I have over 20,000 nude and naughty photos, and hundreds of videos of my wife. With that said, she has told me she doesn't mind me taking photos or videos of her since they are only for our viewing. Sometimes candid photos or videos are better quality and more enjoyable because she is acting normal in a natural environment instead of posing. Therefore, I have done this and told her directly afterwards.
Here's my opinion on the question...If they are not into taking erotic photography, the husband should get a one time approval, then he can candid photo or video all he wants. Being as they were not shared and the wife was informed afterwards, what is the huge issue. Now it would be incredibly different had she found a stash of videos and photos of her in the nude that went back over years that she wasn't aware of.
However, in this day of technology, she might want to now check for tiny spy cameras. Who knows what he has filmed.