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80mm f/6 FPL-53 doublets in the US?

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#26 hfjacinto

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Posted 07 November 2013 - 02:40 PM

No CA as far as I can tell on the 80MM EON. Never believe anyone that hasn't used the scope talk about it.

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#27 Jarrod

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Posted 07 November 2013 - 02:45 PM

I think you should sell me yours. That 120 needs to be used more often. :grin:

#28 hfjacinto

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Posted 07 November 2013 - 02:49 PM

Jarrod, its used enough ;)

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#29 Jarrod

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Posted 07 November 2013 - 02:53 PM

You are killing me right now :bow:

#30 hfjacinto

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Posted 07 November 2013 - 03:07 PM

Jarrod,

I keep telling people that the EON is the best scope. Its so good random strangers walk up to look through it even at sunset.

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#31 hfjacinto

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Posted 07 November 2013 - 03:09 PM

But Jarrod, true happiness is 2 EONS. :)

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#32 Jon Isaacs

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Posted 07 November 2013 - 03:16 PM

At f/7.5 (a little longer than you asked for) it will have better color correction than at f/6 and it is FPL-53 as you requested.


I knew about this scope but did not realize it had the FPL-53 element. At that price, compromising on focal length could be an option since I could always get the 0.85x reducer/flattener that is (was?) available for these 80mm f/7.5 doublets. But by the time you do that and add in a good focuser you are back up around the price of one of the more deluxe f/6 scopes...there is no free lunch it seems.

One issue I have is that I already made an investment in the Orion flattener for short refractors (the one that doesn't change the focal length) in anticipation of finding an f/6 'fractor for AP. Maybe the simple answer is that I just need to be more patient in the used market. One of the SW Equinox came up on Amart last week but I was too slow on the trigger. In fact I was 0-3 on Amart items last week, which was really annoying :bangbangbang:


If you don't need the F/6 focal ratio for visual, the C80ED seems like a good way to go...

Jon

#33 Wmacky

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Posted 07 November 2013 - 03:31 PM

No CA as far as I can tell on the 80MM EON. Never believe anyone that hasn't used the scope talk about it.


Can't wait to start getting pics like that with my EON 80!

#34 hfjacinto

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Posted 07 November 2013 - 03:43 PM

Jarrod,

One thing, you will need a field flatner for the F6.25 scopes. Especially with a larger chip. This was with a 25 by 17MM chip and as you can see even with the field flatner, the extreme edge of field has a few oblong stars, without a field flatner there is noticeable star elongation.

I use this one:

http://www.hotechusa...ategory-s/4.htm

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#35 Jarrod

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Posted 07 November 2013 - 03:46 PM

Thanks. I already have the Orion flattener for short refractors. Talk about putting the cart before the horse....

#36 Binojunky

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Posted 07 November 2013 - 05:03 PM

The Celestron from AWB is a fine buy, highly recomended,DA.

#37 dbowlin

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Posted 07 November 2013 - 10:03 PM

Black Friday will be her soon. Members will report good bargains. It could be big fun?
Dale

#38 jrbarnett

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Posted 07 November 2013 - 10:12 PM

*That* is an excellent point.

- Jim






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