› Forums › Spectroscopy › Which camera ? › Andy,
4 July 2018 at 8:27 pm
#579687
![](https://britastro.org/wp-content/uploads/2017/01/picture-5979-1485519744-80x80.jpg)
Participant
Andy,
The polar alignment is good enough.
Are you saying that I need to use exposures between 5-30s on PHD guiding ?
Not sure if PHD guiding goes up to 30s.
Regards,
Jack
Essex UK