Eastern Veil NGC 6992 10.7.13

Unfortunately I don't have a direct comparison from using the same equipment but different filters. With regards to how it improves on the cls, I find that there is no colour cast and the colour balance is better, it has a much better response to blue and I don't need as much exposure time.

Results are obviously going to vary from location to location depending on the specific light pollution of your observing area but having used the clip in CLS and the 1.25" in various setups I found the improvement from my location with the IDAS was much improved and I put the CLS filters up for sale.