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  #21  
Old 07-11-2006, 11:12 PM
Dennis
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Quote:
Originally Posted by h0ughy
was the 2 time converter at prime on the camera and the scope adapter added to that?
Crikey and by the heck - I popped outside for 15 mins to try my GPUSB adapter and PHD guiding application and returned to find this runaway thread!

Anyhow, Msieu Hoff, here is a photo of the config.

Cheers

Dennis
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  #22  
Old 07-11-2006, 11:19 PM
Dennis
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Quote:
Originally Posted by h0ughy
SO who can ship a uv/ir cut 2" filter in less than 24 hours.......................
I suspect that York Optical in Brisbane will have a 2" Baader UV/IR cut filter. Worth checking if desperate.

07 3252 2061

Cheers

Dennis
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  #23  
Old 07-11-2006, 11:22 PM
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h0ughy (David)
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Quote:
Originally Posted by [1ponders]
I've been doing a bit of thinking, and I might have a way out of it. I have a 9X50 Stellarvue finder scope similar to yours. I could remove the eyepiece from that and put the SAC/ToUcam in there. If I can get it to focus, possibly with a barlow my problem could be solved. I'm still going to be imaging with the 8" and the SAC/ToUcam so I'll get some closeups. Hmmmm I'll have to snaffle my DSI IR filter to use on one of them. I hope it's fine tomorrow and my lovely wife feels like playing sorcerers apprentice again
mmmm too much information Paul, we don't need to know you use the wife for slave labour while you play with your wand , but you have inscribed in me an image I would like to see, the use of the small scope that is!
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  #24  
Old 07-11-2006, 11:25 PM
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h0ughy (David)
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Quote:
Originally Posted by Dennis
Crikey and by the heck - I popped outside for 15 mins to try my GPUSB adapter and PHD guiding application and returned to find this runaway thread!

Anyhow, Msieu Hoff, here is a photo of the config.

Cheers

Dennis

crickey! that is a monster of a teleconverter, I have never seen one like that, I have the straight 2 times Sigma DC teleconverter, will that do the same job for me? was focus easily reached? does the exposure time increase as as result? have I asked too many questions?
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  #25  
Old 07-11-2006, 11:27 PM
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h0ughy (David)
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Quote:
Originally Posted by Dennis
I suspect that York Optical in Brisbane will have a 2" Baader UV/IR cut filter. Worth checking if desperate.

07 3252 2061

Cheers

Dennis
Striker, someone buy it before Paul get out................only kidding. I hope it works for you
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  #26  
Old 07-11-2006, 11:28 PM
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[1ponders] (Paul)
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Good idea. Thanks. Or even Sirius Optics
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  #27  
Old 07-11-2006, 11:38 PM
Dennis
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Quote:
Originally Posted by h0ughy
crickey! that is a monster of a teleconverter, I have never seen one like that, I have the straight 2 times Sigma DC teleconverter, will that do the same job for me? was focus easily reached? does the exposure time increase as as result? have I asked too many questions?
Hi H0ughy

It is a very old (25 yrs) Teleplus Macro 7 element converter. The really nice thing about it is that when I get rough focus with the WO focuser, I then lock the WO focus lock and move to the teleconverter, which has a helical focusing ring that you can see in the photo. This “built in” focus ring is there for use with the macro settings of the teleconverter and it makes it so much easier to get best focus.

Yes - the exposure time doubles. If the native lens is at say, F8, then adding the teleconverter will make it an F11 system, so you do "lose" light. The image posted was 1/500 sec at 200ASA.

As your teleconverter probably does not have a focus ring, you will have to do all your focusing with the 'scope focuser. But other than that, your x2 converter should behave the same as mine; probably better if it is ED glass?

Cheers

Dennis
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