I got some technical details from my boyfriend regarding the pictures he took on Monday while he was on the lookout for Perseids. He uses a Sony Cybershot DSC RX-100. He didn't use any filters for these shots, and did a 30-second exposure. He enhanced the color slightly using Photoshop Elements. I hope this helps. Could I ask anyone who can to share this to the Photography Kinja? I know a few people there were asking for it. Thanks!