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Equipment Discussions >> Classic Telescopes

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amicus sidera
Carpal Tunnel

Reged: 10/14/11

Loc: East of the Sun, West of the M...

Re: Edmund Scientific 8" f/8 OTA [Re: tim53]
#5728567 - 03/12/13 04:47 PM

Thanks, Tim - so noted!

Post Extras:

CHASLX200
Post Laureate

Reged: 09/29/07

Loc: Tampa area Florida

Re: Edmund Scientific 8" f/8 OTA [Re: amicus sidera]
#5728804 - 03/12/13 06:53 PM

Quote:

Quote:

Quote:

This 4" Meade SCT w/ LX drive is cute and it comes with a nice selection of Televue EPs. Ebay auction.

I wonder how the Meade would fare in a shootout with a Questar?

I have owned 5 of the Meade 4" CAT's over the years, three were dogs and one spotter version was dead perfect and one of the 2045's were very good.

Chas

I have a 2045D, the model that supplanted the 2045 LX3, and it is optically almost perfect. Wasn't like that when I took delivery, however; radial and rotary alignment of the secondary mirror and its holder is critical on these instruments, and will often greatly reward a bit of patient fussing-over.

Incidentally, I believe that many, if not most, of the 2045's were of Japanese manufacture.

My on-topic contribution:

Edmund Scientific 8" f/8 OTA - no mount (?)

I did every trick in the book, rotated the corrector, you name it i did and still got a soft image.

Chas

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Masvingo
sage

Reged: 01/10/12

Loc: Ayrshire, Scotland

UK Vixen 4" f15 OTA [Re: CHASLX200]
#5730762 - 03/13/13 05:40 PM

Vixen Japan P102L Saturn 4" F15 Refractor Telescope Tube Assembly

Not the seller.

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fodderwing
member

Reged: 02/19/13

Orange Tube C11 [Re: Masvingo]
#5731698 - 03/14/13 07:10 AM

No affiliation
http://minneapolis.craigslist.org/hnp/for/3630150916.html

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bob midiri
Carpal Tunnel

Reged: 06/17/04

Loc: pa 19320

Re: Orange Tube C11 [Re: fodderwing]
#5731702 - 03/14/13 07:14 AM

Thats a small looking C11? Judging by the size of the hangers in the closet, it looks like a c8 to me...?

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amicus sidera
Carpal Tunnel

Reged: 10/14/11

Loc: East of the Sun, West of the M...

Re: Edmund Palomar Jr. reflector... [Re: bob midiri]
#5731839 - 03/14/13 09:22 AM

I agree, it does appear to be a C8. The photo of the assembled fork mount is illustrative... compare the width of the arms to the drive base.

On Portland, Oregon CL:

Edmund Scientific 4-1/4" Palomar Jr. reflector

Wish it was near me in NJ, as I'm looking for one in a vain attempt to recapture my lost youth...

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amicus sidera
Carpal Tunnel

Reged: 10/14/11

Loc: East of the Sun, West of the M...

Re: Star Instruments 6" f/4 on Edmund mount... [Re: amicus sidera]
#5731859 - 03/14/13 09:36 AM

Anyone remember Star Instruments, out in Irvine, California? I recall them from the late 1970's. Here's what appears to be one of their 6" f/4 OTA's on a late 70's/early 80's Edmund Scientific medium-duty GEM:

Boston, MA CL

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The Planetman
sage

Reged: 01/27/06

Loc: Western KY

Re: Orange Tube C11 [Re: bob midiri]
#5732052 - 03/14/13 11:18 AM

It's an 11. The drivebase has the black plastic protrusion where the Celestron name and serial number is located, and the gold anodized corrector cover is the giveaway...

Quote:

Thats a small looking C11? Judging by the size of the hangers in the closet, it looks like a c8 to me...?

