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Equipment Discussions >> Eyepieces

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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: Grava T]
      #5602905 - 01/03/13 12:31 PM

Hi Michael,

Thanks for sharing pictures of your "Multi Coated" 22mm, 17mm and 15mm. Of the three, I suspect that only a version of the 17mm might be found with a "Fully Coated" moniker.

Celestron "officially" released the first run of Silvertops for sale November, 1982. These were offered only in the 10mm, 17mm, 26mm, 36mm and 45mm focal lengths. I have the original price guide and flyer with the new product announcement to substantiate this date. The 15mm and 22mm were introduced years later, sometime in 1984, so I doubt that a "Fully Coated" version of these eyepieces was ever made (I would definitely like to hear from anyone that can prove me wrong on this point).

Cheers!
Blake


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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: BillP]
      #5602914 - 01/03/13 12:35 PM

Quote:

Quote:

From your perspective, is the Celestron Silvertop progression from "Fully Coated" to "Multi Coated" correct?





Yes. Don't think I've ever seen one saying fully multicoated. I don't think it was until the mid 80's that fully multicoated became the rage. Not sure who first started doing this.




You've just gotta love marketing one-ups-man-ship. I'm not sure I can recall a Celestron eyepiece that carried the moniker of "Fully Multi-Coated". Can you?

Thanks!
Blake


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SteveG
Post Laureate
*****

Reged: 09/27/06

Loc: Seattle, WA
Re: Celestron Silvertops - Fully Coated!!! new [Re: Blake Andrews]
      #5603027 - 01/03/13 01:38 PM

The entire Ultima line was advertised as Full multi-coating.

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BillP
Postmaster
*****

Reged: 11/26/06

Loc: Vienna, VA
Re: Celestron Silvertops - Fully Coated!!! new [Re: SteveG]
      #5603050 - 01/03/13 01:51 PM

Then after Full Multicoated we had Fully Broadband Multicoated which means nothing really since would hope the eyepiece coatings transmit across the visible spectrum (i.e., broadband)

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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: SteveG]
      #5603051 - 01/03/13 01:52 PM

Quote:

The entire Ultima line was advertised as Full multi-coating.




Thanks, Steve.

I just checked my Celestron Ultima and Axiom eyepieces and they are indeed marked "Fully Multi-Coated". I never noticed that before! Thanks for pointing it out. I should probably spend more time looking at them in the daytime!!!


Cheers!
Blake


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JIMZ7
Pooh-Bah
*****

Reged: 10/22/05

Loc: S.E.Michigan near DTW
Re: Celestron Silvertops - Fully Coated!!! new [Re: BillP]
      #5603076 - 01/03/13 02:02 PM

I thought Jan at University Optics was the 1st in the industry to offer "multi-coated or fully multicoated eyepieces". I somewhat recall that in one of his early catalogs where the Konigs had a "mushroom top". My Celestron 26mm "silvertop" Plossl reads Multi Coated.

Jim


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BillP
Postmaster
*****

Reged: 11/26/06

Loc: Vienna, VA
Re: Celestron Silvertops - Fully Coated!!! new [Re: JIMZ7]
      #5603186 - 01/03/13 03:05 PM

I saw some Parks catalogs from the early 80s that had fully multicoated. Meade catalogs in same era were just saying multicoated (aka - the research grade orthos). I wonder when the Orion Highlight Plossls came out as they are fully multicoated and the Sirius remain their not fully multicoated versions.

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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: JIMZ7]
      #5603334 - 01/03/13 04:37 PM

Quote:

I thought Jan at University Optics was the 1st in the industry to offer "multi-coated or fully multicoated eyepieces". I somewhat recall that in one of his early catalogs where the Konigs had a "mushroom top". My Celestron 26mm "silvertop" Plossl reads Multi Coated.

Jim




Hi Jim,

I pulled my two University Optics catalogs down and took a look. These were from 1985 and 1988, so a little later than the Mushroom Tops. But what a trip down memory lane.

