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Celestron C5 Registry

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#126 TerryWood

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Posted 24 June 2017 - 10:33 AM

Yeah, that and the Sears 80mm f/15! Looking forward to seeing what you're adding to the stable!

 

V/R

 

Terry


Edited by TerryWood, 24 June 2017 - 11:25 AM.


#127 ETXer

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Posted 26 June 2017 - 07:13 PM

I finally obtained a C5 fully intact today... and a beauty it is!!  It's SN 42650 6 (4th qtr 1976). My previous C5 purchase (502931) was damaged during shipment with a broken corrector; I was reimbursed by the shipper, but that's another story.

 

Anyway, this scope seems to be a bit of a fence-sitter between two design changes with a smooth orange tube with the metal tube cap, but with diecast forks and the large drive base (Celestron Pacific serial number plate on the base, 3-prong drive cord socket). It also has the "Special Coatings" and patent stickers on the tube.

 

35557026885_075a28505f_b.jpg

 

 

35421532481_1a771667b3_c.jpg

 

34743001653_4bd98a1b37_c.jpg

 

Amazingly, it looks like I'll actually be able to give it (and its superb optics) a run this evening, thumbing my nose at the curse!

 

Cheers,

 

Allan


Edited by ETXer, 26 June 2017 - 07:23 PM.

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#128 TerryWood

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Posted 04 July 2017 - 10:23 AM

It looks like it's in beautiful condition! The only problem I'm running into with mine is that my forehead hits the finder scope whenever I look through the eyepiece. 

 

V/R

 

Terry


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#129 ETXer

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Posted 04 July 2017 - 10:03 PM

It looks like it's in beautiful condition! The only problem I'm running into with mine is that my forehead hits the finder scope whenever I look through the eyepiece. 

 

V/R

 

Terry

Thanks Terry, it really is immaculate, many thanks to the previous owner (cheers, Duane)! If anything, I may try to find a right angle finder for it, but that's way down on the list of priorities.

 

Allan



#130 orion61

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Posted 05 July 2017 - 11:34 AM

 

It looks like it's in beautiful condition! The only problem I'm running into with mine is that my forehead hits the finder scope whenever I look through the eyepiece. 

 

V/R

 

Terry

Thanks Terry, it really is immaculate, many thanks to the previous owner (cheers, Duane)! If anything, I may try to find a right angle finder for it, but that's way down on the list of priorities.

 

Allan

 

Allan, I am very happy to have made a bad situation good for you. As I told you that little C5 has stunning optics, I think it was a built on Wednesday scope.

But the real treasure that came out of the transaction is the friendship we have developed. If I hadn't stumbled into the incredible Sandcast 5 your scope would have never escaped my clutches. I could never imagine a better home for that little guy. It has been serviced and image shift that was bad,  is totally gone now.

For it's age, cosmetic, and optical condition it is a 9.5 in my Book. One of those scopes (not unlike my Questar) that it just never loses it's sharpness with extreme Magnification, it simply runs out of light. I'd love to see a bench test on that.. ""Calling All Daves""   lol

Good day my new friend,

Duane


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#131 ETXer

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Posted 05 July 2017 - 09:26 PM

And with my job evaluations successfully out of the way, I can now concentrate on some astronomy activities with no distractions or "dark clouds!" And from what I've seen so far, it's living up to expectations! Of course, now that I have the time, the weather's not cooperating, but time is on my side. I'll keep you (and everyone else) posted my friend!

 

Cheers, Allan



#132 Cometeer

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Posted 17 August 2017 - 10:32 PM

Would like to add my C5+ 54412 to the mix.

 

Has quite a few upgrades to it. Unfortunately, space is tight, so only keeping the tube and the fork, table top wedge, and tripod have to go. Has Starbright coatings. Perfect collimation after many years and not a single speck of dust or a scratch despite. I guess it helps that it was stored in a Celestron pelican-style case.

 

What's odd is that it has the EXACT same serial number as Grouptele's G5 in the registry. question.gif


Edited by Cometeer, 17 August 2017 - 10:37 PM.

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#133 Bomber Bob

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Posted 23 September 2017 - 03:57 PM

I finished cleaning & collimating this C5 Astro today.  Serial Number is 41658, and Corrector Number is 5413:

 

C5 Astro Restore S06 (DS Tripod).jpg

 

It came with the padded footlocker & 2 .965" eyepieces, but no manual, power cord, or tool kit.  Hope to do some observing with it tonight -- but on my Vixen Polaris / Eagle tripod:

 

C5 Astro Restore S08 (OTA on Polaris).jpg

 

Based on the numbers, would this be a 1976 / 1977 model?


Edited by Bomber Bob, 23 September 2017 - 04:02 PM.

