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Celestron Silvertops - Fully Coated!!!

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#26 JIMZ7

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Posted 03 January 2013 - 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

#27 BillP

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Posted 03 January 2013 - 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.

#28 Blake Andrews

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Posted 03 January 2013 - 04:37 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


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

#29 Blake Andrews

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Posted 03 January 2013 - 04:42 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) :lol:


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

Cheers!

#30 Svezda

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Posted 03 January 2013 - 07:40 PM

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.

#31 Grava T

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Posted 03 January 2013 - 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.

#32 Dave Ittner

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Posted 03 January 2013 - 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...ified_id=764420

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

#33 Blake Andrews

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Posted 03 January 2013 - 09:47 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...ified_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

#34 Dave Ittner

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Posted 04 January 2013 - 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?

#35 Blake Andrews

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Posted 04 January 2013 - 03:42 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?


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

#36 Dave Ittner

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Posted 04 January 2013 - 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.

#37 dweller25

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Posted 07 January 2013 - 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.

#38 Dave Ittner

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Posted 17 January 2013 - 12:00 PM

Hi Blake,

Curious is the 50mm available without the black rim?

What focal lengths are available for the each generation?

Dave

#39 Blake Andrews

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Posted 19 January 2013 - 06:44 PM

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?

:jump:

Cheers!
Blake

#40 a_adam

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Posted 20 January 2013 - 04:40 AM

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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#41 Blake Andrews

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Posted 20 January 2013 - 10:19 AM

Very nice, André -

Thanks for sharing photos of your Gen 3 45mm. I had not seen one of these.
:jump:

I also discovered that I have a 22mm Gen 3 as well, so here is a revised list...

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):
45mm, 36mm, 26mm, 22mm, 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 15mm black-top silvertop? Any takers?

Another fun fact is that during the production of the Gen 1 and Gen 2 all-satin silvertops, it appears that Celestron had exclusive rights to distribution. When Gen 3 came along Vixen also produced a set with their own branding. The Vixen branded set also included a 5mm that I don't ever recall seeing with a Celestron brand.

I'll post some blacktop silver top photos as time permits.

Cheers!
Blake

#42 Blake Andrews

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Posted 20 January 2013 - 10:47 AM

Hi Blake,

You are very welcome to ''Christmas past'' glad to see you have added a couple more to this very exclusive early run :jump:, I think if others exist in the line you may have to look closer to the production source !

Good Hunting, and a Happy New Year,

Steve


Hi Steve,

Happy New Year. I hope your skies have been favorable this season.

Yep, this project is a exercise in supreme multi-year patience and I could not be successful without the help of folks like you!

Bagging the 17mm and 10mm will be challenging because its so easy to NOT notice the markings. I've missed a couple of opportunities because of that.
:bawling:

Good luck on the sale of your Celestron Erfles at auction on the other site.

Cheers!
Blake

#43 Dave Ittner

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Posted 20 January 2013 - 12:58 PM

Cool. Thanks for posting the pics

#44 stevep

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Posted 20 January 2013 - 01:10 PM

Hi Blake,

Thanks,

Bit of a hard decision and I might regret it!,
but over the years the herd keeps growing !! still I have had the pleasure to own and use these fine classic ep's
and have enjoyed them all,

If the 17 and 10 exist with patience you will find them,
and I wish you all the luck, as the two I had came from Australia might be worth hunting there,

Best of luck,
Steve

#45 Dave Ittner

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Posted 20 January 2013 - 01:22 PM

Hi Blake,

I just came across a snippet from a post that I saved. The poster provided this list of focal lengths and field stop

fl AFOV fieldstop
7.5mm 46d 6mm
10mm 46d 7mm
15mm 46d 11mm
17mm 47d 14mm
22mm 48d 17mm
26mm 49d 20mm
30mm 50d 28mm
36mm 35d 22mm
45mm 33d 25mm
50mm 43d 37mm

I think it might have been Don (eyepiecesetc) or BillP. Wish I had kept a link.

Shortly after recording the snippet above I can across a few other posts that stated there was a 6.3mm and a 20mm silvertop (not sure of what generation for either of them). If they didn't come from a post it might have been from a classifieds ad at one of the two main sites.

I saved the above because of my interest to collect a set.

Do you know anything about this 6.3 or 20mm?

Dave

#46 Blake Andrews

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Posted 20 January 2013 - 01:32 PM

Shortly after recording the snippet above I can across a few other posts that stated there was a 6.3mm and a 20mm silvertop (not sure of what generation for either of them). If they didn't come from a post it might have been from a classifieds ad at one of the two main sites.

I saved the above because of my interest to collect a set.

Do you know anything about this 6.3 or 20mm?

Dave


Hi Dave,
This is a common myth that just will not die. If you see an ad for a 20mm or 6.3mm Silvertop, be very skeptical. These simply do not exist. I believe Synta began making a silver flecked blacktop series with both red or black lettering from China sometime in the mid to late-2000's. These eyepieces are sometimes represented as silvertops.

FWIW, The Halloween Plossls do have a 6.3mm in the series.

Cheers!
Blake

#47 Dave Ittner

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Posted 20 January 2013 - 01:42 PM

Hehe, well what would life be like if we didn't have myths that just don't die?

I will scratch the 6.3 and 20mm from my list.

Thanks for clearing that up.

#48 Blake Andrews

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Posted 20 January 2013 - 01:45 PM

Hehe, well what would life be like if we didn't have myths that just don't die?

I will scratch the 6.3 and 20mm from my list.

Thanks for clearing that up.


It means that we couldn't have hokey-pokey funerals!!!

:grin:

#49 Blake Andrews

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Posted 13 March 2013 - 11:05 PM

Hi All,

Just a quick note to let you all know that I may have found a "Fully Coated" 10mm Silvertop!

I'm eagerly awaiting the package and I'll post pics as soon as I can.

:jump:

Stay tuned!

:grin:

- B.

#50 Blake Andrews

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Posted 20 March 2013 - 09:16 PM

Well,
My package arrived on Monday and of course this means at least another 2 weeks of winter.
:snowedin:

Anyway as promised, here are some quick glamour shots. This eyepiece was from a second owner. It was purchased with a complete Super C8 Plus setup from the first owner in 1988. The manual that came with the set has a copyright date of 1985. However, the scope could easily have been manufactured in 1984. This info probably does little to narrow the dates that the Fully Coated Silvertops were manufactured.

Enjoy!
Blake

The quest continues for the Fully Coated 17mm!!! :watching:

Attached Files








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