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  #1  
Old 30-04-2010, 09:04 AM
Wavytone
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Phwoar !!! (drool)

Refractoritis or optical porn...

200mm f/9 folded oil-spaced triplet for sale on AM....
http://www.astromart.com/classifieds...fied_id=678320
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  #2  
Old 30-04-2010, 10:19 AM
cohiba (Robert)
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I wonder what a reasonable price is ????
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  #3  
Old 30-04-2010, 10:28 AM
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Omaroo (Chris Malikoff)
Let there be night...

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Optical porn indeed... and mechanical. What an amazing looking instrument.
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  #4  
Old 30-04-2010, 10:32 AM
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mithrandir (Andrew)
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Quote:
Originally Posted by cohiba View Post
I wonder what a reasonable price is ????
Your idea of reasonable might not match theirs.
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  #5  
Old 30-04-2010, 11:12 AM
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Steffen
Ebotec Alpeht Sicamb

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Oil-spaced triplet, eh? I wonder whether it needs oil changes once in a while…

Cheers
Steffen.
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  #6  
Old 30-04-2010, 05:39 PM
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Inmykombi (Geoff)
They aint just doubles :o

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I am still wiping the "dribble" off my chin.
How about the OTA weight ....42 kilos whoah....

Nice

Last edited by Inmykombi; 30-04-2010 at 06:19 PM.
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  #7  
Old 30-04-2010, 06:13 PM
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bmitchell82 (Brendan)
Newtonian power! Love it!

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NOM NOM NOM NOM NOM NOM.....
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  #8  
Old 30-04-2010, 06:23 PM
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Inmykombi (Geoff)
They aint just doubles :o

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Quote:
Originally Posted by Hans Tucker View Post
You are merging the two ads together the 200mm f/9 oil-spaced triplet is not the one in the photo's. What the photo's show is the Zeiss Jena AS 200/3000 Semi-Apochromatic Refractor which is a folded design.
????????


Here is what I mean as per the add. I am talking about the photos....

"AS 200 lens in cell 5.8 kg - weight dew shield : 1.45 kg weight tube assembly : 36.54 kg - summarize to total tube weight : 43.79 kg"

Cheers
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  #9  
Old 30-04-2010, 08:26 PM
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gregbradley
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When they say semi-APO I bet they are being very tough on it.

Its hard to imagine a really well made triplet exhibiting colour.

Greg
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  #10  
Old 01-05-2010, 09:11 PM
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Satchmo
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The light scatter from the two aluminised surfaces of the folding mirrors will make its' performance similar to a sub 20% obstructed well baffled Newtonian at about 1/10 the cost .

Ok , 'm such a party pooper...
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  #11  
Old 02-05-2010, 03:22 PM
Wavytone
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Quote:
Originally Posted by Satchmo View Post
Ok , 'm such a party pooper...
Hoo yeah, Mark... I still recall the views of Mars through the old Oddie (9" f/16) at 600X and the Reynolds (30" Cass) on a couple of nights of good seeing from Stromlo...

Someone I know had the good fortune to ride in the cage of the AAO on a rather poor night (not much more than sucker holes) when they pointed it at Jupiter... the detail visually just about blew his socks off, almost literally.
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