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  • Celestron 94119-10 1.25 " Eyepiece Filter Set
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Celestron 94119-10 1.25 " Eyepiece Filter Set


List Price: $51.95
Price: $29.89 & FREE Shipping on orders over $35. Details
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  • For 21, 80A, No. 15, Polarizing
  • Perfect for lunar and planetary observation
  • Reduce glare and light scattering
  • High-quality, solid plane parallel glass
  • Stackable filters for various combinations
7 new from $29.89

Frequently Bought Together

Celestron 94119-10 1.25 " Eyepiece Filter Set + Celestron 93230 8 to 24mm 1.25 Zoom Eyepiece + Celestron X-Cel LX 3x Barlow Lens (1.25")
Price for all three: $158.67

Buy the selected items together


Technical Details

  • Brand Name: Celestron
  • Model: 94119-10

Product Details

  • Product Dimensions: 8 x 8 x 6 inches ; 3.2 ounces
  • Shipping Weight: 4.8 ounces (View shipping rates and policies)
  • ASIN: B00008Y0TP
  • Item model number: 94119-10
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (17 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: March 19, 2003

Product Description

Product Description

Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Celestron's filters are made of high quality, solid plane parallel glass with excellent homogeneity. They're anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit Celestron's, and most other manufacturer's, 1.25 inch eyepieces, and offer a full 26 mm clear aperture. Celestron color filters are mounted in black anodized aluminum cells with the Kodak Wratten Series Number individually engraved, and come available in 4 assorted kits packed in plastic cases. The cells of each filter are double-threaded, so they can be stacked (piggybacked) in various combinations. This allows you to create different color combinations and transmission characteristics, or to have the same color characteristic, but with a lower transmission. When stacking color filters, the effective transmission of the combination you create is equal to the product of the spectral transmission of each of the filters used. The effectiveness of the filters depends on several factors, including: the aperture and focal length of the telescope, the magnification being used, and seeing conditions. Product Description For 21, 80A, No. 15, Polarizing Perfect for lunar and planetary observation Reduce glare and light scattering High-quality, solid plane parallel glass Stackable filters for various combinations

From the Manufacturer

Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Celestron's filters are made of high quality, solid plane parallel glass with excellent homogeneity. They're anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit Celestron's, and most other manufacturer's, 1.25 inch eyepieces, and offer a full 26 mm clear aperture.

Celestron color filters are mounted in black anodized aluminum cells with the Kodak Wratten Series Number individually engraved, and come available in 4 assorted kits packed in plastic cases. The cells of each filter are double-threaded, so they can be stacked (piggybacked) in various combinations. This allows you to create different color combinations and transmission characteristics, or to have the same color characteristic, but with a lower transmission. When stacking color filters, the effective transmission of the combination you create is equal to the product of the spectral transmission of each of the filters used.

The effectiveness of the filters depends on several factors, including: the aperture and focal length of the telescope, the magnification being used, and seeing conditions.

Customer Reviews

I'm no expert, but these fit the bill for me!
W. E. Weems
My first time to see thru filters so i can judge the resuts yet but i do know quality seems very good and nice and smooth inserting the threads.
BIG MAC
These are great filters for viewing the planets and the moon.
Amazon Customer

Most Helpful Customer Reviews

4 of 4 people found the following review helpful By Juan P. Gonzalez on May 2, 2013
Verified Purchase
First of all, the the picture on Amazon is incorrect. I hope they fix this soon. This filter set actually includes these 4 filters: Orange #21, Light Blue #80A, Deep Yellow #15 and ND-25 Neutral Density . You can verify this from the Celestron web site itself (look for part 94119-10). Overall, these are very good filters, but after using them a few times, I'm not sure that they improve my viewing much, so I stopped using them. The only one I still use occasionally is the 25% neutral filter which helps when viewing a full moon. There's nothing wrong with this set in particular, but I wouldn't recommend filters in general for most users. Most of us don't really need them, except for the neutral (gray) filter.
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7 of 9 people found the following review helpful By MarkusGK2 on July 31, 2011
Verified Purchase
The set is described as including a polarization filter (this is why I chose that set).
It came with a yellow No 15A filter instead.
There is no point discussing the quality of an article if it is not what was promised, that is why it gets only 2 stars.
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1 of 1 people found the following review helpful By John Thiel TOP 1000 REVIEWERVINE VOICE on April 8, 2014
Verified Purchase
I bought this set because it was cheap and included the basics. I couldn't have imagined how useful four filters would be.

HOW TO USE: Basically, choose the filter which is the color the object you're viewing is not. So if you're looking at Mars, use a blue filter; if you're looking at the Moon, use the gray filter; et cetera.

You can also stack filters, because they not only thread into the telescope but to each other as well. I sometimes use two filters for exceptionally bright objects.

Especially very bright objects such as Jupiter look so much better if you use a filter. You can really see the details. And for exceptionally bright objects like the Moon, it makes viewing not only more pleasant in terms of detail but because the Moon is so intensely bright it's very difficult to see it through a telescope without a filter.

It can be very hard to tell which filter is which in the dark, so I suggest you mark the case somehow that can tell you the difference when seen under a red light.
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1 of 1 people found the following review helpful By aluren on February 3, 2014
Verified Purchase
For the price of these pieces I think they work as expected. I've had other filters that were about the same price and the image quality is similar. The image shown on site is incorrect however, you'll get a neutral density filter and red/yellow/blue.

I actually use the neutral filter the most, it works great for Jupiter because Jupiter is so bright right now that you need to tone down the light a bit to enjoy it completely. The neutral filter is a must have for planetary viewing if you don't already have one.
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3 of 4 people found the following review helpful By Amazon Customer on August 18, 2010
Verified Purchase
These are great filters for viewing the planets and the moon. The only thing is that some of the filters are loose so they rattle this is pretty simple to fix. First thing you have to do to tighten the filter is set it down so the silver ring is up. If you look at the top of the filter you will see there is a plastic ring inside with two notches on it. You then just have to put a screwdriver or your fingernail into one of those notches and rotate the ring so it screws down into the filter, and this should stop the rattling.
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4 of 6 people found the following review helpful By Trevor on March 19, 2010
Verified Purchase
I purchased this set about a month ago, and must first say that the picture included does not represent the actual colors of this set, which are much more vibrant, not muted as it may appear. Contruction is very good for the most part, I gave the product 4 stars instead of 5 because the yellow filter glass is slightly loose within its metal frame, and hence makes a bit of noise as it shakes around. Certainly doesn't affect usage, and is completely unnoticable when inserted into an eyepiece or diagonal. The threading on all 4 filters was smooth, and easily screws into a wide range of products, not only those made by Celestron. On a good better best scale, I would put these in the better range. Certainly better than some bargain filters, but also no Lumicon.

I would certainly recommend this set to anybody. It is high quality offered at an excellent price. A similar set offered by Orion at the time of purchase was more expensive.

I aimed to review the construction and quality of this product, rather than provide an actual observational review. People buying astronomical filters already know what they are looking for.
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Verified Purchase
What you actually get is a dark blue, red, dark yellow and grey moon filter.
Dark filters dont word well for f/5 telescopes.
I am returning this set.
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By Rogerio Alonso on August 19, 2013
Verified Purchase
these filters from Celestron are different colors than what is indicated in the picture, as another reviewer noted. The kit I received has a yellow, red, blue, and a grayish light limiting filter approximately 25-30%. However, the quality this filters is very good.
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