What is the aperture priority mode, aperture and sensitivity when shooting calligraphy exhibitions in museums during the day?

The sensitivity can be 400-800, and it doesn't hurt to improve it without much noise. The aperture depends on your lens. Generally, I open the aperture at 5.6, mainly by adjusting the shutter to adjust the TV file. You must have an iron fist and slowly adjust the shutter speed with exposure compensation. There will be no problem. It's all slowly tried out.