› Forums › Exoplanets › CMOS v CCD for photometry? › ISIS and scaled darks
4 June 2020 at 10:57 pm
#582598
![](https://britastro.org/wp-content/uploads/2019/12/picture-5132-1575710618-80x80.png)
Participant
ISIS only scales the darks if the exposures are mismatched so as long as you used matched exposures it’s not a problem.
Regards Andrew