[Joshua Bunn (Joshua)]

Hi All,

The bellow crop is from the coal sack. Its an averaged stack of 34 x 27sec exposures at 80 odd mm FL, Polar alignment was rough. A dark frame of the same exposure was subtracted from each image before averaging. The camera was a 6d at 3200 iso. Like i said, the streaking is not in each individual exposure, so i think its a problem with how im stacking or aligning the layers.

I did it in PS6, auto aligned layers, then adjusted the opacity of each layer accordingly, then flattened the image. Is there a better way to do this?

thanks
Josh