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Steve_M_M
scholastic sledgehammer
   
Reged: 06/09/04
Posts: 976
Loc: Moorpark, CA
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I just finished testing the unknown optical element. It is a 2x barlow of very good quality. In order to reach focus with a modern type mirror diagonal (Televue), it is necessary to have this piece in place of the telescope does not provide enough in travel on the focuser. Making a shorter ocular holder with alleviate this issue.
The pictures presented thus far show either straight thru or a turret diagonal using less travel. Somewhere along the past 60 years or so, someone must have acquired this piece which I am actually really happy to have. With a proper adapter, this little fellow should also allow the use of a diagonal in a Zeiss Asiola.
-------------------- 1956 Goto Optical 6" f15 Observatory Refractor
From the Titan Observatory as featured in S&T 1957-1959
&
1961 Nishimura 6" Reflector
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mustgobigger
Carpal Tunnel
   
Reged: 06/12/07
Posts: 2420
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interesting steve, i wonder if adding a unitron barlow to my 80mm unitron spotter would allow the same. Brian
-------------------- RV-6
Meade 826
Meade 880 Deluxe
Unitron's 114,128,140,142,150,152,155,160
4" Jaegertron
4.5" A.E f/14 Refractor
4" f/15 Edmund's Refractor
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Steve_M_M
scholastic sledgehammer
   
Reged: 06/09/04
Posts: 976
Loc: Moorpark, CA
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Yes, it might. The Unitron spotter also has the advantage of having an actual ocular holder. I would suggest first trying as short a barlow as possible. This old Celestron version is not bad.
-------------------- 1956 Goto Optical 6" f15 Observatory Refractor
From the Titan Observatory as featured in S&T 1957-1959
&
1961 Nishimura 6" Reflector
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mustgobigger
Carpal Tunnel
   
Reged: 06/12/07
Posts: 2420
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i do not have one of those. looks like it would do the trick. do they still sell those in .96 brian
-------------------- RV-6
Meade 826
Meade 880 Deluxe
Unitron's 114,128,140,142,150,152,155,160
4" Jaegertron
4.5" A.E f/14 Refractor
4" f/15 Edmund's Refractor
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