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Celestron C5 Registry

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#301 deepwoods1

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Posted 15 February 2020 - 02:41 AM

Time to ad another to the list! 

Orange Tube C5, serial #500388

Corrector #6403

Motor Date: 2-79

5X24 Finder

The operating manual: Rev. Jan-80

 

Attached Thumbnails

  • CelestronC51.jpg
  • CelestronC52.jpg
  • CelestronC53.jpg

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#302 Masvingo

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Posted 15 February 2020 - 11:34 AM

The date is on the side of the motors and can be very difficult to read.

Sometimes you can be lucky and can see a date on at least one of the motors without having to remove the motors.  In the second picture of my C5 the motor date of "4 81" can just be made out.

C5 base.jpg C5 motor.jpg



#303 Masvingo

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Posted 15 February 2020 - 11:39 AM

Many thanks to rogan, TakeMeToYourLeader and deepwoods1 for the details of your C5s which I've added to the C5 Registry which is now at edition 10.3.



#304 Ben H

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Posted 17 February 2020 - 10:30 AM

Has anyone ever given consideration to putting all of these registries on Google Sheets? You could set it up so anyone with a link would be able to view the sheet, and you could add trusted contributors able to make edits as well. 



#305 Masvingo

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Posted 10 April 2020 - 12:11 PM

Thanks for the comment Ben.  It's been suggested before but I'm still uncertain.



#306 Masvingo

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Posted 11 April 2020 - 03:28 PM

I've updated the C5 Registry to edition 10.4 to include the C5+ (serial # 53388) which I acquired recently.

 

C5+serial.JPG

 

My best guess is that it's mid 1990s.  Does anyone know if the motors for these are dated?  I did remove the base cover plate but not much of the motor is visible and I couldn't see an obvious date on the part I could see.

 

Declination drive detail:

 

C5+decmotor.jpg

 

C5+decmotor2.jpg


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#307 Masvingo

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Posted 11 April 2020 - 03:29 PM

Some more pictures:

 

C5+back.jpg

 

C5+front.jpg

 

The tripod is a modified NexStar one.


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#308 Masvingo

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Posted 11 April 2020 - 03:32 PM

And one more lot of pictures:

C5+side.jpg

 

C5+base2.jpg


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#309 Erik Bakker

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Posted 12 April 2020 - 04:35 AM

Congratulations on getting that C5+, hope you'll enjoy it!

As a side note, I like how you are running the registry yourself now.
I am not a fan of putting it in the hands of Google. At all.
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#310 Jon555

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Posted 27 April 2020 - 08:56 AM

BTW reading the registry I think it might be worth pointing out there that I bought mine 2nd hand, so the date is a "must be earlier than" one.

 



#311 Paracelsus

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Posted 28 April 2020 - 08:31 PM

Didn't notice this tread when i first joined today but I've had my C5 for a few decades now.

C5 #52934

I've no idea what age that puts it in but its still bright and a pleasure to use.

 

My C5
Album: Paracelsus' Images
1 images
0 comments


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#312 CHASLX200

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Posted 29 April 2020 - 05:37 AM

Didn't notice this tread when i first joined today but I've had my C5 for a few decades now.

C5 #52934

I've no idea what age that puts it in but its still bright and a pleasure to use.

 

If it is the one in the pic then it was made around the early 90's.



#313 Paracelsus

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Posted 29 April 2020 - 09:26 AM

If it is the one in the pic then it was made around the early 90's.

Thanks! I am pretty bad at recalling events and time together so this helps. Yes, its the one in the picture. My first telescope I bought new in 1973, a six inch reflector. The Celestron I bought used from a friend in the mid 90s then. 



#314 jgraham

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Posted 05 May 2020 - 06:35 PM

Serial number 1 2684 7...

 

C5 No_3 (5-5-2020).jpg

 

4-screw, metal secondary holder. It cleaned up beautifully!


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#315 Jon555

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Posted 07 May 2020 - 10:14 AM

So anyway my one (502056) seems to have fallen apart... I was just playing with a screwdriver, honest...

(Okay, so the inside of the corrector plate was filthy and now isn't... First time I've pulled it apart, so E&OE below...)

I thought the following might be of interest...

Note the two little bits of folded up yellow paper, before I removed the corrector plate (no, they don't stay in place), oh and also the dirt:

YellowPaper.jpg

Corrector Plate Serial Number (I assume of the mirror it's matched with):

CorrectorSerial.jpg

Serial Numbers on the Corrector Plate for, I assume, two mirrors they couldn't get it to match with:

CorrectorSerial-fails.jpg

Number on inside of Tube (part number or serial number?):

TubeSerial.jpg

Alignment on reassembly (make the blue stuff be between the lines scratched on the Tube, I improved this after taking the image):

Alignment.jpg

...and I didn't break anything :-)

(That I've noticed so far, that is... I might go back and tweak the Yellow paper if it isn't good.)

 

P.S. I don't think the corrector plate has any optical coatings.

