Mike,
Yes, you have a nice scope there, glad you have the issue resolved. My Foucault
tester needs some work. Did you find your lens cap?
Dan
From: sas-bounce@xxxxxxxxxxxxx [mailto:sas-bounce@xxxxxxxxxxxxx] On Behalf Of ;
Michael Finch
Sent: Monday, April 24, 2017 2:28 PM
To: sas@xxxxxxxxxxxxx
Subject: [SAS] Re: Foucault Tester
Thanks.
On Apr 24, 2017 2:18 PM, "David Luders" <LudersDG@xxxxxxx
<mailto:LudersDG@xxxxxxx> > wrote:
It's good that the problem is solved -- the views of Deep Sky Objects through
your 16" Orion Dobsonian are very nice!
_____
From: sas-bounce@xxxxxxxxxxxxx <mailto:sas-bounce@xxxxxxxxxxxxx>
<sas-bounce@xxxxxxxxxxxxx <mailto:sas-bounce@xxxxxxxxxxxxx> > on behalf of
Michael Finch <michael.finch96@xxxxxxxxx <mailto:michael.finch96@xxxxxxxxx> >
Sent: Monday, April 24, 2017 12:52 PM
To: sas@xxxxxxxxxxxxx <mailto:sas@xxxxxxxxxxxxx>
Subject: [SAS] Re: Foucault Tester
Problem solved. Since I had no room to move the primary back, I called Orion.
Turns out there is nothing wrong with the scope. There is an focus tube
extension I may not have received (I have to check tonight) that adds about 1
inch to the travel of the focuser. Using that will definitely solve the
problem.
_____
Message from:
Michael L. Finch
Spokane, WA 99208
E-mail: michael.finch96@xxxxxxxxx <mailto:michael.finch96@xxxxxxxxx>
On Sat, Apr 22, 2017 at 3:02 PM, David Luders <LudersDG@xxxxxxx
<mailto:LudersDG@xxxxxxx> > wrote:
Michael, perhaps your Orion 16" Dobsonian's mirror is too far forward. Is
there a way of adjusting your primary mirror so that it is closer to the
ground, away from the secondary mirror? I recently had a similar problem with
my classic Edmund 4-1/4" Reflector, but in that case the mirror was too far
away from the focuser:
https://www.cloudynights.com/topic/573299-classic-edmund-425-reflector-cant-focus-with-plössl-eyepieces/
. According to the sales literature, your Orion may actually be f/4.4 (per
http://www.telescope.com/Telescopes/Dobsonian-Telescopes/Truss-Tube-Dobsonians/Orion-SkyQuest-XX16g-GoTo-Truss-Tube-Dobsonian-Telescope/pc/1/c/12/sc/29/p/102659.uts
).
_____
From: sas-bounce@xxxxxxxxxxxxx <mailto:sas-bounce@xxxxxxxxxxxxx>
<sas-bounce@xxxxxxxxxxxxx <mailto:sas-bounce@xxxxxxxxxxxxx> > on behalf of
Michael Finch <michael.finch96@xxxxxxxxx <mailto:michael.finch96@xxxxxxxxx> >
Sent: Saturday, April 22, 2017 2:06 PM
To: sas@xxxxxxxxxxxxx <mailto:sas@xxxxxxxxxxxxx>
Subject: [SAS] Foucault Tester
Does anyone in the club have a foucault tester? I have a new 16" f4.5 and I
believe it may actually be f4.7(ish) based on having to rack the focuser out
all the way and insert the eyepiece only about 1/2 way into the focuser. If if
is infact greater than f4.5, I need to send it back but want to be sure.
Thanks
Mike
_____
Message from:
Michael L. Finch
Spokane, WA 99208
E-mail: michael.finch96@xxxxxxxxx <mailto:michael.finch96@xxxxxxxxx>
