ASI1600MC-Cool debayering pattern?

fnord123

In other forums (Cloudynights) I have been told that the correct debayering pattern for a ZWO ASI1600MC-Cool is GRBG. However, I am finding BGGR seems more correct.

Consider this raw image, that was captured using an ASI1600MC-Cool (old style with autoguider port) and SharpCap, with 300 gain, 1 bin, RAW16, and 50 brightness (offset):

If debayered with GRBG:

The color is obviously very green.

The noise level is higher (7e-3).

The Dumbbell when stretched has the wrong colors, even when doing an unlinked STF autostretch.

Consider the same image using BGGR:

The colors are much more even.

The noise level is lower (5e-3).

The Dumbbell has the right colors!

I see the same result if I take my collection of raw images, calibrate, batch debayer, register, and stack them. All of the above operations are using PixInsight 1.8.

The noise and the last bullet seem to me to be an argument for BGGR instead of GRBG. Is GRBG or BGGR the right way to debayer an ASI1600MC-Cool?

Sam@ZWO

I think this maybe because the data save in image file reversed order

so the bayer patter changed when you open it with other software

so just choose the correct color debayer method show the correct color