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Equipment Discussions >> Classic Telescopes

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mustgobigger
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Reged: 06/12/07

Loc: Michigan
This One Came In Mail Today Brandon 4" F/1555
      #5438746 - 09/24/12 08:40 PM Attachment (99 downloads)

just the lens....Brandon 4" f=1555
wrapped metal tape around cell and dropped it in my 4" unitron
than taped it in place...no Collimation but i checked and all 3 circles were touching...not to bad but not spot on.
took it up to 222 on moon and it has great views.
this lens was made somewhere around 1948.
only a few were made.(100)
no color on moon unless i take it out of focus then
just barely.
the spacing is around a inch between crown and flint.
it needs a good cleaning and i will make a cell
to fit unitron tube.
unitron has been sitting without drawtube for a while
so i made one out of brass last week.
it was made with thick wall tubing and now its about
.030 wall and slides better than the original one.
woke up one morning and was having my coffee and
checking the bay...and there it was...buy it now.
here are a few pics.


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5438747 - 09/24/12 08:40 PM Attachment (61 downloads)

another

Edited by mustgobigger (09/24/12 08:41 PM)


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5438748 - 09/24/12 08:41 PM Attachment (67 downloads)

patsy viewing moon

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5438751 - 09/24/12 08:42 PM Attachment (52 downloads)

drawtube i made...just put bees wax on after 400 finish and
scotchbrite.


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5438752 - 09/24/12 08:44 PM Attachment (58 downloads)

the view

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5438755 - 09/24/12 08:45 PM Attachment (51 downloads)

last one
notice the aluminum block cradle is sitting on
i made that so my goto can drop down in slot like goto mount..
..works great.

Edited by mustgobigger (09/24/12 08:47 PM)


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444022 - 09/27/12 06:59 PM Attachment (36 downloads)

did some modifications to an old rear unitron i bought from
brian ...AKA happy idiot.
i did a tinsley like cell as it has radius on both halves
concave and convex to help center front half of cell while
collimating optics.
here are a few parts


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444027 - 09/27/12 07:02 PM Attachment (26 downloads)

still have to match tabs as i left them a little big
till i fitted everything.
going to paint and blacken after doing a little viewing tonight.
i modified inside of unitron part and fabed the other half.
made new springs and rethreaded the unitron part.


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444028 - 09/27/12 07:03 PM Attachment (24 downloads)

unitron inside...lower area that is cut has slight concave.

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444031 - 09/27/12 07:04 PM Attachment (24 downloads)

assembled...cell just screws on to part i fabricated

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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444036 - 09/27/12 07:05 PM Attachment (21 downloads)

on the ota...i left just a little of original lip
to seat tube.


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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444039 - 09/27/12 07:07 PM Attachment (32 downloads)

did collimation in about 2 minutes and still
on target with homemade drawtube extended.


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444045 - 09/27/12 07:10 PM Attachment (30 downloads)

hopefully i will get to powdercoaters this week and have mount
...pier and telescope done sometime next week....

Edited by mustgobigger (09/27/12 07:11 PM)


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starman876
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Reged: 04/28/08

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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5444149 - 09/27/12 08:22 PM

as always nice work Brian.

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Jae
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Reged: 04/13/06

Loc: New England
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: starman876]
      #5445401 - 09/28/12 03:23 PM

Excellent ! Very nice find, Brian.

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Dr Morbius
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Reged: 02/06/07

Loc: ManorvilleNY-but not for long
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: Jae]
      #5446067 - 09/29/12 12:00 AM

I must say, you do good work!

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akman1955
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Loc: Alaska, USA
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: Dr Morbius]
      #5447499 - 09/29/12 08:54 PM

Brian great work as always!! still have the "rare" polarex compact?? i have never seen another one.john

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: akman1955]
      #5447952 - 09/30/12 05:46 AM

Thanks guys,
John...yes I do.. .even found a polarex
drive for my 142.
Never finished box yet..its holding
Dew shield for Ap.


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JWW
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Reged: 12/12/05

Loc: Arizona or Mexico hard to tell
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5448618 - 09/30/12 02:40 PM

Sick ...

