The Sky-90 nReducer is strictly an imaging device. Art Ciampi ... From: thesubwaypusher To: UncensoredTakGroup@yahoogroups.com Sent: Saturday, November 14,...
This is my first attempt at imaging at 10 min subs and -20 temp. The image here is six 10 min subs all in Hydrigen Alpha and all at -20. While some guys are...
Hello Craig, I have a few pictures on my website of the extension (75ft) that I use for my EM-500. Look under (Equipment Page 2). You can contact me...
I wouldn't bother to use a reducer or flattener visually. Rather than use a reducer just use a longer FL eyepiece. That will give you a wider field of view. ...
I have been searching around this forum and can't find the answer to this question. Could someone tell me how to use the reducer/flattener on the Sky-90...
Robert Sounds pretty easy. One serial 9 pin (female)to USB conveter, then plug the two cable together and then the USB into the PC. Couldn't be earier. I...
Don, I wonder if it would be beneficial to have the 7 arcsecond drift *centered* in the reticle ... so the star drifted right and then left around the "mean"...
Craig, You need a couple of these: http://www.amazon.com/Tripp-Lite-U026-016-Certified-Extension/dp/B0002D6QJO/ref=pd_cp_e_1 It is an *active* USB extension...
Hi I have an EM 500 set up in an observatory. I wish to hook it up to my PC in the warm room. I have a conduit in the plinth and wireways in the floor. I am...
Hi all, I went out last nigth to recheck my polar alignment. In the first attempt at precise polar alignment I used my TOA-130 with a 12.5mm reticle EP....
Don - Roughly align your scope by sight. Power on. Loosen the bolt holding the mount to the tripod a bit so the mount can move in AZ, and the clutch for the...
Excellent pic there well done. Tom. ... From: filippociferri <filippo.ciferri@...> Subject: [UncensoredTakGroup] NGC 6726 from Atacama with FSQ 85 To:...
Thanks everyone for your input. If it clears tonight I may check the alignment again and be sure the offset is correct and the bubble level is level. As far as...
Hallo and thank you for welcoming in the group, we would like to share a few thoughts, from our viewpoint of carbon fiber manufacturers. Choosing a carbon...
Hi Don It could be the case that your bubble level is not properly calibrated. If you have set up the mount very well polar aligned using drift method, and you...
Don, the EM200/400 have perfect polar scopes and they do a lot for you but before you start, the bubble must be leveled and the offset scale in a position...
Don, Did you setup the sliding ring thing on the back of the mount that is supposed to deal with offset from the middle of the "time zone"? In my opinion,...
Hi John, I'm in central NY. 45 degrees by 75 degrees give or take. I think the offset is near zero or one at most. I did a drift method to rid of DEC drift....
Hello to all Quite a long time I posted some images on this group, so let me present you the latest one done with my brave Newton MT200. Telescope = MT200...
We have a tube in stock. We can covert you telescope for you. Art ... From: tommack7882 To: UncensoredTakGroup@yahoogroups.com Sent: Wednesday, November 11,...
... Thanks for your input. Your measurements are hard to contradict, even by a master optician. Yes, I had looked at Public Missiles but was wary because...
The telescope in question is owned by Gary Walker of the Maria MItchell Observatory. It was he who measured the focus change. Art ... From: rlnielsen1960 To:...
Well, coeficient of Pyrex is 32.5 x10e-7/degre C. Carbon tubes are generally around 10x10e-7/degre C. Even if you put a carbon tube, some length of the optical...
Everyone, I seem to remember that Art said the carbon tube modification for the Mewlon 300 reduced the "effects" of temperature change by a factor of 32X. So...
... Hi Gene, Appreciate your thoughts on this. The logic behind not using carbon fiber with pyrex is that the primary to secondary distance remains constant...
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