Incompatible image geometry

[bfleming]

I’m new to Pi and still having problems with incompatible image geometry whe trying to do my flats
Using a EOS DSLR and rasa 11 inch
Darks and bias done off telescope and using skyflats (AV mode)
Happily makes super bias. And master darks but every way I try to make a master flat I get the the above error
Would appreciate some help
Regards Bryan

[RickS]

Hi Bryan,

Without more details it's hard to hazard a guess as to what is going wrong but there are three things which determine the geometry of a sub - the width (pixels), height (pixels) and depth (number of channels.) I'd be checking to make sure that the bias, darks and flats are all compatible.

Cheers,
Rick.

[bfleming]

thanks
ill try again
regards Bryan