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Tiny Classic Pics and Observations

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#51 Sasa

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Posted 12 July 2019 - 02:14 AM

I don't use my E50/540 (click on the thumbnail image to get larger one)

 

 

th_E50a.jpg

 

too often (have too many similar sized telescopes). If I do, it is usually Moon, double stars (3 components of 12 Lyn, eps Boo, eps Hya, 38 Lyn, STF1333 to name some tough pairs for 50mm lens), or Jupiter

 

Jupiter_20150328_1947UT.jpg

 

But I could not resist to hunt for blazar CTA-102 when it was in outburst. At the end I manage to glimpse this 8 billion ly distant object with this tiny lens:

 

https://www.fzu.cz/~..._Telementor.pdf


Edited by Sasa, 12 July 2019 - 02:14 AM.

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#52 Van Do9:3

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Posted 12 July 2019 - 08:10 AM

ROLO!!!  As mentioned, my Swift 838 was underwhelming.  Thanks to your thread I was motivated to fiddle with it today.  Boy!!!  I am glad I did.  The elements WERE flipped, so an EASY fix.  Well, not as easy as I hoped, because I knocked the spacers off, and nearly lost one.  I had a to "tri-sect" a circle to properly place them again, but it was worth it.  The Newton Rings were centered, but not perfectly.  Still such an amazing change.  grin.gif

 

 

Scott,

 

Would you mind creating a post on your process to correct the objective? 

 

Thank you,

 

My



#53 rolo

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Posted 12 July 2019 - 09:09 AM

ROLO!!!  As mentioned, my Swift 838 was underwhelming.  Thanks to your thread I was motivated to fiddle with it today.  Boy!!!  I am glad I did.  The elements WERE flipped, so an EASY fix.  Well, not as easy as I hoped, because I knocked the spacers off, and nearly lost one.  I had a to "tri-sect" a circle to properly place them again, but it was worth it.  The Newton Rings were centered, but not perfectly.  Still such an amazing change.  grin.gif

 

I have been missing out.  Such a tiny scope, but big performance.  I am actually pretty shocked and impressed.  It took 175x on Jupiter AND Saturn.  Saturn was really low, but it still looked outstanding, especially considering the "tiny classic". 

 

I would have eventually gotten around to it, but this thread definitely set me ahead.  waytogo.gif

 

So, what I have observed, is the moon, Jupiter, and Saturn.  I spent a few minutes on an orangish star just a click or two down and over to the west of Jupiter.  Nice tight pin-point, and both sides of focus looked identical.  Looking forward to more. 

 

Here are a few pictures of the scope, mount, and tripod.  Not sure if the paint on the mount is original, and/or if the legs/hardware are either.  The paint on the hub and CW look a little suspect to me.  The OTA itself is in pretty nice shape.  Probably should re-grease the focuser, but everything is pretty smooth as it is.  It was definitely nice tonight.

 

 

Glad you got dialed in buddy! Sounds like its performing quite well too. 175x in a 50mm is pretty impressive too.



#54 Bomber Bob

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Posted 12 July 2019 - 09:41 AM

My Swift 838 is gone, but still in the family:

 

Swift 838 S09.jpg

 

It was my "seeing checker" & lightest EQ g&g.  At F14, it was a visual APO, and required no camera adjustments to suppress false color, either:

 

Swift 838 - Moon 20170402V04R01.jpg


Edited by Bomber Bob, 12 July 2019 - 09:41 AM.

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#55 rolo

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Posted 12 July 2019 - 10:06 AM

Y'all be showing off now!lol.gif


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#56 shredder1656

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Posted 12 July 2019 - 12:35 PM

My Swift 838 is gone, but still in the family:

Swift 838 S09.jpg

It was my "seeing checker" & lightest EQ g&g. At F14, it was a visual APO, and required no camera adjustments to suppress false color, either:

Swift 838 - Moon 20170402V04R01.jpg


You let yours go?!?! I didn't know that. By family, I hope you mean that literally.
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#57 shredder1656

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Posted 12 July 2019 - 02:14 PM

Scott,

Would you mind creating a post on your process to correct the objective?

Thank you,

My


I simply referred to info that has been posted in this forum over time. I will try and find the links to the threads that have details on the proper configuration and orientation. They can explain it better than I can. But, definitely glad to do so.
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#58 Kasmos

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Posted 12 July 2019 - 02:37 PM

Scott,

 

Would you mind creating a post on your process to correct the objective? 

 

Thank you,

 

My

One more time, but with feeling...

Achromat LENS Arrangements.jpg

courtesy of Badback


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#59 Bomber Bob

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Posted 12 July 2019 - 04:35 PM

You let yours go?!?! I didn't know that. By family, I hope you mean that literally.

Yes, our youngest grandson was scope-less, so he got the 838.  I need to get some pix of him learning to use it, and get 'em posted.


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#60 pdxmoon

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Posted 12 July 2019 - 05:06 PM

Forgot I had this sweet little Monolux 50. I've watched the moon with it!

 

monolux50-a.jpg

 

monolux50-b.jpg


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#61 Bomber Bob

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Posted 12 July 2019 - 05:14 PM

Forgot I had this sweet little Monolux 50. I've watched the moon with it!

