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Just bought a used C8 Edge and get it tomorrow: Anything to look out for?

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#1 tomb18

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Posted 03 July 2020 - 08:44 PM

HI

A C8 Edge came up for sale locally so I will be buying it tomorrow if it checks out.  Of course, it won't be at night so I have to take the guys word for the image quality. Is there anything to look out for mecanically?

Thanks, Tom



#2 Bean614

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Posted 03 July 2020 - 08:51 PM

"...have to take the guys word for the image quality"  ??

 

Actually,  you CAN test it during the daytime.  Additionally,  by the time you get it home, it probably WILL need Collimation, and that fact is no fault of the seller's!

 

Enjoy the scope!



#3 Whichwayisnorth

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Posted 03 July 2020 - 09:01 PM

The moon. 

Going to be a full one . or near enough to cause you some problems.



#4 Keith Rivich

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Posted 03 July 2020 - 09:18 PM

HI

A C8 Edge came up for sale locally so I will be buying it tomorrow if it checks out.  Of course, it won't be at night so I have to take the guys word for the image quality. Is there anything to look out for mecanically?

Thanks, Tom

As long as there are no big dents in the tube, and the mirror is in one piece, it will be fine. Enjoy!



#5 tomb18

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Posted 03 July 2020 - 09:34 PM

So I take it they are reliable and optics quality has good quality control.

I have one 2" eyepiece.  The 32mm Panoptic.  Will this be a good choice for low power?  He wants $100 for the 2" adapter.  I have plenty of 1 1/4 eyepieces.

Tom


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#6 gnowellsct

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Posted 03 July 2020 - 10:50 PM

So I take it they are reliable and optics quality has good quality control.

I have one 2" eyepiece.  The 32mm Panoptic.  Will this be a good choice for low power?  He wants $100 for the 2" adapter.  I have plenty of 1 1/4 eyepieces.

Tom

It should be good.  But one never knows.  Celestron can throw some curve balls.

 

Do you mean 2" visual back (the correct term) plus a 2" diagonal for $100?  That could be good.  If you mean $100 for the visual back that seems excessive.  You use this with a refractor style diagonal.   The Astro-physics visual back for a c8 is very good I've used it for years.  You screw it on the back and then put the diagonal in.  

 

Some options are a diagonal with a ring that stays on the diagonal and you screw it on.  These are very unsatisfactory.  They come unscrewed, the barrels unscrew, they tend to rotate and dump oculars.

 

Greg N



#7 tomb18

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Posted 04 July 2020 - 12:14 AM

Actually the ad says a Meade visual back 2".  It pretty well looks the same as the AP version. But as I can see, $100 for the 2" back alone is too much.

Tom



#8 tomb18

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Posted 04 July 2020 - 03:06 PM

What a waste of my time. It was listed in excellent condition, being babied at all times. I was willing to pick it up for $400 below the selling cost at a store.

Well if he had given me $400 I wouldn't have taken it.

Scratches all over, not the optics though, dirty like you can't imagine, had been opened for cleaning by a local store, certainly not something one should mess with.

A real mess. 

Tom



#9 junomike

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Posted 06 July 2020 - 04:38 PM

What a waste of my time. It was listed in excellent condition, being babied at all times. I was willing to pick it up for $400 below the selling cost at a store.

Well if he had given me $400 I wouldn't have taken it.

Scratches all over, not the optics though, dirty like you can't imagine, had been opened for cleaning by a local store, certainly not something one should mess with.

A real mess. 

Tom

IME and IMO you made the right decision.



#10 KTAZ

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Posted 06 July 2020 - 04:51 PM

You did the right thing. One thng that you should always condier when buying used, regardless of what it is; look at enthusiast websites and classifieds.

 

The obvious example is here on the CN classifieds. Generally, hobby enthusiasts tend to take care of their equipment and disclose any issues or problems in the ad. Obviously there is no guarentee, but you are safer buying from reliable sources.

 

If I buy outside of that, the first question I am asking is whether they are the original owner and how their experience was using it. That can stop further dicussions pretty quick.



#11 tomb18

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Posted 06 July 2020 - 11:42 PM

He lowered the price $350.

So it's at the equivalent of $700US.  Even so, without seeing through it it's a risk.

Thinking of buying new.  Seems no where is there is any stock.   What's the typical delivery time for these?  Not astro-physics times I hope, lol.

Tom



#12 Andrew Brown

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Posted 07 July 2020 - 06:41 PM

A wise old man once told me "don't buy second hand cameras and lenses" he was Chinese funnily enough....as for that scope, walk away.



#13 tomb18

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Posted 13 July 2020 - 06:39 PM

I found another. This one is in nice shape but it a full package, with tons of accessories. By the time I sell all the stuff I don't need, eyepieces, mount, Barlow's autoguiders, and so on, the scope will be a very good deal, complete with dew shield, reducer, case and power supply
One question, the picture of the reducer is hard to see. The owner says 0.7 reducer. Is Celestron the only maker of a 0.7 reducer? Is the exit of the reducer 2"?
Tom

#14 junomike

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Posted 14 July 2020 - 04:06 PM

Reducer is most likely Celestron (don't recall another for the EdgeHD).

The threads on the from/back of the Reducer is SCT threads.  The same that's on the EdgeHD now.



#15 tomb18

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Posted 14 July 2020 - 06:00 PM

Hi
Don't you have a fork mounted APM 100mm?
I'm going to try the c8 on it for a fast and quick setup for planets.

#16 junomike

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Posted 14 July 2020 - 08:02 PM

Hi
Don't you have a fork mounted APM 100mm?
I'm going to try the c8 on it for a fast and quick setup for planets.

Me?  Ah, I think you've seen a pic if my APM 100's on my NS11GPS.

I now use then on an Evolution Mount most times.

 

Which Forkmount are you planning on using?



#17 tomb18

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Posted 14 July 2020 - 08:53 PM

It's home made and works with the APM 100s which weigh about the same. It has encoders and I use a gitzos 5 series with them.
Pretty light over all, maybe 17 pounds, much easier for a quick view than the 75 pound celestron mount!

#18 junomike

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Posted 15 July 2020 - 04:48 PM

It's home made and works with the APM 100s which weigh about the same. It has encoders and I use a gitzos 5 series with them.
Pretty light over all, maybe 17 pounds, much easier for a quick view than the 75 pound celestron mount!

Pics please!



#19 tomb18

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Posted 15 July 2020 - 11:31 PM

Hi, Sure.  It is plenty wide for the 8" Celestron and should support it fine at lower powers.

IMG 11012020 185359 (1080 X 1920 pixel)
IMG 11012020 185221 (1080 X 1920 pixel)


#20 junomike

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Posted 16 July 2020 - 05:23 PM

Ah, I remember where I seen that before.  Well Done!




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