7 Sisters in LRGB

LRGB is a processing technique that is used a lot in Astrophotography. Basically you split off a lum image from your stack and do the sharping and deconvolution on that image. Then recombine. It brings up the color and gives you some star color. Also decimated some of the small stars to make it less busy. Still amazed at how much data the 7D2 gets in 90 sec. Way more nebulosity than the 7D and the noise level is practically zero at ISO1600. Thinking about having the 7D modified for strictly astro use but the 7D2 is so good I've been holding off. Seems to me the red is so much more pronounced on the 7D2 the removal of the IR filter isn't necessary. And the noise level on the 7D is so much more that I'm not sure it would be of any benefit.







This shot is 20 images of 90 sec ISO 1600 7D2 and EF400



Pirelli Challenge next weekend at COTA. I'll be able to put the 7D2 to the test then. Hope the weather gets better.



Griz