... Pedro, Assuming from your info you have an f/5 scope so you can go with anything from 32mm on down. I use a UO 32mm Konig and 22 Panoptic for low powers...
... EP ... and ... Phil and Perdro I just received the 30mm 80 degree 1 rpd. Basically this is a Widescan clone. I paid all of $99, see astrobuffet website....
... I let my a small allen/hex arm (wrench?) sit in the hex hole on top of the bolt, and then tighten the side hex screw. This then allows for quick hand...
Hi Everyone! First of all, thanks to everyone for your advice and support with the eyepiece emails I have sent recently. Your help will assist me in making ...
The seeing is great tonight in the NE (CT). It's hazy but, wow, Saturn and the Moon were (are) mesmerising. I don't have enough data points to be an accurate...
Dan, 2" barrels are only needed when the field stop or light path of the eyepiece is too large to fit in a 1.25" barrel. These will be really long focal...
... Pedro, If you have a large cache of money laying around, the Nagler 31 is almost a dream eyepiece for the 12.5. I say almost, because there is one problem...
... EP ... is ... pupil ... as ... A low cost alternative to the Nagler could be the 30mm BW Optic with 80 degree FOV and about $100. Not as good as the...
Hi all, I recently aquired a slightly used 10" DHQ f5.6, and am not sure my collimation is right. I had to install the spider and secondary and I am not sure...
Hello All, What would be a safe cleaning agent (soap, rubbing alcohol, etc...) to take care of eyepieces /multicoated/ ? I have couple of UO orthos that became...
Hello, and welcome. Sounds like you're on the right track. I personally never worry about 2ary offset, and if I'm not mistaken it's automatically factored into...
Hello Igor, I have a 2 stage process now for cleaning EPs. First I use an eyeglass cleaning fluid from LensCrafters (TeleVue recommends Windex, so I thought...
Here is a link I refer to when undertaking the task of cleaning optics...which should be done rarely. Hope this helps. It can be found at the site for The...
One of the darkest locations in the area would be Austin Nevada (north of Lost Wages) or Cima, California, Southwest of Interstate 15. Both locations are very...
Windex, if you can get it. Dampen a Q-Tip, squeeze off the excess and apply to the optical surface, then dry. Peace and clear skies, -- Dave ... From: Igora ...
Sorry to post this here,,, but it may be the best place for it... I am looking for a used discovery 15" PDHQ sonotube design Dob. thanks! replies to...
Hi There! I was speaking with Bill from Discovery last week and he told me that my 17.5" mirror was back from the coaters and was being assembled into the rest...
Catseye with an Autocollimator all the way. http://www.catseyecollimation.com/jflyhome.html http://www.amateurastronomy.com Steve ... [Non-text portions of...
Hi Dan, i have bought my collimator from baader planetarium. this one is constructed in a way that collimation can easily be done by a single person without...
Hi Dan, I ordered the 17.5 also! When did you order yours? Dan NM ... that my ... into the rest ... Dobsonian (my ... tackle ... using to ... that explain ......
For a good Newtonian collimation primer, check out: http://www.catseyecollimation.com/mccluney.html Jim Fly CATSEYE Collimation 7806 Wildcreek Trail SE ...
Hi Dan! I originally ordered a 15" TD in May, 2003. However, after waiting a while, I decided to change the order and have them start a 17.5" TD in October, ...
Hi Jim! I was on the website looking at the collimators. My question is, if I wanted to use the blackcat 2", is there anything else I would need for ...
... that my ... into the rest ... Dobsonian (my ... tackle ... using to ... that explain ... this forum ... this pretty ... using to ... that explain ... this...
I ordered the 17.5 TD f/5 on Dec 8th. I'm getting the observer package also minus the computer cause I have the Argo Navis goto already. I may order the...
Hello Dan, I am not a collimation expert by all means, however first colliamtion I did using Orion's deluxe Laser model was a straightforward process. Sales...
Right now I have a 6" Schmidt-Newt and I use the Cheshire to align the secondary under the focuser. Then I use a laser with barlow. Works great too! Dan NM ...