Jump to content


Photo

Celestron C80ED

  • Please log in to reply
20 replies to this topic

#1 jhighfield

jhighfield

    Sputnik

  • *****
  • Posts: 32
  • Joined: 13 Jun 2013

Posted 16 July 2014 - 03:13 PM

My first refractor in 40 years arrived today.
Bought the C80ED from Astronomers without Borders.

I know everyone harps on the focuser as being subpar but mine seems to operate fairly smooth.
I think it will make a nice edition mounted on top of my CPC1100 :)

#2 joseph07081

joseph07081

    Mariner 2

  • -----
  • Posts: 264
  • Joined: 26 Nov 2005
  • Loc: Chippewa, PA

Posted 16 July 2014 - 03:32 PM

Congrats..... I hope you enjoy your new toy.
I am happy with the performance of the stock focuser for visual. I still have not tried it with my DSLR yet....
If at that point I feel it is lacking, then I will order a Moonlite focuser.

#3 nodalpoint

nodalpoint

    Apollo

  • *****
  • Posts: 1217
  • Joined: 03 Jun 2013
  • Loc: FEMA camp

Posted 16 July 2014 - 03:39 PM

The focuser is fine with a DSLR camera - at least fine enough that the money to upgrade the focuser would probably be wiser to put towards a better scope overall.

#4 evan9162

evan9162

    Messenger

  • *****
  • Posts: 407
  • Joined: 20 Sep 2013
  • Loc: Boise, ID

Posted 16 July 2014 - 04:09 PM

The focuser benefits greatly from a teardown, degrease, regrease, and rebuild. The stock grease acts more like partially cured epoxy than a lubricant.

Afterwards, I could focus the moon (prime focus) and Saturn (with a 2x barlow) with reasonable effort for imaging with my DSLR.

I got the C80ED as a low power, wide field scope to complement my C6 SCT - thus, I intend to use it only for magnifications of 50x or less. At those powers, focusing is not as critical or touchy as it is at higher powers.

My only challenge now is figuring out the best way to adapt the scope for binoviewing while keeping its wide-field abilities.

#5 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3175
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 16 July 2014 - 04:13 PM

J,

Enjoy your New Scope :).

CS,KLU,

:thanx:,

Tom

#6 Binojunky

Binojunky

    Mercury-Atlas

  • *****
  • Posts: 2924
  • Joined: 25 Dec 2010

Posted 16 July 2014 - 05:21 PM

I bought two, one for me, the other for a friend, focusers on both were fine for visual anyway, in fact I prefer it to the Crayford on the Orion ED80, DA.

#7 jhighfield

jhighfield

    Sputnik

  • *****
  • Posts: 32
  • Joined: 13 Jun 2013

Posted 16 July 2014 - 05:28 PM

The stock grease acts more like partially cured epoxy than a lubricant.


I got the C80ED as a low power, wide field scope to complement my C6 SCT - thus, I intend to use it only for magnifications of 50x or less.


Epoxy may be a good name for it :)

I also bought it for low power viewing. I doubt I'll ever have it higher than 30x magnification.

Skies are beautifully clear tonight so I'll be out looking at some wide fields :)

#8 pdxmoon

pdxmoon

    Apollo

  • *****
  • Posts: 1024
  • Joined: 27 Jun 2013
  • Loc: Oregon

Posted 16 July 2014 - 06:42 PM

I too use it mostly on the full Moon at low power, but for visual. I also use as a grab and go. It is a wonderful scope. Enjoy!

#9 t.r.

t.r.

    Aurora

  • *****
  • Posts: 4514
  • Joined: 14 Feb 2008
  • Loc: 1123,6536,5321

Posted 16 July 2014 - 08:02 PM

The stock grease acts more like partially cured epoxy than a lubricant.


I got the C80ED as a low power, wide field scope to complement my C6 SCT - thus, I intend to use it only for magnifications of 50x or less.


Epoxy may be a good name for it :)

I also bought it for low power viewing. I doubt I'll ever have it higher than 30x magnification.

Skies are beautifully clear tonight so I'll be out looking at some wide fields :)


In cold weather, the focuser will almost seize, and will make the rubber grips slip and spin freely. It is best to clean out the goop and relube! ;)

#10 evan9162

evan9162

    Messenger

  • *****
  • Posts: 407
  • Joined: 20 Sep 2013
  • Loc: Boise, ID

Posted 16 July 2014 - 09:32 PM

The rubber grips on mine were pretty loose out of the box.

#11 k5apl

k5apl

    Viking 1

  • *****
  • Posts: 809
  • Joined: 19 May 2006
  • Loc: Arkansas

Posted 16 July 2014 - 09:40 PM

Enjoy your new C80ED. If you decide to re-lube the focuser, I gave a brief description on how I did mine on the older thread.
I also did as someone suggested and put electrical tape on the objective cover to shim it so it won't fall out as easy.

