"Daniel: I know almost nothing about the Norma shutter. I looked around a bit online, but I'm wondering if you could point me to a good place to learn more. What I've found so far has been confusing because it's been threads between folks who already know something about it. "
Hi Paul,
Buy a copy of the original instruction book. Here's a decent deal
https://www.ebay.com/itm/31395769502...Bk9SR5iShK_oYA
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