First clear night in a month. Last summer I got the 2inch Atila 3.5 HA filter. It helped a lot on the Deneb area bringing out more contrast but darken more stars in the process.
Tonight was my first chance to use it on Orion. For the first time in my nearly Urban skies I saw Banard's loop easily. Last year using the 7nm Baader I thought I saw it one time. No question about it tonight with the 3.5. I used my Mod3C with Nikon 50 mm 1.8 lens hand held. Very enjoyable at 26 deg F with no wind. I only stayed out about 4 minutes. Grab an go to the rescue.