RE: [ATM] considering different design

["Donald Good" <donald.good@comcast.net>]

George, talk about coincidence!
A search by whois shows that CustomOpticalSystems.com belongs to Tyler
Anderson in British Columbia.  A more specific Google search of "Custom
Optical Systems" and Anderson turned up this page with a link.
http://overclockers.com/articles1170/
It has nothing to do with ATM, but confirms that mike collins had the
spelling right.
Further checking shows that the DNS is broken for the
CustomOpticalSystems.com domain.  This is either a technical problem or
CustomOpticalSystems.com is out of business.

mike collins, how long ago did you come across the CustomOpticalSystems.com
site?
Don


> -----Original Message-----
> From: atm-bounces@atmlist.net 
> [mailto:atm-bounces@atmlist.net] On Behalf Of George Anderson
> Sent: Friday, January 07, 2005 8:23 PM
> To: Mark Holm
> Cc: atm@atmlist.net
> Subject: Re: [ATM] considering different design
> 
> A quick google search on "Custom Optical Systems" and looking 
> at Canadian sites lead me to Peter Ceravolo's web site.
> I couldn't find any reference to prices or designs, but off 
> the top of my head I'd have to say that Peter's stuff tends 
> to be beyond the abilities of a first time ATMer. Also the 
> exchange rate won't help too much these days, the Canadian 
> dollar is creeping up there.
> I'd go with the common concensus and build a Newt for a first 
> time scope. Attempting a Mak, Schmidt, or refractor as a 
> first scope is fraught with obstacles that would cause most 
> to give up in frustration.
> I am not saying that it can't be done, because it has. But 
> those few that have managed are legendary (DR take a bow) and 
> I doff my hat to them.
> 
> George Anderson
> Montreal Canada
> 
> Clear skies and good health
> 
> Mark Holm wrote:
> > 
> > I couldn't get that url to work.  Perhaps there is a typo?
> > 
> > Read the longish post I just wrote on the subject Re: [ATM] Mirrors
> > 
> > There are a whole bunch of advantages to doing a Newtonian 
> as a first 
> > scope.  Not the least of these is a bunch of willing and 
> experienced 
> > atms who have made them and can give good advice based on direct 
> > experience.  Building a telescope, especially the optical part is a 
> > challenge for the beginner.  Don't make it harder than it 
> needs to  be.
> > 
> > The subject of what makes the best planetary telescope has been 
> > debated many times over several decades.  Many VERY 
> knowledgeable and 
> > experienced people have contributed significantly.  These 
> include more 
> > than one PhD wielding professional optical scientist.  The 
> conclusion 
> > is that it is hard to beat a well made, medium to long focal ratio 
> > Newtonian.  By medium, I mean focal ratio of 7 - 9.  To do 
> better than 
> > a well made Newt, you will have to make a significantly 
> more difficult 
> > optical system to at least as tight, and very likely much tighter 
> > tolerances.  As Dave Berry often writes, I am most definitely not 
> > making this up.
> > 
> > --
> > Mark Holm
> > mdholm@telerama.com
> > 
> > _______________________________________________
> > ATM mailing list http://www.atmlist.net/
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