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Any owners of Brass Classics?

classic
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132 replies to this topic

#126 Dan /schechter

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Posted 04 June 2019 - 10:52 AM

How about a picture my friend?

I tried to load it but it was rejected even though it was about 250k. Will try again tonight.



#127 Ken Launie

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Posted 05 June 2019 - 06:03 PM

Though it's mostly cast and rolled iron, it DOES have some brass. Dating from around 1865-75, it can be considered a classic. John Browning's firm made this 4.5-inch reflector according to the label and the Browning catalog "A Plea for Reflectors". The actual clear aperture is 4.3", the inner diameter of the mirror retainer.

 

--Ken

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#128 steve t

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Posted 05 June 2019 - 08:21 PM

Ken,

That is a great looking scope. Thanks for sharing. 

Steve T 



#129 tim53

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Posted 06 June 2019 - 08:52 AM

Here's my 3 1/2" Watkins and Smith gregorian from ~1770.  I haven't done anything to this scope since I found it on ebay about 2 1/2 years ago.  Just cleaned off polishing residue.  I love the ivory focus knob and the flamboyant signature, which reads "Watkins and Smith, Charing Cross, London".

 

The scope is missing the original secondary mirror, and only has a collimation eyepiece.  There's no case or other parts or accessories.  It's such a beautiful piece that I couldn't resist, even if it's not currently functional.  I would still like to replicate a secondary for it and either make or locate some vintage eyepieces to try viewing through it.  

 

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#130 terraclarke

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Posted 06 June 2019 - 10:43 AM

Though it's mostly cast and rolled iron, it DOES have some brass. Dating from around 1865-75, it can be considered a classic. John Browning's firm made this 4.5-inch reflector according to the label and the Browning catalog "A Plea for Reflectors". The actual clear aperture is 4.3", the inner diameter of the mirror retainer.
 
--Ken


That is an absolutely gorgeous instrument Ken! Wow!! Just stunning!!! love.gif
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#131 oldscope

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Posted 07 August 2019 - 09:53 PM

Though it's mostly cast and rolled iron, it DOES have some brass. Dating from around 1865-75, it can be considered a classic. John Browning's firm made this 4.5-inch reflector according to the label and the Browning catalog "A Plea for Reflectors". The actual clear aperture is 4.3", the inner diameter of the mirror retainer.

 

--Ken

Every time I look at that stool, I just want to go out and milk a cow! Then go observing.

 

Bart


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#132 oldscope

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Posted 07 August 2019 - 09:56 PM

its sad if those telescopes just stay inside and don't get used 

that why I bought a few of my own 

my speculum metal mirror Gregorian does get out once in a while

I just need to be careful of humid weather 

You may want to investigate further but I understand that a dilute solution of ammonia will brighten speculum metal.

 

Bart F.


Edited by oldscope, 07 August 2019 - 09:56 PM.


#133 bremms

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Posted 08 August 2019 - 07:22 AM

The Fecker objective is dirty but looks OK.  I will be testing it soon.

I had a later 3" Fecker that turned out to have a Steinheil configuration objective.  Keep that in mind when cleaning the lens. I remove the lens, mark the elements and wash them with plain soap and water running water over the lens, final rinse with distilled water, then pat dry with soft cotton cloth.


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