SX-H694

[si6pack]

Hi,

I am suffering from a problem with Sequence (latest version) and my SX-H694 - whenever I try to autofocus, I receive the error message "could not receive focus" - continue retry etc. 

I know from former times, that the box "readoutmodes" in the CCD setting menu should be unchecked. I was using SEQ with my FLI CCD and there was no problem at all...just switching the CCD led to the problems...

Maybe there is a user who could is using also a Starlight Xpress CCD successfully and is will to share his setting with me or tell me how he/she made his/her baby work.

Every hint is very much appreciated!

 

Kindest regards,

Christian

 

[si6pack]

Additional info:

Imaging for pointing pictures works fine...there seems to be an issue if it comes down to focusing...

Maybe the embedded ACC in Autoslew is the problem? I will re-visit this issue tonight...

 

However, every thought and hint is appreciated...

 

Regards,

Christian

[si6pack]

Ok, here comes the solution:

I  had to manually edit the Sequence.ini file...

 

[Autofocus Settings]

First Exposure Time=1

Shortes possible Exposure Time=0,1

Longest allowed Exposure Time=5

First Move Step (mm)=0,42

Fine Move Step (mm)=0,21

Start Binning=2 "initially 3 was set here"

Start Box Size=1000

Final Box Size=200

Maximum Way during Focusing=5

Averages on first focusing=1

Averages on fine focusing=2

Minimum Star Brightness=1000

Maximum Star Brightness=50000

Target Star Brightness=5000

Use frame set in MaximDL=TRUE

Focusing Timeout (seconds)=30

Focusing Initial Wait time until checking for position reached (seconds)=1

Focusing Slew Settle Time=1

Readoutmode of CCD during Focusing=0 "initially -1 was set here"

Filter used normally for Autofocus=1

Slope (HFD per Focuschange in Pix per mm=0,0212

Focuser Tolerance in mm (when a new position is accepted)=1

Time in Minutes when at least an Autofocus should be made=40

If a slew from last Autofocus is larger than that it will make new Autofocus=40

Never make Autofocus checks during Sequence=False

Autofocus every new line=False

Binning for HFD Calculation=2 "initially 3 was set here"

Interpolation for Brightest Pixel determination=2

 

After manipulating these settings manually, autofocus works as with my FLI.

I suppose, that there might be a problem with saving the ini-file if you change settings within SEQ - just my two pence...

 

Regards,

Christian

[Waldemar]

Hi Christian,

 

Glad you solved the problem. I thought it could have been an issue with the ascom driver (http://www.daddog.com/ascom/sxcamera)

 

Best regards,

Waldemar