Post Extras:

tim53
Postmaster

Reged: 12/17/04

Loc: Highland Park, CA

Re: Star Instruments 6" f/4 on Edmund mount... [Re: amicus sidera]
#5732189 - 03/14/13 12:43 PM

Quote:

Anyone remember Star Instruments, out in Irvine, California? I recall them from the late 1970's. Here's what appears to be one of their 6" f/4 OTA's on a late 70's/early 80's Edmund Scientific medium-duty GEM:

Boston, MA CL

Star instruments was Paul jones' creation before he started making RCs

Tim

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Nave
Pooh-Bah

Reged: 02/23/10

Wray [Re: tim53]
#5732283 - 03/14/13 01:42 PM

Is that the objective sitting in the lid of the oak box in picture #2?
http://chico.craigslist.org/atq/3615260118.html

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actionhac
Post Laureate

Reged: 08/09/08

Loc: WA

Re: Edmund Palomar Jr. reflector... [Re: amicus sidera]
#5732289 - 03/14/13 01:48 PM

Quote:

I agree, it does appear to be a C8. The photo of the assembled fork mount is illustrative... compare the width of the arms to the drive base.

On Portland, Oregon CL:

Edmund Scientific 4-1/4" Palomar Jr. reflector

Wish it was near me in NJ, as I'm looking for one in a vain attempt to recapture my lost youth...

Someone should go get this Palomar Jr. Edmund knew what they were doing making a spherical f10 very smart easy to make perfect. A very potent tool for planetary and moon study.

Robert

Edited by actionhac (03/14/13 04:30 PM)

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terraclarke
Pooh-Bah

Reged: 05/29/12

Loc: Over the river and thru the wo...

Re: Wray [Re: Nave]
#5732354 - 03/14/13 02:39 PM

Wow, that is cool. Not 5800 bucks worth of cool, at least not for me, but it is a neat telescope.

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pbealo
sage

Reged: 10/12/06

Loc: New Hampshire

Re: Wray [Re: terraclarke]
#5732385 - 03/14/13 02:52 PM

Didn't a 4" Wray just like that recently sell on some auction site or another?!?! I agree: cool but not $5,800 cool. But everyone has their own opinion. BTW: what's that about Lowell Obs. appraising a scope?? Who there is qualified and willing to do so???

Peter B.

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actionhac
Post Laureate

Reged: 08/09/08

Loc: WA

Re: Wray [Re: pbealo]
#5732502 - 03/14/13 04:18 PM Attachment (13 downloads)

I just did some trading for this mirror and it seems older than the hills, may be a porthole? but its blue:

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actionhac
Post Laureate

Reged: 08/09/08

Loc: WA

Re: Wray [Re: actionhac]
#5732511 - 03/14/13 04:23 PM Attachment (11 downloads)

Its origin is a mystery. 15"f6 7/8" thick. Only mark is "IV W" or "N W"

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terraclarke
Pooh-Bah

Reged: 05/29/12

Loc: Over the river and thru the wo...

Re: Wray [Re: pbealo]
#5732517 - 03/14/13 04:27 PM

"BTW: what's that about Lowell Obs. appraising a scope?"

I have no idea? I'm just an admiring visitor.

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terraclarke
Pooh-Bah

Reged: 05/29/12

Loc: Over the river and thru the wo...

Re: Wray [Re: actionhac]
#5732524 - 03/14/13 04:29 PM

"Only mark is "IV W" or "N W""

That must be the orientation mark. That side of the mirror is always supposed to be oriented towards the northwest.

Terra

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actionhac
Post Laureate

Reged: 08/09/08

Loc: WA

Re: Wray [Re: terraclarke]
#5732539 - 03/14/13 04:40 PM Attachment (8 downloads)

I'm open to anything or any suggestion, its a possibility!

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terraclarke
Pooh-Bah

Reged: 05/29/12

Loc: Over the river and thru the wo...

Re: Wray [Re: actionhac]
#5732579 - 03/14/13 05:09 PM

Seriously, it is a beautiful mirror. It would be interesting to check its figure with a Foucault tester. Any idea what the f.l. is?

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actionhac
Post Laureate

Reged: 08/09/08

Loc: WA

Re: Wray [Re: terraclarke]
#5732623 - 03/14/13 05:36 PM

It should be 90 inches but I've got to measure it.
Yes its very nice looking but it does have a few clamchips.
It seems odd to be what appears to be a ancient mirror but so thin, I don't know how long thin mirrors have been around but I thought it was only since the 60's with John Dobson and porthole glass.
It has me completely baffled because it looks like a manufactured mirror blank, the way its edged.
A thought I heard glass can turn blue from the mineral impurities, possibly it could be a porthole I don't know.

I just measured 92.5" which makes it a 15"f6.2 holy swiss on rye batman. I wish I had a way to test it. At least I think its a telescope mirror and not a Searchlight reflector!

Robert

Edited by actionhac (03/14/13 08:03 PM)

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