› Forums › Spectroscopy › Relative Flux Calibration › Similar experience
31 January 2017 at 12:55 pm
#577883
![](https://britastro.org/wp-content/uploads/2020/11/picture-1574-1605195049-80x80.jpg)
Participant
John,
I find the freehand drawing of the response curve can produce markedly different results with different attempts.
Also, the placing of the star on/in the slot (and what portion is recorded) also plays it’s part.
Don’t get paranoid about your setup – yet.
Keep on swimming.
Regards
Tony