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clintwhitman
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Reged: 01/01/07

Loc: CALI SoEasyACavemanCanSlewIt
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: JWW]
      #5519246 - 11/14/12 09:31 AM

Very nice Brian!! BrandonTron

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: clintwhitman]
      #5519254 - 11/14/12 09:41 AM

Clint..this was my jaegertron...
I think it will stay this way...happy
With optics.


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starman876
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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: clintwhitman]
      #5519646 - 11/14/12 02:59 PM

Great looking scope, I have a 4" ota without a lens. I should put a Jeagers lens on it and see how it looks and works. Thanks for the inspiration Brian

Hmmm. you saying you like the Brandon lens better than the Jeagers lens?


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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: starman876]
      #5519743 - 11/14/12 04:02 PM

Yes

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oldtimer
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Reged: 11/13/08

Loc: Lake County Illinois
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5520048 - 11/14/12 07:46 PM

So your the guy that 'sniped' me on Ebay. Good luck with it!

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starman876
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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: oldtimer]
      #5520051 - 11/14/12 07:50 PM

By what degree is the Brandon lens better than the jeagers lens?

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: oldtimer]
      #5520084 - 11/14/12 08:16 PM

Quote:

So your the guy that 'sniped' me on Ebay. Good luck with it!




Didn't know you could snipe with a buy
it now.


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starman876
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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5520088 - 11/14/12 08:18 PM

You can't. Maybe you just beat him to it.

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jjbird
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Loc: Wisconsin
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5520157 - 11/14/12 09:07 PM

I believe oldtimer is referring to a Brandon 4" objective that just sold on the 'bay. (no, I did not buy it either!).

J. Bird


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oldtimer
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Reged: 11/13/08

Loc: Lake County Illinois
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: jjbird]
      #5521290 - 11/15/12 02:03 PM

Yes, you mean a 2nd one actually shwed up, amazing!

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: oldtimer]
      #5521438 - 11/15/12 03:31 PM

I woulda sniped you on that
one had I seen it.
what is sniping anyway..
Bidding higher than someone
Else?
If you want it bad enough
You'll own it.
makes no difference how much
Time is left...that's why they call it
A auction.


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starman876
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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5521630 - 11/15/12 05:47 PM

If I did not own a 4" flourite I would have bid. However the optics in that scope have satisfied my 4" cravings except for collectibles and a Zeiss APQ . Now what to do with all these 4" lenses

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oldtimer
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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5521694 - 11/15/12 06:31 PM

Definition of sniping on evil bay. Waiting until the last second of the auction before entering a bid higher than the current one and giving no time for a higher bid. Yes, perfectly legal.

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akman1955
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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: mustgobigger]
      #5521706 - 11/15/12 06:39 PM

i agree brian, thats why they "call it a Auction" Bid highest amount your welling to pay..not what you want to get it for..a big differance there

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starman876
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Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: akman1955]
      #5521829 - 11/15/12 08:01 PM

Wow, I though all of us who bid on ebay waited until the last second to bid. If you don't it will be doubtfull you will ever win anything unless your bid is through the roof

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Sean Cunneen
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Loc: Blue Island Illinois
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: starman876]
      #5521877 - 11/15/12 08:38 PM

That is a sure-fire way to overspend. I set a price and that's it. If I get it, I am the happiest guy on Earth. If I don't, I figure at least I didn't over spend. The days of sneaking away with a deal are far behind...

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mustgobigger
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Loc: Michigan
Re: This One Came In Mail Today Brandon 4" F/1555 new [Re: Sean Cunneen]
      #5532797 - 11/21/12 06:42 PM

ok after some bad weather i had a chance to do a little moon viewing with this brandontron tonight and
took it up to 518x on the moon.
there was some haze around the moon and i used a celestron
oreange barlow and a 6mm volacno top and views were fantistic but i need some guide cables on my pier mount
because it was a bit shaky at those powers.
anyway i give this lens a A+ ..views were sharp and i did not even pull out my good eyepieces.
i think i am going to try and find another one of these.


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