Celestron 93624 Narrowband Oxygen III 2 Filter
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Product Description
Questions & Answers
Any threaded 2" eyepiece can be fitted with the filter at the bottom. It does not require the use of a camera.
The 48mm thread on the filter allows it to be used with 2" eyepieces. The T-shirt's backside There is a 'T-' on the adapter. thread' that can be used with a variety of camera adapters The T-shirt's front. The back cell of the telescope is attached to the adapter by a ring. The T-shirt does not have a 48mm thread. The filter cannot be used due to the lack of an adapter.
The 2" version is indicated by the model number. The 1. 93623 is the number for the 25" filter.
Without knowing the specific camera, it's difficult to respond, but look for threads where the camera fits into the focuser or diagonal. In most cases, the filter would be attached there. However, keep in mind that this filter is 2" in diameter. An adapter will be needed if your camera's attachment is too big or too small.
Selected User Reviews For Celestron 93624 Narrowband Oxygen III 2 Filter
It does exactly what it's supposed to do. I'm a low-income person who works part-time. I'm a low-budget backyard astronomer, but I'm not willing to settle for completely useless astronomy equipment. It appears to be the Baader filter with a new name. I bought the Celestron UHC/LPR, which is also a re-issue. Baader clone with the name "Baader" on it. Visually, it helps some nebulae stand out more, but we'll have to wait and see how it performs in astrophotography. I'm new to the hobby (since April 2017), and I don't see myself spending much more money on anything other than what I'm doing now visually or photographically. br>br>I use the filter on both my Explore Scientific 2" diagonal and single 2" eyepieces. In terms of visual, it works in both positions. My scopes with 2" focusers are achromatic refractors of 80mm (ST80) and 127mm (AR127), as well as a 180mm Mak- cass. Because the differences made by this filter are usually subtle, you'll need to know what to look for. In the case of this filter, you can expect more nebulosity to be visible. However, the view is dimmed as a result. Through my mak-up, the Orion and Ring nebulae didn't appear to be all that different. I haven't tried the filter on my 127mm and 80mm refractors yet, cass. br>br>The construction quality is excellent. Overall, I'm pleased with my purchase.
Meade. This Celestron O- comes with a one-year manufacturer's warranty. The performance of the III filter is comparable to that of the high-end brands. It's worked for me in skies ranging from a magnitude 3 urban white zone to a magnitude 7 blue zone. Depending on the type of nebula being observed and the viewing conditions, the visual contrast can be quite noticeable. I mostly use it with an EdgeHD 11" OTA, which produces excellent images at 100x to 150x magnification. I've also used it with a 120mm APO refractor, which is slightly smaller than the filter's recommended aperture. Nonetheless, it performs admirably and provides excellent wide-field views of the brighter nebulae. I wouldn't use it on smaller planetary nebulae or emission nebulae of the HII type. The threading is particularly nice; it easily fits onto the 2" eyepieces and is far superior to Orion filters. I've dropped it on payments a few times in the dark, and the glass hasn't been scratched or dinged. It is extremely well-made.
Don't expect to be able to see galaxy details after purchasing this. Galaxies are typically diffuse blobs of light, and to see any detail in them, you'll need extremely dark skies. That is something that no filter will be able to help with. However, it's ideal for all types of nebula: br>br> Personally, I prefer the UHC filter to the Orion, Dumbbell, Lagoon, Swan, Ring, and so on. It accomplishes the same goal as this, but it does so with less opacity. Regardless, the nebula filter is fantastic. You will not be disappointed with either this or the UHC if you purchase them. br>br>The reason I can only give it four stars is because it jams far too easily. Because I made the mistake of securing it on, it took me days to remove it from one of my eyepieces. Pro tip: When twisting this onto the eyepiece's bottom, always leave some slack. br>br>Important advice: THIS FILTER CAN BE APPLIED TO THE FOLLOWING APPLICATIONS: Eyepieces with a focal length of 25 inches are available. All you have to do is screw it into the 1's bottom end. There are 25 adapters. There is, in fact, a screw slot. This was a new discovery for me.
