(meteorobs) Glass domes (was "Whizzer" - magnified and dissected)

James Beauchamp falcon99 at sbcglobal.net
Fri Jan 6 16:25:45 EST 2012

Hi Mark.  I've been wondering the same thing as Tom.    My acrylic dome is starting to milk due to the UV and weather exposure.   
There doesn't seem to be much "middle ground" with domes.  I don't need a dome with precision laboratory optical quality, yet want something better than the acrylic.
Hobby manufacturer maybe?

--- On Thu, 1/5/12, Mark Bowling <minador at yahoo.com> wrote:

From: Mark Bowling <minador at yahoo.com>
Subject: (meteorobs) Glass domes (was "Whizzer" - magnified and dissected)
To: "Meteor science and meteor observing" <meteorobs at meteorobs.org>
Date: Thursday, January 5, 2012, 5:41 PM

Edmund Optics has some glass domes available.  Small but still relatively pricey.  http://www.edmundoptics.com/products/displayproduct.cfm?productid=3147
Has anybody used these or have an opinion?
Mark B.
Vail, AZ

From: Jim Wooddell <nf114ec at npgcable.com>
To: Meteor science and meteor observing <meteorobs at meteorobs.org> 
Sent: Thursday, January 5, 2012 10:38 AM
Subject: Re: (meteorobs) "Whizzer" - magnified and dissected

Hi Thomas,

Yes the acrylic dome is a killer, for sure.  Most lens makers can supply
specifications on the warping created by the lens.
Sunex, for example, even has a program  called Dewarper to straighten out 
warping issues on specific lenses they make.  So, with the plastic cover, it 
just compounds the issues and  true optical dome covers are 

I have seen flower arrangements that use a glass dome/cover to protect the 
flowers.  I wonder if these might be any good or just better than the 
plastic domes???


Jim Wooddell

----- Original Message ----- 
From: "Thomas Ashcraft" <ashcraft at heliotown.com>
To: "Global Meteor
 Observing Forum" <meteorobs at meteorobs.org>
Sent: Monday, January 02, 2012 10:15 AM
Subject: (meteorobs) "Whizzer" - magnified and dissected

> It would be nice to have a research-grade optical quality glass dome
> that the camera images through instead of the dense acrylic dome which
> is somewhat distorting.

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