I'm
coming into this late, so I may be off target, but in Nebulosity for the 683
your choices are 0 (low gain) and 1 (high gain).? I've never used my 683
with ASCOM or anything else.? It works great with
Neb.
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Not sure it matters, but my camera is a 632 - different chip. ?But
assuming that the “dedicated QSI Maxim Plugin is the "QSI Universal” option
under the camera selection window, method 1 does not work. ?Gain remains
grayed out on the exposure screen with the camera connected. ?Also, I want
to get this to Auto for good, not image to image.?
Method two appears to work for the gain, but I can’t take bias frames.
?I get an error message that my bias frame violates the minimum exposure
setting for which there is no zero option. ?
Thoughts?
On Oct 24, 2023, at 3:43 PM, WILL B <william.bristow@...>
wrote:
Hi Bruce.
To change the QSI 683 camera gain in MaxIm depends on
the driver method that you are using to connect to the camera, plus there are
differences in the appearance of the driver setup menus depending on the QSI
driver version you have installed but the following generally applies when
using MaxIm with a QSI683.?
1. If you are using the dedicated QSI
- MaxIm Plugin as the driver type then you can only change the gain when the
camera is plugged-in, powered up, and “Connected” in the Setup tab of MaxIm’s
Camera Control window.
When the above conditions are met then you can
access the gain control drop-down menu on the “Expose” tab of MaxIm’s Camera
Control window, otherwise the gain menu will remain “greyed out”.
2. If
you are using the QSI ASCOM driver to connect to the camera in MaxIm then the
opposite conditions apply since the ASCOM driver does not permit the gain to
be changed once the camera is “Connected” in MaxIm’s Camera Control Setup tab
and the only way to change the gain setting is to plug in the camera USB cable
and power up the camera then in MaxIm’s Camera Control window, Setup tab, do
not “Connect” to the camera but click the “Setup Camera” button, select
“ASCOM” as the camera model then click the “Advanced” button to select the
“QSI CCD Camera”, then click the “Properties” button to enter the QSI
Configuration - Main Camera window, where you’ll be able to select the
required gain, only as long as the camera is physically powered up and
plugged-in via USB, but not yet “Connected” to MaxIm.
After you exit
those ASCOM config pages and return to MaxIm’s Camera Control window and
finally “Connect” to the camera in the “Setup” tab then the Gain setting is
fixed and can’t be changed again until you “Disconnect” from the camera in
MaxIm’s Camera Control window - Setup tab and repeat the
above.
William.
