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New Astroscan / Help

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#1 Red Giant

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Posted 14 November 2020 - 06:04 PM

Hello, I got an Astroscan today...I’ve never owned one, and don’t really know anything about them.  I’m attaching some pictures, if someone could tell me what I have here I would appreciate it.  I’m not sure of the condition of the mirror...it hasn’t been used in years....it looks weird...I don’t know if it’s just dirty, or detoriated?  Also what eyepieces are these?

Jim

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#2 Photo-Dave

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Posted 14 November 2020 - 06:11 PM

Congratulations, those are excellent Edmund scientific eyepieces. I acquired a new to me Classic Astroscan earlier this year. They are bright because they are fast meaning wide F stop.

The front piece can be gently cleaned on the outside.

There are sites that cover the history and how to repair & maintain them. Great portable wide field scope.
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#3 Russell Smith

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Posted 14 November 2020 - 06:11 PM

As far as the scope goes, looks like it could be fungus.
As to the eyepieces, I have examples of all three and they are IMHO all keepers.
Nice score.
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#4 Photo-Dave

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Posted 15 November 2020 - 12:33 AM

There’s a split ring that holds the front element in place. You need to mark the placement/ orientation of the front element because the secondary is attached to it.

You can then compress that ring to release the front element so you can carefully clean it front & back.

Also VERY Carefully clean the Primary mirror if needed. Search for instructions on how to clean.

Somewhere on Cloudy Nights or elsewhere is complete guide and maintenance instructions. Do a search and Good Luck. They can be a great travel scope. Dave

#5 Red Giant

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Posted 15 November 2020 - 11:29 AM

I took the primary mirror out, it’s shot.  I got this package on a local pickup for a very low price, so I’m ok with that.  The eyepieces cleaned up very nice, can’t wait to try them.

 

Are there any options for a replacement mirror out there?


Edited by Red Giant, 15 November 2020 - 07:30 PM.


#6 Russell Smith

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Posted 15 November 2020 - 08:06 PM

Funny thing about the astroscan.

Edmund Scientific put it out there and demand was beyond expectations. 

Lots of examples are out there. 

Early ones could sometimes come with an eyepiece worth more than the telescope.

I don't know what you paid for yours but lots of them exist. 


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#7 Red Giant

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Posted 15 November 2020 - 09:13 PM

Ok thanks...I got the whole package for $40, the eyepieces are great...I was hoping to salvage the scope, but looks like I got some spare parts for the next one then.



#8 starman876

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Posted 15 November 2020 - 09:14 PM

there is a local vendor that might sell replacement mirrors. 

 

 https://www.cloudyni...rabolic-mirror/


Edited by starman876, 15 November 2020 - 09:21 PM.


#9 Nippon

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Posted 16 November 2020 - 05:35 PM

Perhaps you could have the mirror recoated.




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