: AstroMaster Accessory KitPattern: SingleVerified Purchase
    Customer image
    mrc
    5.0 out of 5 stars Great affordable starters kit
    Reviewed in the United States on October 12, 2012
    There are few reviews of this product in the net so I'll try to be detailed as possible.

    The kit came in with a box and inside the hard shell that stores the items. The plastic hard case seems durable enough and the items insides are protected by a die-cut foam.

    The items:

    - 2x Power Lens with T-threads
    - 80A Blue Planetary Filter
    - 25 Red Planetary Filter
    - Moon Filter
    - 15 mm Kellner Eyepiece
    - 6 mm Plössl Eyepiece
    - micro fiber cloth

    1. 2x Power Lens with T-threads (Cost about 40 USD)

    This is probably the same with this product [[ASIN:B00009X3UV Celestron Universal T-Adapter 1.25in 93640]]

    Good enough for viewing bright objects like the moon and jupiter. I tried all my lens (25 mm and 10 sirius plossl, 15 mm Kellner and 6 mm celestron plossl to viewing the moon and jupiter, the image stays sharp and minimal light loss since the moon was bright.

    The Barlow lens itself can be removed and attached to you're individual eyepieces giving you a 1.5x magnification - which is a good feature.

    The barlow has a t-threat so you can attached a t-ring for you dslr - another good feature.

    For viewing stars and dim object you'll immediately notice that light loss with this 2x barlow. The image starts to get dim and seems like out of focused. 10/22/2012 Although I tried it recently with a 10 mm plossl and I still saw the orion nebula. A gray patch/smoke in the sky. No color but still magnificent =)

    2. 80A Blue Planetary Filter and 25 Red Planetary Filter (This propably cost 20 USD)

    Good quality filters, this filter is probably the color mostly used. The housing is metal and threaded on both side so it can be attached to another filter to change the color. (adding the red and blue will just yield a darker red =)) I tried the blue with jupiter and it made the white bands blue (it's better for me to just view it without a filter)

    3. Moon Filter (Cost 10 USD)
    [[ASIN:B00006LSVL Celestron Telescope Moon Filter - 1-1/4" 94119-A]]

    Housing is plastic and it fits my other eyepieces but has a problem fitting the 15 mm kellner that came with the kit (don't force it to fit the thread will be ruined) You will view a greenish moon with this filter. I'll post a moon video sample soon. I does indeed help in toning down the brightness and increasing the contrast of the moon.

    4. 15 mm Kellner Eyepiece
    [[ASIN:B0074JRON6 Celestron 15mm 1.25" Telescope Eyepiece w/ Eyeguard]]

    Good midrange eyepiece. I view jupiter with this with a 3x barlow and I saw the bands and 4 moons. If you want a affordable eyepiece go for a kellner. Don't be afraid of kellners they are not bad =)

    5. 6 mm Plössl Eyepiece
    [[ASIN:B007GNJRP8 Celestron 6mm 1.25" Plossl Telescope Eyepiece]]

    One of the reason I bought this kit is this lens. Good quality eyepiece for high power viewing. It's a plossl. When you buy this alone it will cost about 25 USD half of price of the kit alone. I used this with a 3x barlow to view the moon. The FOV is small but the magnification was great. It pushed my 130mm scope to 325X.

    6. micro fiber cloth

    A plus for cleaning your eyepiece

    Overall the kit for me is a great value. If you are starting in astronomy and on a budget this kit is for you. If you buy the items by piece it will cost more than 100 USD.

    I've read some comments from astronomy forum that they should not bother to buy this because it's cheap. Well if you're on a budget what's included in this kit is very useful. And as always Amazon is great!

    I'll update this review again if I have other eyepieces, barlow and filters to compare it with.

    My telescope is the Orion spaceprobe 130st
    Images in this review
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    170 people found this helpful
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    Reviewed in the United States on November 23, 2013
    Style: AstroMaster Accessory KitPattern: SingleVerified Purchase
    7 people found this helpful
    Report
    Reviewed in the United States on November 15, 2012
    Style: AstroMaster Accessory KitPattern: SingleVerified Purchase
    4 people found this helpful
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    Reviewed in the United States on March 14, 2024
    Style: AstroMaster Accessory KitPattern: SingleVerified Purchase
    Reviewed in the United States on March 17, 2024
    Style: AstroMaster Accessory KitPattern: SingleVerified Purchase

    Top reviews from other countries

    Translate all reviews to English
    Alfredo Orozco
    5.0 out of 5 stars Excelentes
    Reviewed in Mexico on February 24, 2024
    Style: AstroMaster Accessory KitPattern: SingleVerified Purchase
    Sean Mcgrath
    5.0 out of 5 stars Nice set
    Reviewed in Canada on August 2, 2023
    Style: AstroMaster Accessory KitPattern: SingleVerified Purchase
    Clifford S.
    5.0 out of 5 stars Fast delivery, but package was damaged.
    Reviewed in Canada on June 6, 2023
    Style: KitPattern: SingleVerified Purchase
    Widhey Henrique
    5.0 out of 5 stars Serve perfeitamente e muito eficiente!
    Reviewed in Brazil on December 11, 2021
    Style: FirstScopePattern: SingleVerified Purchase
    Matt W.
    5.0 out of 5 stars Amazing for the price
    Reviewed in Canada on June 14, 2021
    Style: FirstScopePattern: SingleVerified Purchase