I was eager to look at Comet ISON images this morning, but a little disappointed with the second tail as it actually seems fainter in today’s pictures than it did yesterday. I think this is most likely due to differences in seeing conditions between the two days (maybe a little hazier for me today). Either way here are my latest ISON photos from this morning. Here is a page with all of my Comet ISON photos.
Here is just the luminance channel. You can see the second tail a little more clearly in the black and white photo.
Image details: 15 minute luminance channel (5×180) and 3 minute RGB. (1×180) at 3×3 binning.