[Startrek (Martin)]

The Purpose of Binning in Startools is to reduce the resolution of the image and to improve the signal to noise ratio SNR

Binning should be done after the first global stretch ( Autodev )

The presets are -
25% reduces image resolution by 25% , improves SNR by approx 4x
35% reduces image resolution by 35% , improves SNR by approx 2.9x
50% reduces image resolution by 50% , improves SNR by approx 2x
71% reduces image resolution by 71% , improves SNR by approx 1.7x

The default setting is 50%

DSLR’s benefit greatly by using 25% to 50% binning