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You will overexpose the film, but depending on the film you're using, it might not matter. Negative films like Tri-X, TMAX, and Portra 400 can all tolerate this overexposure without a problem. Positive (slide) films don't like any overexposure, so they will be washed out.

maximum probable if it has no dial it incredibly is a newerr digital camera, wherein the digital camera will examine the bar code on the action picture and automaticlly set the ISO for you. while you're making use of a clean digital camera and load your very own action picture (so there in no iso code) you will could go into the digital camera settings making use of your reveal menu and which will very on the form of digital camera you have.

It depends. If it's only a reminder, you won't have much of a problem.

If your camera has a built-in meter, just use 200, and either the next shutter speed up or the next aperture setting down.

It overexposes the film.