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Difference between XLT and non XLT coatings....

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#1 scopefreak

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Posted 29 August 2005 - 10:37 PM

Hi all,

I have an oportunity to purchase an 8" Celestron SCT OTA with and without XLT coatings. The XLT coated scope is $250.00 more. Is it worth that much more $$$ for a 13% increase in light transmission and contrast?

Thanks in advance,

Kevin aka scopefreak

#2 JerryWise

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Posted 29 August 2005 - 10:43 PM


It's worth it in resale. The premium coatings bring more. I can see a real difference in the Celestron 9.25.

#3 scopefreak

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Posted 29 August 2005 - 10:54 PM

It's worth it in resale. The premium coatings bring more. I can see a real difference in the Celestron 9.25.


This may sound strange, but I really do not plan on selling it. I still have my very first scope from 1968(60mm Taco on EQ mount with built in finder). I still use this scope for the planets and my daughter loves it's original RED paint job ;) :D

Kevin

#4 JerryWise

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Posted 29 August 2005 - 11:00 PM


Wow Kevin, that is holding on to a scope.

When observing I like to feel I have the best performing optics I can get for a given scope. The pleasure of a little better view is well worth the money to me (in addition to resale). I wouldn't turn down a good deal on non-XLT OTA but would go for the XLT if the price difference were in the range you mention.

#5 scopefreak

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Posted 29 August 2005 - 11:08 PM

Wow Kevin, that is holding on to a scope.

When observing I like to feel I have the best performing optics I can get for a given scope. The pleasure of a little better view is well worth the money to me (in addition to resale). I wouldn't turn down a good deal on non-XLT OTA but would go for the XLT if the price difference were in the range you mention.


I agree, however, I opened my wallet the other day and 3 moths flew out :bawling: so I need to be cost conscious (and wife aware as well :p)

Kevin

#6 Syzygy

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Posted 01 September 2005 - 04:31 PM

Kevin,

I ponied up for the XLT coatings when I bought my NS11. I've listened to and read alot of traffic over the XLT coatings and what I get from it as that it doesn't make a noticeable difference in visual observing. It does appear to pay off in imaging. As of right now, I'm a strictly visual observer, so I can't refute or back up the claims on the imaging side.

#7 Daniel Mounsey

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Posted 01 September 2005 - 06:57 PM

Kevin,

I ponied up for the XLT coatings when I bought my NS11. I've listened to and read alot of traffic over the XLT coatings and what I get from it as that it doesn't make a noticeable difference in visual observing. It does appear to pay off in imaging. As of right now, I'm a strictly visual observer, so I can't refute or back up the claims on the imaging side.


Wow, sorry to hear that. The XLT's make a noticible difference visually.

#8 wilash

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Posted 01 September 2005 - 07:21 PM

Every purchase is a compromise. You have a large number of scopes now including an 8" newt. What do you think the SCT will give you the other scopes can't?

The other thing to think about is that your Newt isn't coated. Is that a problem?

#9 wilash

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Posted 01 September 2005 - 07:22 PM

John, welcome back.

#10 Syzygy

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Posted 01 September 2005 - 07:50 PM

Daniel Mounsey,

I have but one scope with the XLT coatings and no others to compare it to. Rest assured that I like the views that I get, but I don't have any experience with a non XLT NS11 to say yay or naye about the coatings. I was just passing on what I have researched, not trying to qualify an opinion.

wilash,

Thanks! It's good to be back!

#11 Daniel Mounsey

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Posted 01 September 2005 - 09:20 PM

No problem John, I understand.:) If you do get to compare them then share your thoughts.


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