Re: [APML] Need for a 300 mm "CCD scope"; was: (OT) IC1396 CCDwith Schmidt-like FOV

[Brian Sledz <brianhome@linkus.net>]

The SBIG site had a small Lurie Houghton designed scope for wide field.
They said they put it on the back burner.   IIRC it was a 100mm f2.8???
Brian 



On 8/6/02 3:04 PM, "lkt" <tan@cox.net> wrote:

> Now what would be very cool would be a very small Newtonian type design.
> Maybe a 2" aperture f/3 instrument (150mm FL). The central obstruction
> might be 1". Sure this is 50% but the resolution per pixel would be poor
> anyway. I wonder if a 1" secondary might fully illuminate the KAF3200.
> This would have a carbon fiber tube and Sitall optics for temp.
> insensitivity. It would fit in the palm of your hand. I do not know if
> it's possible. 
> 
> Loke
> 
> 
> Gene Horr wrote:
>> 
>> Bert Katzung wrote:
>> 
>>> Thanks for the input---that Tak scope and its price are a very useful
>>> yardstick! Is that no longer available?
>> 
>> No, they stopped 3 or 4 years ago.  There wasn't enough demand (hmmm.
>> A bad datum....) much of this may have been due to the lack of back
>> focus, though.  You couldn't use a diagonal hence it was a poor choice
>> for a visual instrument.  One heck of a little pocket astrograph, though.
>> 
>> Gene Horr
>> genehorr@texas.net
>> 
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