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Availability:
In Stock.
Arrives
Tuesday, Jun 2
Features
- 2 SCT mirror diagonal with high performance XLT coatings
- 1/10th wave mirror is tested with an interferometer to ensure quality
- Housing is precision machined to achieve and hold good optical alignment.
- Includes a 2 to 1.25 adapter and aluminum carry case
- 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
2” SCT mirror diagonal with high performance XLT coatings
Brand: Celestron
Model Name: Mirror Diagonal with XLT Coatings - 2"
Eye Piece Lens Description: XLT coated
Objective Lens Diameter: 50.8 Millimeters
Telescope Mount Description: Altazimuth Mount
Product Dimensions: 8"D x 7"W x 7"H
Focus Type: Manual Focus
Finderscope: Reflex
Item Weight: 0.98 Kilograms
Compatible Devices: SCT Telescope, 2-inch Eyepieces
Eye Piece Lens Description: XLT coated
Mount: Altazimuth Mount
Focus Type: Manual Focus
Finderscope: Reflex
Compatible Devices: SCT Telescope, 2-inch Eyepieces
Coating: XLT
Focal Length Description: 1500 millimeters
Field Of View: 50 Degrees
Objective Lens Diameter: 50.8 Millimeters
Item Dimensions D x W x H: 8"D x 7"W x 7"H
Item Weight: 0.98 Kilograms
Exit Pupil Diameter: 1.02 Millimeters
Brand: Celestron
Model Name: Mirror Diagonal with XLT Coatings - 2"
Global Trade Identification Number: 72
Manufacturer: Celestron
UPC: 050234935272
Manufacturer Part Number: 93527-CGL
Model Number: 93527-CGL
Warranty Description: TWO-YEAR LIMITED WARRANTY
Built-In Media: 2” to 1.25” adapter, Aluminum carry case
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This is my second one. The first one came with an 11" Edge HD that I previously owned. The metal case that the retail version comes with is phenomenal and I wish the one I got with my Edge came with one. The quality is amazing but the one I ordered from Amazon didn't have the 2" to 1.25" adapter, which is really odd but it happens. The packaging is simply amazing. This item is packaged better than anything I think I have ever purchased from any telescope company. The lack of adapter doesn't really change my rating that much. The 4-star rating is because it would be really nice to have a version that utilizes the full rear cell for the 11 and 14 inch SCTs to make sure as much light as possible comes through. I have a custom made adapter that I used when I imaged with an OAG and opening up that full rear cell helped. It is a great price for a good diagonal. They claim it is interferometrically tested, which I completely believe knowing people who work at Celestron, but it would be nice if they stated what their flatness standard is - many competitors seem to be 1/10th or better. Less important in a diagonal so it doesn't really change my rating either. I definitely recommend it, despite my nitpicking. If I chose another one to thread right onto the SCT threads, this would be it but I will be taking the lack of adapter as a sign to try other routes this time around to fully utilize the amazing scopes Celestron makes. There's no doubt that they know what they're doing from interferometric tests as well as other tests. So, I have no worries buying this again if it is what I am looking for.
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Reviewed in the United States on July 10, 2017 by Josh Frechem
I recently purchased the Celestron 8" telescope and upon reading other reviews, this is my first upgrade. Very nice upgrade indeed. It is so much bigger then the diagonal that came stock. I would guess 2x bigger. The packing case is awesome with foam lining to protect it top and bottom. The case is overkill but very nice to own. I haven't used it yet because I just got it today in the mail and the sun is high in the sky. I will be using it tonight though and hopefully viewing the sky for hours. There is another eye piece that has been suggested (07743) made by Meade and that will probably be my next purchase. Everything is expensive like most hobbies. I'm gonna enjoy myself tonight!
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Reviewed in the United States on February 15, 2020 by RAN
Wowee. I put off buying the 2-inch diagonal for years. It isn't an exciting upgrade - or so I thought. Really, a 2-inch diagonal just a means to an end of 2-inch eyepieces. Wouldn't it be more exciting buying a new and better eyepiece? Probably, but this is a nifty upgrade by itself. Most 2-inch eyepieces are fairly pricey, so I figured I would need to buy the diagonal first. I was impressed. This two inch diagonal is a significant upgrade to the stock 1.25 inch diagonal that came with my CPC 800. Brighter, clearer, and more contrast. Even to my untrained eye, I could handily tell the difference. I completely recommend upgrading your stock diagonal to something like this, even if you plan on only using 1.25-inch diagonals. Celestron seems to have gone all out with the packaging on this one. Seeing the companion case that came in the cardboard box, I was expecting it to contain a Gucci bag, or something. No, just a nicely made telescope diagonal (I'd prefer the diagonal to anything Gucci, anyway). This diagonal comes with a nifty aluminum latching case. Complete with locking key and handle on the top. I'm not sure how useful the locking feature is, but the case is nice - I just hope it didn't bump the price too much.
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Reviewed in the United States on February 22, 2015 by Serac
Although this is an expensive item, I wanted to use the 2” eyepieces that I inherited from my Dad. This is a well made diagonal that screws right onto the telescope. The field of view is better with my 2” eyepieces but I haven’t had the chance to compare it to my 1.25” eyepieces - I’m hoping to be able to see fainter objects. The carrying case for this diagonal is a locking metal case which looks to offer more protection than the rest of my gear gets.
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Reviewed in the United States on March 11, 2021 by Carol Reardon
The 2 in. XLT Diagonal is beautifully made and comes in an elegant, metal, foam-lined box. At first I thought some of the parts were plastic but careful inspection showed it is all metal - though some of the metal is so highly polished and perfectly black coated it could be mistaken for plastic. It threaded easily and securely on to the back of my older Celestron 8, though I found a little stiffness when releasing the unit to turn it at a different angle. This is easily solved by lubricating the threads. I just rub them with wax. The drawer ease compound sold in hardware stores works and even white candle wax is OK. Just rub it on telescope's threads and wipe off any excess with a tissue before threading the parts together. Eyepieces slide in easily, and I really appreciate the internal bronze clamp bushings which prevent screw damage to the eyepieces and help lock eyepieces securely. Optical performance appears perfect, though my initial test has been limited by seeing conditions. It is visibly superior to the prism diagonal it is replacing. In summary, this is a high-quality, well made and finished diagonal at a really good price. It represents tremendous value and is a great way to upgrade an SCT.
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Reviewed in the United States on May 28, 2015 by Photomagica
I purchased this diagonal to replace the cheap diagonal that came with my scope and because I will be replacing the cheap 1.25" eyepieces that came with my scope with 2" eyepieces. I am amazed at the visual quality of the diagonal even when using 1.25" eyepieces with it. I have a Celestron NesStar 8 SE and it can carry the weight of the diagonal quite well. Keep in mind one thing though, this is a large diagonal so you will need to make sure it won't catch on your mount when doing a "go to". I use an autoalign system so I don't even mount the diagonal until the autoalign is done since the process will sometimes make the scope go vertical.
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Reviewed in the United States on August 14, 2014 by John