This info was actually posted there on CN for a long time. Useful reference, but not necessary to bring for use, just bring a narrowband and O-III filter.
rlow wrote:This info was actually posted there on CN for a long time. Useful reference, but not necessary to bring for use, just bring a narrowband and O-III filter.
What do you mean by narrowband filter? Which one are you referring to?
What if webcams are used? What filters will be helpful?