Combining Two Different Exposures

[ZiHao]

Here I have two exposures, one properly exposed for the details of the moon, another exposed for the shadow of Earth. I have tried Dylan O'Donnell's method on merging the earthshine on Photoshop and also Aurora HDR software, neither of them works. Any suggestions?

 

 

Edited July 19, 2019 by ZiHao

[vlaiv]

I would try following - provided that both are shot at the same ISO and aperture, and only difference is exposure length:

Take earth shine image and scale it down by factor of two exposures (for example if long exposure is 800ms and short one is 100ms - divide signal by 8).

Then combine two frames using "max" values. After that use histogram stretch to bring earth shine into view.

[spillage]

I am rubbish a ps and gimp but just merging the two gave me this!!!

 

[vlaiv]

Quick fiddle around and I got this (not the method I recommended)