The new lube in the focuser, plus some small adjustments, make it a lot better performer. and, I agree with the other person that it is preferable over the Crayford focuser found on similar telescopes.
Can you give us your first light report?
Thanks
Wes

#12 joseph07081

joseph07081

    Mariner 2

  • -----
  • Posts: 264
  • Joined: 26 Nov 2005
  • Loc: Chippewa, PA

Posted 17 July 2014 - 05:30 AM

Wes

I read your post in the other thread, very nice instructions.
I plan to follow those myself when I can get the time to strip mine down.

#13 StarStuff1

StarStuff1

    Soyuz

  • *****
  • Posts: 3903
  • Joined: 01 Apr 2007
  • Loc: South of the Mason-Dixon Line

Posted 17 July 2014 - 04:26 PM

I hope your C80ED is as good visually as the C80 fluorite I had about 20 years ago. How I wish I had not sold that scope... :foreheadslap:

#14 dmgriff

dmgriff

    Viking 1

  • -----
  • Posts: 553
  • Joined: 20 Sep 2006
  • Loc: 30 degrees latitude, USA

Posted 17 July 2014 - 04:45 PM

My AWB c80ed arrived about the same time.

All I will change is the 1.25in 45deg terrestrial diagonal with a 2in or 1.25in star diag that I already have.

Other than that, its good to go for my needs.

I think you will enjoy yours.

Good viewing,

Dave

#15 Stelios

Stelios

    Surveyor 1

  • *****
  • Posts: 1978
  • Joined: 04 Oct 2003
  • Loc: West Hills, CA

Posted 18 July 2014 - 01:36 AM

I think you'll find it a superb grab-n-go scope at magnifications up to 150x and more. I was amazed at how well it took magnification, and how color-free it was.

I bought it as grab-n-go, but now use it for photography, something else it's quite good at.

I did replace the focuser, but from what I understand the quality on the stock R&P varies greatly. Mine was one of the poorer ones. I may replace the focuser again--I bought the regular GSO Crayford, but I suspect I should have bought the linear bearing version for photography, as I think there might be a bit of flexure there. I couldn't quite justify a Moonlite for such an inexpensive scope.

#16 RussL

RussL

    Music Maker

  • *****
  • Posts: 3157
  • Joined: 18 Mar 2008
  • Loc: Cayce and Lancaster, SC

Posted 18 July 2014 - 07:09 AM

Congrats, pal. I got mine from AWB just a few months ago, and I've been enjoying it very much. I've had it up to 150x with no problems. Also haven't done a thing to my focuser. It works fine for now, but I dunno how it will feel when it gets cold yet. I've also enjoyed 18x using my TV Wide Field 32mm as well as 15x with a simple 40mm Plossl. No color issues except that I could see just a tiny hint on Jupiter at high mag. But nothing like my ST80 or 120ST achros. Very nice scope indeed. Mine rides on an eq2 for easy management.

#17 photiost

photiost

    Apollo

  • *****
  • Posts: 1071
  • Joined: 14 Dec 2006
  • Loc: La Belle Province, Canada

Posted 18 July 2014 - 10:24 PM

Great scope.

I have mine for a few years now and dont plan to part with it anytime soon.

congrats.

#18 DCS

DCS

    Surveyor 1

  • -----
  • Posts: 1957
  • Joined: 03 Dec 2005
  • Loc: Cypress, Texas

Posted 19 July 2014 - 05:40 AM

The stock focuser works fine - it's a bit on the "basic" side but for this price that's what you get. I did have a little problem with the rubber grips slipping when you adjusted, but it wasn't that much of a bother. It held weight well (cameras, barlows, heavy eyepieces).

Eventually I replaced the focuser with a GSO double speed crayford. After this conversion, the C80ED is more like a mid to premium scope with nicely performing components at both ends of the tube.

-Pete

#19 zyzyz

zyzyz

    Explorer 1

  • -----
  • Posts: 80
  • Joined: 28 Sep 2013
  • Loc: Mid Michigan

Posted 19 July 2014 - 10:27 AM

I used the parts from a flip mirror to make a fine focus adapter for mine. Mated the helical focuser and eyepiece barrel with a plastic ring cut from a piece of 1 1/4 pvc pipe. I've used it with a barlowed 6.4mm at 188X for a colorfree view of the moon. It's made it easy to get a razor sharp focus at high power.

#20 rg55

rg55

    Apollo

  • *****
  • Posts: 1020
  • Joined: 02 Aug 2008
  • Loc: western US

Posted 22 July 2014 - 08:34 PM

I've been very happy with mine.

Attached Files



#21 photiost

photiost

    Apollo

  • *****
  • Posts: 1071
  • Joined: 14 Dec 2006
  • Loc: La Belle Province, Canada

Posted 22 July 2014 - 11:28 PM

I have been using a Prism diagonal on my C80ED and I like the results.






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics