I only rarely take flash photos, but I took a couple inside a church in Montrichard a few days ago. I was using my old Panasonic ZS1 camera. I stopped to see the church on the spur of the moment, just because I've driven past it hundreds of times over the past 15 years but had never seen the interior.
It was very dark and cold inside the church. The weather outside was cloudy and gray. Using the flash was about my only option, and I couldn't really see what I was taking pictures of.
I did take some pictures of stained glass windows, and then I went outside and photographed some of the stone carvings along the roofline of the church. I don't know why it's called Notre-Dame de Nanteuil, but it's been here since the 12th century.
Here's the exterior of the church. It sits near the Montrichard train station, a little way outside of the center of the town. This exterior photo didn't require using a flash, of course. I'm posting these photos in large sizes. If you click or tap on them a couple of times you can see enlargements.