I finally found a photo lab with Noritsu scanning equipment that will turn off its default grain removal filter for me, after searching for one for a few years. In late 2012, A&I turned it off when they did about 3,000 Noritsu scans of 35mm film negatives for me. But the customer service person who was helping me back then is no longer with the company, and they were purchased since that time. In late 2014, A&I's current manager said "there's no de-grain filter" on the Noritsu. Richard Photo Lab and ScanCafe did test Nortisu scans for me in late 2014 and mid 2015, respectively. Both of them were either unable to figure out how to turn off the grain removal filter, or they don't want to. In late 2015, North Coast Photographic Services didn't answer my inquiry about whether they can and/or will turn it off. Finally, early this year, Photo Impact Imaging here in Los Angeles did over 500 Noritsu scans of 35mm film negatives for me, with the grain removal filter turned off as requested. In fact, the operator was befuddled over why it is such a big deal for other photo labs with Noritsu scanners to turn it off. They have become my photo lab of choice for scanning film. Here are a couple of comparisons showing the grain removal filter on and off, consisting of test scans that Photo Impact Imaging did for me. These images are drastically blown up and cropped from the original scans of the 35mm film frames. But I am able to see the difference at typical view sizes on a monitor.