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Celestron C5 Registry

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269 replies to this topic

#251 Ken Sturrock

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Posted 01 November 2018 - 11:14 PM

Just a friendly reminder that this is the C5 registry thread. New topics need new threads. Thanks.


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#252 Max Lattanzi

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Posted 02 November 2018 - 07:16 AM

You're right Ken -- my due apologies...!



#253 baelyn

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Posted 02 November 2018 - 01:09 PM

Acquired this C5 F/10 1250mm Telephoto from a gentleman who originally worked at Celestron. Serial "1 287 7". Primary Mirror marked "3361 T". Had a sticker that has came off with age. 

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Edited by baelyn, 02 November 2018 - 01:14 PM.

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#254 Masvingo

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Posted 10 December 2018 - 05:41 PM

Hi All
 
Just a quick post to thanks to Max Lattanzi and baelyn for the details on their C5s which I added to the C5 Registry back at the start of November and bumped to version 7.1. 
 
Thanks also to Max for pointing out that I had his other C5 # 4 3359 7 (end of 1977) within the list of those C5s having the 6 1/2" base and sand cast mount (holes in the forks) whereas it has the larger C8 base and diecast mount (no holes in the forks).  This prompted me to go back and check some of the other scopes from around that period and I see that I made an error in assuming that the diecast mounts came in at the beginning of 1978.  Having looked back at some of the other pictures,  the change over came in the third quarter of 1976 – the C5 that CHASLX200 had (serial 3 2275 6) was one of the last sand cast ones and eTourist’s C5 (serial 3 2413 6) being one of the first die cast ones.
 
baelyn’s C5 telephoto has an interesting serial number as it does not fit in with the general run – whether this is because Celestron used a separate series for the telephotos (those C5s which were sold as OTAs for use as a guidescope appear to follow the same sequence as the C5 fork mounted scopes) or whether it was because it was originally made for a gentleman who worked at Celestron (there are a couple of instances of C8s made for Celestron employees / dealers having unusual serials) I don’t know.
 
James


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#255 baelyn

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Posted 14 December 2018 - 05:59 PM

Found another C5 Telephoto that I had to rescue. Serial 3 531 7. Pristine condition with original accessories and catalog.

20181209 153355
Album: C5 Telephoto 1977
7 images
0 comments


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#256 Masvingo

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Posted 22 December 2018 - 11:18 AM

Congratulations, baelyn, on acquiring another C5 telephoto and thanks for the details.  Going by the serial number it seems that Celestron were using a separate serial sequence for the telephotos.
 
I've updated the C5 Registry to version 7.2 to include your new find.

#257 stevew

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Posted 22 December 2018 - 03:47 PM

Here is my white tube C5.

Serial # 57377

I have owned it for 10 years.

 

Steve

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#258 Masvingo

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Posted 23 December 2018 - 12:38 PM

Thanks Steve, I've added your C5 to the C5 Registry and bumped it to version 7.3.  That looks a nice grab'n'go setup.

#259 Bob/BataviaIL

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Posted 25 March 2019 - 01:36 PM

Please add NexStar 5 #66060 Silver Tube, no markings,  aluminum tripod legs.

Some purchases continue to provide small delights as time passes.  Such is the case with my newly adopted NexStar 5.  Taken in trade on a new shiny scope, it had been sitting there for less than 24 hours when I stumbled upon it.  “As-is, not tested, no return” says the sign.  

YES, says I.  

First delight is the price.  Eyepieces and do-dads would justify that alone. 

Second, great image. Doesn’t even need collimation. 

Third, NexStar hand control program works, LCDs are fading. 

Fourth, OMG those silky motors!  

Fifth, at star party, it’s easy to grab-n-go (aluminum tripod), setup is quick, public likes the view of M42, Moon & Mars through it. Grab-n-gohome is nice, too.

Sixth, there is a C5 Registry!

==> serial # 66060 

==> NexStar 5  undetermined DOM. 

==> my purchase date 03/14/2019

Needs cleaning and light maintenance.

 

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#260 Astrobril

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Posted 03 April 2019 - 12:55 PM

Here's my contribution to this registry:

 

Model G-5 (model 1999) on CG-3 mount.
Serial number: 66725.

Sold new on 2000-09-16 in Amstelveen, The Netherlands.

In my collection since 2018-12-15.

