What is 1A? UV or Skylight? How is it different from Skylight 1B? Under what circumstances do we use 1A filter?
Is it normal for 1A filter to have a warm color cast? It even slows the exposure by 1-stop.
And finally it is suitable to be used as a lens guard filter?
Is it normal for 1A filter to have a warm color cast? It even slows the exposure by 1-stop.
And finally it is suitable to be used as a lens guard filter?