What is the best film, aperture and shutter in the studio?

Shooting in the studio, if you use flash, you must use M file. Use a shutter of 60 or 125, otherwise the shutter and flash are out of sync, and the film is either completely black or semi-black. The aperture setting is different from your flash index and shooting purpose. You should choose the metering point according to the shooting purpose through the flash index, which is calculated by the exposure instrument to ensure correct exposure. I think some people say to choose around 8, which is a common method used by most non-professional photographers. It's faster, but it needs more experienced photographers to master it accurately. The method is to estimate the aperture number according to the power and index of flash lamp, the number and distance of lamps, etc. Then check the exposure of the photo, and then decide to increase or decrease the aperture number according to experience until the exposure is accurate. As for the 8 aperture, it is estimated that watching an online teaching video is misleading. For beginners, it is more appropriate to use the exposure meter honestly.

If you use a continuous light source, it doesn't matter what you use. Just like outdoors, you can use whatever you like, and it doesn't affect.