I can't compare this filter to Lumicon, Orion, Thousand Oaks, or other similar filters because I don't own or use any of them. The Celestron resembles the Baader Planetarium's offerings in appearance. I've never seen another brand with square serrations around the edges. br>br>We haven't gone out to our dark site with the O- yet. III yet, but I gave it a quick shot at our local community college a few weeks ago, where we usually just do planetary viewing due to the excessive light pollution. I put the O- in there. Not expecting much, we put III in our filter slide and pointed it at M57. After all, the Ring is said to be a better fit for a UHC filter than the O-ring. III. The end result was breathtaking- On an inky black background, the nebula appeared as a distinct greenish ring. After that, I switched to a longer FL EP and told our CPC 925 to slew over to M27. We don't usually get a good view of the Dumbbell from the college, and that night was no exception. I slid the O-ring in the FOV, unsure if it was even in it. The nebula just popped out of the dark site (Bortle's green) with no filter at all, nearly dead center and with as much definition as we usually get from the dark site (Bortle's green). br>br>The UHC and h- will undoubtedly be picked up. To be a part of this, you must use beta filters. I can't imagine how the Lumicon O- will compare at more than twice the price. III could be twice as good as this one, so in terms of performance and value, I'm very pleased with the Celestron filter. br>br>7 September 2012 UPDATE: It's been almost four years since I purchased this O- We've used the Celestron III and other Celestron filters at multiple locations under suburban skies as well as at our dark site, and the only thing I can say is that performance has been completely satisfactory in every way, and each filter still looks as good as the day I received it, both optically and physically. However, I must admit that they live a very spoiled existence-- We use them exclusively in our EarthWin binoviewer's power/filter slide, and I bought several extra pairs of carriers so that I never have to swap out a filter. made from a carrier frame Each unit only comes out of its plastic case long enough to slide into the binoviewer assembly once it's mounted in its carrier. (Because Denks and EarthWin are co-branded, the same carrier fits newer Denks as well. ) The patent for the power/filter slide system is owned by the owners of the patent. )br>br>I was taken aback when I saw the 1-star rating. Allen Andrews gave this filter a five-star rating today, based on my positive experience with it (I dug out the original packaging for my O-Filter). I don't recall receiving the III filter in the puzzle box described by Allen. My set came in a clear plastic hinged storage box that looked exactly like this one, but was a little smaller: The small plastic box was encased in a slightly larger cardboard box, which was lined with a thin sheet of foam. The filter's fit and finish were perfect right out of the box, so I screwed it onto a few different brand EPs and our 2" Zhumell Barlow to make sure the threads were fine before mounting it in the power/filter slide carrier frame. Allen's review makes me wonder if Celestron has switched to a new filter supplier, and the quality isn't as good as it once was. I would advise anyone thinking about purchasing this item to read reviews on the astro-website. Telescopes is an example of a vendor website. OpticsPlanet. com is a website dedicated to optics. com, and see if there are any relevant discussion threads in the Cloudy Nights forums. br>br>I should also mention that my personal experience with Celestron products has been completely opposite to Allen's. In 2007, I purchased a Celestron CPC 925 GPS SCT. It's one of the Chinese-owned businesses in the United States. Models were created, but the scope was extraordinary in every way: optically, mechanically, and electronically. My three Meade scopes, on the other hand, are a different story. There are two Newtonian reflectors and an ETX-based ETX-based ETX-based ETX-based ETX-based 125 Mak- Cas, all of which had flaws ranging from clouded mirrors to faulty drive mechanisms and missing parts when they first came out of the box. Even though we always set up on vibration isolation pads, a tripod foot cracked and broke on one of our first outings with the ETX. However, I agree with Allen that any Tele Vue or Thousand Oaks filter, and I'd add Lumicon to that list as well, but for the money, I'm still very happy with our Celestron nebula filters and OWL Astronomy color filters.
This is the rating for a brand new product. It works well on nebulae, but I received two used ones from Amazon. They must have been sent back to me after being returned. TWICE! The third time was the charm, but this should never be allowed to happen again. One was loose and dusty, but Amazon stepped up and replaced it, as well as giving me a discount on the other. However, this is a reaction to an event that should not have occurred in the first place. Amazon, please inspect your returned items and mark them as "returns" or "used" so that we are aware of the situation from the start.
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