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#134 Kasmos

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Posted 30 September 2017 - 11:58 PM

I'm actually surprised that I'm posting this as it sort of came out of the blue.

 

On Aug. 1st I was thinking of buying a sand cast model on Craigslist but the seller decided to keep it. It came up the other day while talking to my brother and he said. "I'll sell you mine for the same price". He bought it off of ebay maybe three or four years ago and only used it a couple of times.

 

So here it is. I'm guessing it's from 1980 since the motors are both dated 10-80. It's obviously a die-cast version and with special coatings. I like the serial# 502525, plus the fact that it matches both my 1979 C8 and 1978 C90 Astro perfectly. It's about as minty as them, plus all 3 have finders with the chrome eyepiece barrels. Also, love the pebble finish. BTW, I bought my other two from my brother 37 and 38 years ago.

 

C5-in-Case.jpg

Does anybody know why the C5's case upper foam is always cut?

 

C5-Serial#.jpg

C5-Rt.jpg

C5-Left.jpg

It came with a excellent condition locked tripod and wedge (that he bought separately),

plus the eyepieces below. No manual or power cord, but I have them from my C8.

 

C5-eyepieces.jpg

I'm not sure if the three 1.25" Orthos are standard equipment. I believe the 25mm's are usually Kellners?

The custom R.F.A. diagonal is just a diagonal (no field reducer frown.gif ), but the little .96" 12mm KD Ortho. is a bonus.

My C90 is really going to like that!


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#135 terraclarke

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Posted 01 October 2017 - 08:35 AM

Nice score Chris! I just love OT C5s! I wanted one so bad when they first came out but could not afford one then. I am so happy to have one now!


Edited by terraclarke, 01 October 2017 - 08:38 AM.

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#136 Kasmos

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Posted 01 October 2017 - 01:21 PM

Thanks Terra,

I wanted one badly too. The C8 and the C5 were very expensive in terms of 1970's dollars. The 5 was at one time only $100 less than the 8 but that made it a little more realistically in reach of youthful dreams.

 

It's really a nice size package. I am also so happy to have one now!  biggrin.png  


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#137 Bomber Bob

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Posted 01 October 2017 - 05:14 PM

Congrats Kris, and Terra.  These are iconic -- and cute -- and they're pretty darn good, too.


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#138 Rigelgeuse

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Posted 03 October 2017 - 08:14 PM

I picked up an early Celestron C5 last week. It came with a tripod (but no wedge), two Celestron 0.965 eyepieces and a star diagonal, power cord, wrenches, mounting bolts, and a case. The C5s drive runs smoothly, and on the few nights that I've had it out, the views of Saturn and the moon have been quite good. (I used an aftermarket 1.25" diagonal and eyepieces for viewing.) Apart from some hazing on the corrector plate (posted elsewhere), I think I have a pretty nice telescope. From the serial number, 25713, I gather it was unit 571 made in the 2nd quarter of 1973. It's a sand cast model, and has a 6 1/2" diameter base.

 

Photo Oct 03, 5 29 30 PM.jpg

 

Photo Oct 03, 5 29 33 PM.jpg

(There is some play of light on the diagonal. It actually looks fine.) 

 

Photo Oct 03, 5 30 22 PM.jpg

 

Photo Oct 03, 5 31 33 PM.jpg


Edited by Rigelgeuse, 03 October 2017 - 10:07 PM.

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#139 Rigelgeuse

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Posted 03 October 2017 - 09:02 PM

And this is what the top of my C5 tripod looks like. The base of the C5 is the same size, The 3 outer tripod holes match the mounting holes on the underside of the telescope base, and are almost 4 1/2 " apart. (The center hole is not used to attach the telescope to the tripod.) I understand that this might be different to to the size of the later C5 models.

 

Photo Oct 03, 6 44 05 PM.jpg

Shows diameter of 6 1/2" for the top of the tripod, the same diameter of this early C5.

 

Photo Oct 03, 6 44 33 PM.jpg

Shows the distance between any two of the three mounting holes as just under 4 1/2". The third mounting hole is cut off from the bottom of the photo. (The third hole you see in the photo is a center hole, not used to connect the telescope directly to the tripod.)


Edited by Rigelgeuse, 03 October 2017 - 10:06 PM.

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#140 Rigelgeuse

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Posted 05 October 2017 - 08:36 PM

And for sake of completeness, here are photos of the underside of this early sand cast C5:

 

IMG_5516-2.jpg

The three holes on the base of this C5 line up with the three outer holes of the tripod.

The holes on the tripod base are threaded. The tripod holes are not threaded.

 

IMG_5516-3.jpg

Close up of one of the C5's synchro motors.