In the 1985 catalog, the Konigs and Wide View Plossls were all listed as having Multi-Coated optics. The 1988 catalog is a different story as the 80mm Plossl, the 32mm and 40mm Konig-2, and the 40mm Konig-II 7/70 are all described as having all surfaces multi-coated (i.e. Fully Multi-Coated).

Cheers!
Blake


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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: BillP]
      #5603347 - 01/03/13 04:42 PM

Quote:

Then after Full Multicoated we had Fully Broadband Multicoated which means nothing really since would hope the eyepiece coatings transmit across the visible spectrum (i.e., broadband)




Yeah, and my Cemex Eyepieces are optimized for daytime solar viewing. Hmmm, is the sun a star? Don'tcha just love marketing hype?


Cheers!


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Svezda
scholastic sledgehammer


Reged: 06/01/07

Loc: Texas
Re: Celestron Silvertops - Fully Coated!!! new [Re: Grava T]
      #5603586 - 01/03/13 07:40 PM

Quote:

There's also a 15mm but the one I had was marked as multi coated.



The 15mm is a rare one - this took me a few years to locate and I finally completed my set (but I haven't even tried to find the two-inch diam. 50mm). Lucky that you have one of these.


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Grava T
Pooh-Bah
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Reged: 06/18/08

Loc: Quebec, Canada
Re: Celestron Silvertops - Fully Coated!!! new [Re: Svezda]
      #5603625 - 01/03/13 07:58 PM

I have used all the silver top plossls in the past except for the 7.5mm and the 50mm you speak of. I sold them all a few years ago. They are/were great eyepieces.

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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Celestron Silvertops - Fully Coated!!! new [Re: Grava T]
      #5603652 - 01/03/13 08:17 PM

I am confused. I just remembered that in the past when I was looking at pictures of the 50mm silvertop eyepieces they all seem to have the black rim on top.

like in: http://www.astromart.com/classifieds/details.asp?classified_id=764420

Is there a 50mm that is all Silver on top?
What version is this then?


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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: Dave Ittner]
      #5603745 - 01/03/13 09:47 PM

Quote:

I am confused. I just remembered that in the past when I was looking at pictures of the 50mm silvertop eyepieces they all seem to have the black rim on top.

like in: http://www.astromart.com/classifieds/details.asp?classified_id=764420

Is there a 50mm that is all Silver on top?
What version is this then?




Hi Dave,
The 2" 50mm Plossl is another interesting story. Originally, this Plossl was part of the early 2" collection of eyepieces. It originally had an unremarkable all-black body. There are at least three variations of the all-black 50mm 2" Plossl. Around 1996 Celestron modernized this eyepiece.

The eyepiece in the link you provided would be a "Third Generation" Silvertop. This means that it has the satin body with a black top and red silkscreened lettering.

There is rumor that Celestron produced a limited run of Second Generation 50mm 2" Plossls. This would have had an all satin silver body with engraved orange lettering and marked "Multi Coated". However, I've never ever seen one of these. I'd be tickled pink if someone could supply a photo of one (right now, I don't believe that these exist).

Cheers!
Blake


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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Celestron Silvertops - Fully Coated!!! new [Re: Blake Andrews]
      #5604874 - 01/04/13 02:02 PM

Okay I picked up
- 22mm Multi Coated
- 36mm Multi Coated
- 45mm Multi Coated
- 2X Barlow Multi Coated

Sorry the 22mm was not Fully Coated.

So now I plan to sell
- 36mm Fully Coated
- 2X Barlow Fully Coated
since I have Multi Coated versions of these.

Not sure what price to ask. The 36mm doesn't come up often at all. And to me being Fully Coated isn't that much of a difference or rarity to ask a higher price right?


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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: Dave Ittner]
      #5605050 - 01/04/13 03:42 PM

Quote:

Okay I picked up
- 22mm Multi Coated
- 36mm Multi Coated
- 45mm Multi Coated
- 2X Barlow Multi Coated

Sorry the 22mm was not Fully Coated.

