Eta Carina taken a couple of weeks ago. First run with a Hutech LPS-D1 lens mounted filter to help neutralize the colour cast from the full spectrum 6D. A conventional Vis+Ha filter gives a strong pink colour cast. With the new Hutech filter, daylight colour balance works well, gives a stronger Ha response and cuts much light pollution (if applicable), but you do loose some orange from Antares, etc.
