› Forums › Imaging › Atmospheric dispersion › high FR
26 February 2017 at 4:44 pm
#577981
![](https://britastro.org/wp-content/uploads/2016/11/picture-146-1478110706-80x80.jpg)
Participant
Thinking about it though, I guess in planetary imaging where focal ratios are invariably very high it is not so much of a problem
Robin