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hbaidu / open-phd-guiding

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Changing gain on SSAG has no effect #100

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
From message on forum 
https://groups.google.com/forum/#!msg/open-phd-guiding/KvV7W7AcoTg/V3Ld6Wv_JvAJ

PHD v2.0.5c; Mac OSX 10.8.4.

Camera gain control in "brain" not working. No change.
The same as for PHD 1.14.2. Have mailed Craig before.
/Thomas

Original issue reported on code.google.com by andy.gal...@gmail.com on 19 Jul 2013 at 5:17

GoogleCodeExporter commented 8 years ago 
An update from scottxray2001 on [stark-labs-astronomy-software]:

I was having a problem with PHD2 in that the camera gain from the SSAG seemed 
to be limited to about 1/5 the gain of PHD.

I had initially installed the 1.14.2 version and the alpha of PHD2.
Recently, I installed the Beta and deinstalled the alpha. In both 
of the PHD2 versions the guide stars were extremely dim and harder to use, to 
the point that I had to drop back to PHD 1. Trying to figure this out while 
trying to image also was not in the cards , as PHd1 was working. However, the 
more advanced features of PhD2 were highly desired.

Today I took an M42 lens adapter and mounted a 50mm lens on the SSAG. The same 
result occurred, PHD 2 guide images required 4-5 times the time setting to get 
the same general screen brightness. This seemed to be a problem with camera 
gain. However, since it was easy to test things I found a solution, and now get 
normal gain from the SSAG in PhD2. This problem may only occur to those that 
installed version 1.14.2 of Phd and one of the Alphas. 

Once PHD2 is open and running do not connect to the camera or scope. Simply 
click on the Brain and open the Global settings. Then Check the reset 
configuration box, and click on the Ok box below. That's it! Gain seems to be 
the same in Phd 1 and 2. Apparently some corruption of the settings must have 
occurred at some point and the settings stick until you clear them.

I am looking forward to using Phd2 for my next session. Hopefully this will 
help anyone else that may have had the same issue.

Original comment by andy.gal...@gmail.com on 3 Sep 2013 at 1:21

GoogleCodeExporter commented 8 years ago 
Another Followup message from Scott:

I was able to overcome the problem with the SSAG gain by using the Reset 
configuration check box in the
brain (global) setup, and clicking the OK box.    Apparently some value from 
the  install was not being set properly
even if the install was just completed. After clicking the reset box and 
restarting PHD2 the camera gain for the SSAG
seems to work properly and  now seems to be nearly the same in PHD 1 and 2.   

Since I had previously installed an alpha version without the windows installer 
and the 1.14.2 version, perhaps
there was some value transferred over to the new program?  I also tried to 
deinstall the Alpha (with no change to camera
gains) first.

So, with a fresh install, it might be best to select this global reset as a 
general rule of thumb to make sure no garbage
is affecting things before trying any guiding.

Original comment by andy.gal...@gmail.com on 9 Sep 2013 at 11:42

GoogleCodeExporter commented 8 years ago 
PHD 2.1.3a and Mac OSX 10.9

I have tried the reset trick without success. Problem still present. Note! Mac 
OSX

/Thomas

Original comment by thander...@gmail.com on 8 Dec 2013 at 8:45