What Finder Do You Use?
Posted 02 February 2013 - 11:18 AM
Posted 02 February 2013 - 11:59 AM
Posted 02 February 2013 - 12:09 PM
Posted 02 February 2013 - 12:15 PM
Posted 02 February 2013 - 12:44 PM
The Telrad I admit to using as a glorified red dot finder for getting in the ballpark. And not using the degree spacings of the rings or Telrad finder charts.
It would be interesting to try the wide field eyepiece instead of the RACI as an experiment. It's easier to match up star patterns between the RACI and charts, but you eventually have to get to the eyepiece view anyway. The RACI may have an advantage in not changing eyepieces as much.
Posted 02 February 2013 - 12:44 PM
On the refractor...telrad.
On the go to SCT....the stock finder scope...until I am lined up, then the finder is no longer required and can go into your back pocket.
Posted 02 February 2013 - 12:53 PM
Posted 02 February 2013 - 01:18 PM
Same process with the Astroscan except I use a Rigel Qwikfinder because a Telrad won't work on the scope's stubby, rotund body.
Of course, it should go without saying that one should always use a low power ep during the finding phase but there--I said it anyway.
On my pier mounted C14, all I have to find is the hand controller. (Sorry, Goto is still new to me and it's like magic)
Posted 02 February 2013 - 01:29 PM
Posted 02 February 2013 - 03:10 PM
Posted 02 February 2013 - 03:46 PM
Just curious what finder you use? Is it a finder scope like the 9x50 RACI? Is it a refractor mounted? Or do you simply use an eyepiece? I am leaving the 9x50 for just the Telrad and the wide field eyepiece which I am finding easier on faint stuff. So what do you use? Thoughts on the eyepiece alone approach?
My choice of finders depends on the telescope as well as the conditions. A refractor with a 2 inch focuser and a focal length of 700mm or less provides a 3.5 degree TFoV or greater so a red dot finder to point to the region of interest is all that is required because the scope itself is essentially a super finder.
For longer focal length scopes, Newtonian in the 1200mm + range, I prefer a Telrad and a magnifying finder, usually a 50mm operating at 8x or 9x . If the skies are dark and clear, then it is very often possible to just use the Telrad and a widefield eyepiece though the magnifying finder is a nice fall back. If the skies are not so dark and clear, a magnifying finder is a necessity because there are regions of the sky that are sparsely populated, so there not enough guide stars visible to use the Telrad effectively.
Posted 02 February 2013 - 03:53 PM
Posted 02 February 2013 - 03:54 PM
Posted 02 February 2013 - 04:01 PM
Posted 02 February 2013 - 04:09 PM
Working on mounting an 80mm for a finder
Posted 02 February 2013 - 05:38 PM
Posted 02 February 2013 - 06:26 PM
Posted 03 February 2013 - 02:20 AM
Posted 03 February 2013 - 11:53 AM
Posted 03 February 2013 - 01:08 PM
Posted 03 February 2013 - 06:10 PM
Posted 03 February 2013 - 11:42 PM
1) Telrad (which is a dew magnet) and
2) Stellarvue 60mm RACI finderscope with a 24mm Panoptic eyepiece. In darker skies, it provides a worthy panoramic view in its own right.
On my NP-101 refractor, I have a TV Starbeam red-dot finder. Nice range of brightness control options, but only a single, rather large round dot pattern. However, the brightness control can be set to make the dot effectively transparent, yet still bright enough to easily see.
On my Megrez 90 refractor, I have a nice red-dot finder with variable brightness control and several choices of target pattern.