|
I read somewhere, somewhen, on IIS of a trick to reveal star colours in long-exposure star-trail photography.
Defocussing the image increases the apparent (but now unfocussed) star diameter - this reveals otherwise non-obvious colour.
It also preserves your field of view, which you otherwise lose by increasing ep magnification.
Try it & let us know how you go!
Dean
Last edited by deanm; 12-11-2013 at 05:28 PM.
Reason: Spulling!
|