having difficulty creating flats

[bill]

Hello:
I am really a newbie to PI. I have watched tutorials via the internet, purchased Inside Pixinsight and have been playing with data acquired the other night. I use SGP  flats calib wizard to determine my target ADU (33000). Have captured my flats for each (LRGB) filter.
So I began by creating a Master Bias, Master Dark..no problems there. Saved them
Started with Blink and culled out my bad flats
Ended up with 15 blue flats @.63 sec.
When I calibrate using Image Calib, click on  'GO' I get the following error: APPLYING ERROR POLICY, CONTINUE ON ERROR...INCOMPATIBLE GEOMETRY..NO IMAGE COULD BE CALIBRATED
MY OUTPUT DIRECTORY: Master Bias (checked)  master bias has /master bias/integration.xisf
No Calib checked
Master Dark checked ..input Master Dark /integration.xisf
calib and optimize checked
Master Flat (unchecked)
I am sure it's pilot error on my part, but I have tried this 19 different ways from Sunday and get the same results.
Are my flats too short???
Or should I make a master flat using ALL of my flats (lrgb) (commingled first) then check master flat on the bottom and input the master from all flats???
Thanks for your patience!
Bill

[aworonow]

Sounds like you could benefit from a tutorial or two. For a start (where I started), see Harry Page's site: http://harrysastroshed.com/pixinsight/pixinsight%20video%20html/Pixinsighthome.html.

Incompatible geometry often means that the number of pixels in X and Y differ from those in the calibration images.

[bill]

Is the geometry problem because my darks and biases were binned 1x1 and flats for rgb were binned 2x2?

[pfile]

seems likely to me, since the bin 2x2 files have a different geometry than the 1x1

rob

[Stu]

You need to reshoot your calibration frames for your binning. 

[bill]

Thanks for the advice!!!....the more I thought about it last evening, the more that made sense. I was able to calibrate my lum FLATS (at 1x1). Will get back to you later with my attempts!!!!
Bill

[MikeOates]

You could also Rescale your master flat to match the bin 1x1 images if you can't retake flats that work. Not ideal but it may save a nights batch of images.

Mike