Edited by Rigelgeuse, 05 October 2017 - 08:37 PM.

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#141 Sh8peshifter

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Posted 20 November 2017 - 10:27 AM

I have an opportunity to purchase a celestron 5 for $150.  It does not come with a stand.   Would this be a wise purchase?   

 



#142 Don W

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Posted 04 December 2017 - 08:31 PM

My latest acquisition. A mid 80s C-5 Guide Scope with Tangent assembly. Like new! SN 2 28497. Made in 1977

 

IMG_0878.JPG

IMG_0882.JPG

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#143 terraclarke

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Posted 07 December 2017 - 12:43 PM

Congrats Kris, and Terra.  These are iconic -- and cute -- and they're pretty darn good, too.

Thanks. They are fun. I got mine a year and a half ago. (Posts #74 - #77 in this thread)


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#144 Masvingo

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Posted 08 December 2017 - 05:09 PM

Time for another update of the C5 registry - the latest edition is here:

C5 Registry

Thanks to TerryWood, ETXer, Cometeer, Bomber Bob, Kasmos, Rigelgeuse and Don W for some new numbers, pictures of some beautiful scopes and some puzzles. 

 

Cometeer - that duplicate number is odd - Grouptele's post is in the CN archives but there is no picture.  Maybe Celestron used duplicate serials for different models althoiugh no others have turned up yet, or maybe they just made an error. confused1.gif

 

Bomber - my guess is your scope (#41658) is a 1978 model - we now have three 4xxx8 serials and one 4xxx9 (41658; 4190 8; 4311 8 and 4350 9) and it seems that around the end of the 1st quarter in 1978 Celestron might have dropped the quarter number from the serials - there is a similar change in the pattern of C8 serials for 1978 before the new style 5xxxxx (or 8xxxxx for the C8) came in some time in 1979.  Prior to 1978 the serials follow the pattern QxxxxY where Q is the quarter of the year in which the scope was made, Y is the last digit of the year and xxxx is a sequential serial number.  The last serial of this type in the Registry is JJordan's C5, serial 136588 (made 1st qtr 1978) with the sequential serial of 3658.  Looking at Bomber's and the other 3 C5 with similar serials, the last digit is 8 for 1978 (or 9 for 1979 in the case of the last one) but the quarter identifier (Q) has gone but it seems that the sequential serials might have continued as 4165, 4190, 4311 and 4350.  However, the C8 1978/early 1979 serials seem to follow a different pattern and may retain the quarter number or may have started a new sequence of consecutive serials having reached 9999 under the old QxxxxY system). confused1.gif  Bomber - is your serial number stamped with a larger space between the second last and the last digit?

 

I think the high price of the C5 compared to the C8 as noted by Kasmos can't have helped sales.  Initially it must have been quite expensive to produce as tooling costs, etc would only be amortized over a small number of sales and a lot of the C5 was different compared to the C8 - even the base was unique as shown by Rigelgeuse's sand cast C5) before Celestron changed to using the C8 base.

 

Kasmos and Terra - The C5 is a favorite of mine, small enough to be easily portable and big enough collect a reasonable amount of light - a nice package.

 

Please keep the numbers coming and if known, it would be good to have the corrector number and any date on the motors and the original purchase date if known.  Also, for the early numbers (ie prior to the change to the 5xxxxx sequence) please also give any spaces that appear in the serial number sequence if not obvious from a photo.

Any further contributions, clarifications and corrections gratefully received.

As before, new entries are in blue, and to keep the file size down I've only shown an image of the top part of the list in the image below, but the link above will take you to the full version.

 

c5serialv5part.jpg


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#145 Bomber Bob

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Posted 08 December 2017 - 05:48 PM

Bomber - is your serial number stamped with a larger space between the second last and the last digit?

 

Yes, gap is about big enough for two numbers.


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#146 Masvingo

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Posted 09 December 2017 - 09:14 AM

Thanks Bomber, I've amended the entry on the register.


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#147 CHASLX200

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Posted Yesterday, 06:39 PM

I have an opportunity to purchase a celestron 5 for $150.  It does not come with a stand.   Would this be a wise purchase?   

We need more info.  What year is it?  You mean no tripod?  The tripods are not that hard to find.



#148 CHASLX200

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Posted Yesterday, 06:40 PM

I may have a small round base C5 to add to the list not very far off if everything works out.


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#149 Masvingo

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Posted Today, 03:28 AM

Fingers crossed and looking forward to some pics if it all works out.



#150 CHASLX200

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Posted Today, 06:08 AM

Fingers crossed and looking forward to some pics if it all works out.

I will have pics.  Any of you guys with the mid and early C5's have any problems using a newer 1.25" Visual back?




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