Binning Question

[Starwiz]

I've been using 2x2 binning for OIII and SII with my ASI1600mm-Pro, but does anyone use higher, such as 3x3 or 4x4 and is it beneficial to do so?

Thanks

John

[wimvb]

I haven't done it. CMOS cameras don't have the same level of S/N improvement as CCD cameras when you bin. And when binning beyond 2x2 you will start to lose detail. Unlike LRGB imaging, where you'd bin RGB to get away with shorter integration times and where the detail is in the unbinned L, NB imaging has no substitute for lost detail. You capture all the detail in each filter.

[Starwiz]

On 04/08/2019 at 00:46, wimvb said:

I haven't done it. CMOS cameras don't have the same level of S/N improvement as CCD cameras when you bin. And when binning beyond 2x2 you will start to lose detail. Unlike LRGB imaging, where you'd bin RGB to get away with shorter integration times and where the detail is in the unbinned L, NB imaging has no substitute for lost detail. You capture all the detail in each filter.

Thanks.

John