 

C5 - 66725 foto 1 (600).jpg C5 - 66725 foto 2 (600).jpg


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#261 Erik Bakker

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Posted 06 April 2019 - 03:40 AM

The love shown in this thread for this wonderful little classic continues to impress me. As does that great little scope itself bow.gif


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#262 Masvingo

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Posted 23 June 2019 - 09:20 AM

Agreed Erik, it's a wonderful little scope and it's great seeing the enthusiasm that there is for the C5.

 

Thanks for the details of your NexStar Bob, it sounds like a great find!  Thanks also for the details of your G5, Astrobril, its great to have an original sales date to give some idea as to the date of manufacture of C5s with later serial numbers.

 

I've added both to the C5 Registry which is now at edition 8.

 

Thanks again to everyone who's contributed, keep 'em coming please.

 

 


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#263 starman876

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Posted 23 June 2019 - 11:06 AM

looks like I need to dig mine out and give you the serial #



#264 Masvingo

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Posted 23 June 2019 - 01:21 PM

looks like I need to dig mine out and give you the serial #


Yes please! And don't forget pictures as well! waytogo.gif

#265 telesonic

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Posted 25 June 2019 - 12:27 AM

Here is one more to add to the registry - my C5 Telephoto 750mm (F/6)

Serial number is 1415 and it has a Special Coatings sticker. (whatever that may mean historically I do not know)

 

I Purchased this from the classifieds here back around Jan. 2019 - and it came with the original foam-lined case and 1.25" visual back as shown.

 

The C5 is a very fun scope to use, simple for grab-and-go and on a lightweight mount.... it's a great combo I feel. I use this with the same dovetail and tube ring setup that I use on my 4.5" newt and works like a charm.

 
 
C5 750 registry shot
C5 750 1

C5 750 2

 

 

T


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#266 Masvingo

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Posted 25 June 2019 - 01:24 AM

Thanks for the details on your C5 telephoto, telesonic, which I will add to the Registry.

From the 1974 Celestron catalogue:

"Special Coatings - For those who wish the absolute maximum transmission of light through their Celestron, special broad-band high-transmission coatings are offered. For the C5 and C8 these consist of magnesium-flouride anti-reflection coatings on the corrector and multi-layer enhanced coatings over vacuum deposited aluminium on each mirror. This results in a 15% increase in transmission. The special coatings group for the C14 includes mag-fluoride coatings for the corrector and enhanced silver on the mirrors resulting in a 17% transmission increase."

 

Edited to add: and from the 1976 C5 manual "Celestron Multipurpose Telephotos" on lens care and cleaning:

 

"To clean the exposed side of the corrector lens, first remove dust or dirt particles with a can of pressurized air or a camel's hair brush. The use a photographic lens cleaner and non-silicone lens tissue (or white "Kleenex") to clean the lens.
Corrector lenses with Special Coating (magnesium fluoride) require special care. For such optics, a good cleaning solution is 1/3 isopropyl alcohol, 2/3 distilled water and two drops of biodegradable dish detergent per pint of solution."


Edited by Masvingo, 25 June 2019 - 02:01 AM.

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#267 Masvingo

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Posted 25 June 2019 - 05:23 PM

I've updated the C5 Registry for telesonic's telephoto - now at edition 8.1.


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#268 telesonic

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Posted 26 June 2019 - 07:23 PM

Thanks for adding it to the list Masvingo!

 

Cheers,

T



#269 Pete W

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Posted 23 July 2019 - 10:00 AM

One more for the list!
 

Orange pebble finish:

Serial: 501126

Corrector serial: 1397

Motor Date: 6-79

Reported sale date: 3-11-1981 purchased from Edwin Hirsch (I have the receipt from the original owner)

 

Other: Came with an orange Celestron-badged, dual-axis drive corrector from Sidereal Electronics, but the scope does not have dec motors.

 

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#270 drejtiv

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Posted 10 August 2019 - 04:10 PM

A friend just picked this up from a thrift store for me.  He knew I was looking for a vintage C8, but amusingly it is a C5....and I'm thrilled!
 
Serial Number 501534
 
It is was thick with dust, but on first inspection the mirrors look good.  A bit of clean up on the corrector plate and I have a feeling this will see a lot of star time as my quick grab+go.
 
Now all I need is a tripod for it!
 
C5 Serial Number
C5 upright

Edited by drejtiv, 11 August 2019 - 11:04 AM.

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