 

My Monolux 4348 is Old Towa, too, with a very good lens.  Forgot I made some Moon shots with it:

 

M4348MOON20151215V07RG1S2.jpg

 

IIRC, I put this 50mm F12 inside my Monolux 4380's cradle with lots of foam, after I had motorized the EQ with an AstroMaster drive.

 

 


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#62 pdxmoon

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Posted 12 July 2019 - 05:16 PM

Bob, do you happen to know the model number of this Monolux 50 that I have?


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#63 Bomber Bob

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Posted 12 July 2019 - 05:24 PM

4348 is the only Model Number that I've seen for these Monolux tabletop 50s.  I bet yours is older than mine -- before Monolux decided on a model number (sorta like the Tasco 227x versions vs. 7TE).


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#64 Pete W

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Posted 12 July 2019 - 06:03 PM

this is such a great thread, thanks to everyone for sharing.  And no wonder I can’t find a cool mini scope...Charlie B and JW have them all!


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#65 rolo

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Posted 12 July 2019 - 06:09 PM

this is such a great thread, thanks to everyone for sharing.  And no wonder I can’t find a cool mini scope...Charlie B and JW have them all!

And I wanted to delete it! What was I thinking? lol.gif


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#66 rolo

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Posted 13 July 2019 - 11:46 AM

Okay Chuck, we're waiting for your input here. We know you have a nice collection small classics.smile.gif


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#67 Van Do9:3

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Posted 13 July 2019 - 03:14 PM

Agreed, this is an exciting and fun thread. Thanks Rolo for initiating.

 

There was a sweet 40mm Unitron that Dave Trott offered about a month back. If anyone here was the lucky one, please post. 


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#68 tim53

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Posted 13 July 2019 - 10:04 PM

I still have t figur d out what this is. 

 

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#69 shaesavage

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Posted 13 July 2019 - 11:57 PM

I've never seen anything like that before!


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#70 shredder1656

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Posted 14 July 2019 - 06:12 AM

Scott,

 

Would you mind creating a post on your process to correct the objective? 

 

Thank you,

 

My

 

Kasmos posted the info to which I was going to link.  But, if you need/want more, there are several threads about it.  I don't want to go too far down this road, in deference to the thread topic, but can PM a link or two if you'd like. 

 

In a nutshell, besides the diagram that Kasmos posted, with an properly ordered/assembled air-spaced doublet, you will see Newton Rings.  If you don't see them, the elements are improperly arranged.  I did not see them.  I have disassembled quite a few objective cells, but I don't believe I have ever actually found one that was previously put together wrong.  So, I had to review stuff I had read on here.  Some of the threads I read to figure it out:

 

#1

 

#2

 

#3

 

There are quite a few different threads besides these.  Search "crown and flint orientation" or some such.  I searched specifically the "Classics" forum. 

 

To keep with the thread, here is the mess I cobbled together for my "tiny" Swift.  I wanted to be able to mount it on my GP and try some cell phone pics.  It looks ugly, because it is, but it WORKED.  lol.gif  Not posting because I am proud, but because I have no pride.  LOL.  I just wish the seeing had been as great as the seeing the night before.  smirk.gif

 

20190712_221911.jpg

 

20190712_221903.jpg


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#71 Chuck Hards

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Posted 14 July 2019 - 09:22 PM

Here's a few, hopefully not too many have already been posted.

 

 

 

Unitron 105, on the morning of the August total eclipse in 2017.  Lunt 1.25" wedge.  This is the scope I watched the partial phases in.

 

Cell 05a.jpg

 

 

40mm f/19.7 home-made, old Edmund objective.

 

010.jpg  011.jpg

 

 

50mm f/20 home-made, old WW2 surplus objective.  Seen here on Edmund mount on home-made tripod, Vixen dovetail.

 

003.jpg

 

 

TAL-65 Russian Newtonian.  Built like a tank.

 

TAL 65 017.jpg

 

 

Milben 50 x 600mm.

 

002.jpg

 

 

Unitron 740, 750.

 

40mm 001.jpg   002a.jpg

 

 

Swift 838.

 

838 2 008a.jpg

 

 

Tasco Terrastro 

 

001.jpg  

 

 

Tasco 55 x 50

 

004.jpg

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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#72 CharlieB

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Posted 14 July 2019 - 09:26 PM

What a great lineup!


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#73 Chuck Hards

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Posted 14 July 2019 - 10:47 PM

Thanks Charlie!

 

 

Can't forget the Micronta 50x500mm.  One of my favorites, actually.

 

Micronta 03a.jpg

 

 

 

 


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#74 Chuck Hards

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Posted 16 July 2019 - 09:20 AM

A couple more:

 

Restored Asahi Pentax 50mm:

Asahi Pentax 50mm.jpg

 

40mm Asahi Jupiter on Jaegers military-surplus tripod:

40mm Jupiter.jpg

 

 


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#75 rolo

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Posted 16 July 2019 - 09:32 AM

I see lots of pretty pics and I appreciate y'alls contributions but do we have any observing reports?

 

I took the little FC50 for a quick peek at Jupiter and the moon during a cloud break last night. I always impressed with this little scope..

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  • f50-2-3.jpg

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