So now I plan to sell
- 36mm Fully Coated
- 2X Barlow Fully Coated
since I have Multi Coated versions of these.

Not sure what price to ask. The 36mm doesn't come up often at all. And to me being Fully Coated isn't that much of a difference or rarity to ask a higher price right?




Hi Dave,

Congrats on your find. The 22mm is pretty much what I expected as it came along later in time.

Pricing is always somewhat tricky. Since I've only recently discovered the "Fully" vs. "Multi" variation, I haven't tracked separate pricing between them. The collectible factor of the Fully Coated could drive the price higher.

For the 36mm, I've seen these sell between $60 and $120.
For the Deluxe Barlow, these sell between $30 and $75.

The low end is typically without caps/box and the high end being complete and like new.

As always price is determined by what the buyer and seller agree upon and "your mileage may vary".

Good luck!
Blake


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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Celestron Silvertops - Fully Coated!!! new [Re: Blake Andrews]
      #5605124 - 01/04/13 04:14 PM

Thanks. I have an Orange Plastic Pill Box that I don't need as well. I have not looked to see what they go for. Although I am not sure I could get much as it has a nice long crack down one side. More cosmetic than anything.

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dweller25
Pooh-Bah


Reged: 08/30/07

Loc: Lancashire, UK
Re: Celestron Silvertops - Fully Coated!!! new [Re: Dave Ittner]
      #5610272 - 01/07/13 01:49 PM

Nice collection Blake, I still have the 10mm and 26mm versions and had the 15mm version but sold it :-( both of mine are multi coated - great eyepieces.

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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Celestron Silvertops - Fully Coated!!! new [Re: dweller25]
      #5627952 - 01/17/13 12:00 PM

Hi Blake,

Curious is the 50mm available without the black rim?

What focal lengths are available for the each generation?

Dave


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Blake Andrews
sage
*****

Reged: 07/31/08

Loc: Iowa
Re: Celestron Silvertops - Fully Coated!!! new [Re: Dave Ittner]
      #5632002 - 01/19/13 06:44 PM

Quote:

Hi Blake,

Curious is the 50mm available without the black rim?

What focal lengths are available for the each generation?

Dave




Hi Dave,

I've never seen an all satin / engraved orange lettered 50mm 2" silvertop plossl. It appears that Celestron retained the all-black 2" format when the silvertops were first introduced. The makeover didn't happen until the twilight of silvertops during the blacktop era.

Generation 1 (all silver with engraved orange lettering "Fully Coated"):
45mm, 36mm, 26mm, 17mm, 10mm and Deluxe 2x Barlow.

Generation 2 (all silver with engraved orange lettering "Multi-Coated"):
45mm, 36mm, 26mm, 17mm, 10mm, and Deluxe 2x Barlow, initially;
22mm, 15mm, and 7.5mm were released later;
30mm was released last.

Generation 3 (silver with black tops and silk screened red lettering):
36mm, 26mm, 17mm, 10mm, 7.5mm and Deluxe 2x Barlow;
50mm 2" was also released during this timeframe.

I'd be very interested in hearing from anyone that has an example that is not listed above. For example, how 'bout an all silver 50mm 2" Silvertop? Or, maybe a 45mm black-top silvertop? Any takers?



Cheers!
Blake


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a_adam
sage


Reged: 07/17/10

Re: Celestron Silvertops - Fully Coated!!! [Re: Blake Andrews]
      #5632636 - 01/20/13 04:40 AM Attachment (18 downloads)

Quote:


I'd be very interested in hearing from anyone that has an example that is not listed above. For example, how 'bout an all silver 50mm 2" Silvertop? Or, maybe a 45mm black-top silvertop? Any takers?





Hi Blake!

Here you go, 3rd generation 45mm. Made by Vixen, circle-V barrel and end caps.

Cheers!

-André


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