(Edit) So I threw on a visual back, a Celestron 45 degree Erect Image Prism (94112-A) and a 19mm Panoptic (66x), added an Arca-Swiss plate to the Tripod mount (as all my Photographic stuff is Arca-Swiss) and put it on top of a heavy-duty Photographic Tripod with a geared head - and it seems really good as a terrestrial scope. (No star tests as it's not dark yet.)


Edited by Jon555, 07 May 2020 - 11:21 AM.

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#316 RalphMeisterTigerMan

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Posted 12 May 2020 - 11:43 PM

I have been trying to find the serial # of my circa 1993 C5+. Would the SN be on the bottom of the drive unit and not visible when set up?

 

Clear skies!

RalphMeisterTigerMan



#317 Linn

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Posted 13 May 2020 - 01:03 PM

I have been trying to find the serial # of my circa 1993 C5+. Would the SN be on the bottom of the drive unit and not visible when set up?

 

Clear skies!

RalphMeisterTigerMan

The serial number on the C5+ is on a white label on the black secondary cover in the middle of the corrector. They are of the 5xxxx format.


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#318 strgzrSulli

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Posted 14 May 2020 - 06:59 AM

I have two to add to the registry.
First:
C5+ sn 53214 purchased from Riders Hobby Shop, Jackson, Michigan in as best as I can recollect, spring 1997. Two modifications, added encoders for a Lumicon Sky Vector II and a good quality MRDF.
Second:
Nexstar 5i sn 74000 purchased 3/24/2020 from Astronomics  was custom built by Celestron for Fred Bieler founder of Astronomics.
 

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  • Nexstar 5i-1.jpg

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#319 RalphMeisterTigerMan

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Posted 16 May 2020 - 01:11 AM

Anomaly or Enigma.

 

On the secondary cap on the front of the corrector plate is everything that I have seen on all the other C5+ models. The Celestron logo, the three collimation screws and the patent number. But on the raised rectangular section where the white label with the serial number is nothing.

Just blank rectangular section with no white label, no serial number. Strange...

 

I wonder if perhaps my C5+ was somehow involved in a serious crime and the serial number filed off.....wait a minute! That is only done with firearms! Seriously, what type of crime could my beloved, innocent little, lovable C5+ possibly have been involved in?

 

Looks like we have a mystery on our hands gang. Shaggy, Scoob, Daphne and Velma...to the Mystery Machine!

 

Scooby Doooooo....

RalphMeisterTigerMan



#320 Masvingo

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Posted 06 June 2020 - 08:50 AM

Many thanks to Linn. strgxrSulli, jgraham and Paracelsus for details of their C5s and for Jon555 for some further details on his C5 including the number(s) on the corrector plate.  I've added them to the C5 Registry which is now at edition 10.5. 

 

strgzrSulli, It was interesting to hear about Fred Bieler's NexStar 5i, I wonder if the serial number was in sequence or specially reserved?

 

Many thanks again to everyone for their serial numbers and details of C5s and please keep them coming.


Edited by Masvingo, 06 June 2020 - 01:38 PM.

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#321 ANM

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Posted 21 July 2020 - 05:07 PM

I'm have a question about C5s: I have seen C* literature saying the C5s have .965" accessories and I have seen literature saying they have 1.25" accessories. I've seen more talking about 1.25" than .965", so which is right? Since I've bought one it would be nice to know what's going to arrive...



#322 Don W

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Posted 21 July 2020 - 05:32 PM

Ok, this is the C5 registry area, not a discussion thread, but I'll answer your question anyway. Many earlier amateur telescopes, particularly refractors, had .965" eyepieces. The C5 and C90s had a smaller throughput than the C8 and larger scopes, so they went with the .965 instead of 1.25" size. Not long into the 80s, most of the better eyepieces were in the larger size so they offered the C5 with them. As far as I know any C5 sold since the mid-80s came with a 1.25" visual back. I don't know of any major supplier that doesn't do that now.


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#323 ANM

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Posted 21 July 2020 - 06:01 PM

...

Number on inside of Tube (part number or serial number?):

attachicon.gifTubeSerial.jpg

...

 

That number is probably just a casting number so they can identify the raw unmachined casting. A serial number would never be cast in.



#324 Terra Nova

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Posted 21 July 2020 - 06:03 PM

I'm have a question about C5s: I have seen C* literature saying the C5s have .965" accessories and I have seen literature saying they have 1.25" accessories. I've seen more talking about 1.25" than .965", so which is right? Since I've bought one it would be nice to know what's going to arrive...

My 2nd quarter 1977 die cast fork mounted C5 had a 0.965” visual back and came with a full set of 0.965” accessories including circle T flat-top eyepieces marked Celestron, a prism diagonal with compression slot, a porro prism with a compression slot and a barlow.


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#325 CHASLX200

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Posted 21 July 2020 - 06:10 PM

My 2nd quarter 1977 die cast fork mounted C5 had a 0.965” visual back and came with a full set of 0.965” accessories including circle T flat-top eyepieces marked Celestron, a prism diagonal with compression slot, a porro prism with a compression slot and a barlow.

Seems they all did until they went to black jack. Seems around 1985 they came with 1.25" stuff on some of them. Seems they were a miss match on the size of eyepieces around that time.  Then they stopped making the 5 for a while until the one arm white tube C5 came out.


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