[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

[APML] Couple more ST-4 questions



Thanks to the help of many of you, I was able to successfully (I think) guide some shots tonight.  Now, if someone could explain a few things to me, I'd really appreciate it.  1) What does the mode button do?  2) While guiding, what do those figures mean?  I know a few (I think), but some don't make any sense, and the manual doesn't go into too much detail.  For instance, A=. -0 5  The A= sometimes reads any of the following:  A1, A2, A3, A4...A8,AE, and A=.  (do they represent adjustments?)  They seem to go sequentially- up or down, but not always.  The . (dot), I believe indicates that a relay is engaged.  Then the two numbers are the corrections in x,y (right?).  3) When you do a calibration, what do the readings it produces mean?  For instance, after the calibration ran, it showed this:  E1 4  (then 3), E2 3 (then 4).  Do these numbers mean anything to me?
 
One last question... I got a bit overzealous, and hooked up the GEG, and tried to guide off-axis.  I found that no matter what I did, I couldn't get it in focus (in f/6.3 mode).  I tried the extension tube, and the best I could get was almost in focus with the extension tube literally hanging on by a millimeter, and the ST4 the same.  I could never get it completely in focus.  I double-checked the placement of the lens, even tried using a prism before the ST4 head, and tried a camera extension.  No luck.  Any ideas?  My setup is a 10" LX200, GEG, ST4, Nikon F2.
 
Any help is appreciated.
 
Thanks,
Frank