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W.O + PST Success

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#1 MessiToM

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Posted 26 March 2013 - 03:09 PM

I knew it was a long shot going in using my BV with my PST. I could "just" achieve focus with the included e.p's but it was WAY to over powered with the barlow I had to use to get focus.

I am now satisfied with the magnification level and fov now.

I bought two new Scopetronix 32mm 1.25" e.p's for $50 shipped. They were cheap for testing.

I already had two barlows to experiment with. a "Knight Owl" 3x that has a removable lense that will THREAD ON TO MY B.V
http://i92.photobuck...zpsfc584a6d.jpg

Ive had this cheap shorty barlow for a wile. I take the lense off it and let it slide down the e.p "tube" on the PST
http://i92.photobuck...zpsda1e204d.jpg

The e.p's and lenses in use
http://i92.photobuck...zpsc1484d6e.jpg
http://i92.photobuck...zpsa68a6fb9.jpg
This gives me just little enough magnification for a full disk image, barely.

my only gripe is there is alot of eye relief with the Scopetronix e.p's. This is only an issue during daytime use without a light blocking shroud.

Anyways just posting results that "may" be cheaper than other routes for future reference.

EDIT* PICTURES ARE TO DARN BIG, LINKS ONLY NOW

#2 REC

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Posted 27 March 2013 - 09:24 AM

So, are you saying that the standard 20mm EP's won't focus by themselves in the PST. I have that setup, but thought the BV would be too heavy on that scope? Is the view worth it as I use a 12mm SP in mine all the time.

Bob

#3 MessiToM

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Posted 27 March 2013 - 10:36 AM

No they won't with or without the included oca. I could get them to just come in to focus with the two above mentioned barlows but it was WAY to much magnification that was to dim and would require perfect seeing.

#4 DaveJ

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Posted 27 March 2013 - 11:34 AM

No they won't with or without the included oca. I could get them to just come in to focus with the two above mentioned barlows but it was WAY to much magnification that was to dim and would require perfect seeing.


The only success with binoviewers in a PST are provided by the Denkmeier and the Siebert Optics solutions. With either of these, a full range of magnifications are possible with the PST.

#5 MessiToM

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Posted 27 March 2013 - 12:31 PM

Umm......my "success" dosent count? ^

#6 DaveJ

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Posted 27 March 2013 - 01:58 PM

Umm......my "success" dosen't count? ^


Well, of course it does. But you mentioned in a subsequent post that the magnification you achieved was just too great...

No they won't with or without the included oca. I could get them to just come in to focus with the two above mentioned barlows but it was WAY to much magnification that was to dim and would require perfect seeing.



With the solutions I linked, the magnification can be anything you want.

#7 MessiToM

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Posted 27 March 2013 - 02:43 PM

My first post stated I achieved the mag I wanted with different E.P's and the two barlows.....

I understand what you mean.






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