(meteorobs) "Whizzer" - magnified and dissected

George Gliba gliba at milkyway.gsfc.nasa.gov
Thu Jan 5 12:55:40 EST 2012


How about surplus glass optical domes, like the one below?

http://www.surplusshed.com/pages/item/m4065.html

Starry Skies,
GWG






On 1/5/12 12:38 PM, Jim Wooddell wrote:
> 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
> pricey....$2k-10K.
>
> 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
>
>
>
> Jim Wooddell
> http://k7wfr.us
>
>
> ----- 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
>
>
> <snip>
>> 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.
> <snip>
>
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