Firstly I am sorry for my bad knowledge of film photography as I have been shooting film only for a week
I am using olympus trip 35
question: I took out kodak gold 200 out of my trip when I finished it and put in kodak ektar 100. Only after a few exposures I remembered that I have to change the ISO setting from 200 to 100. Now I changed it to 100 and I have almost the whole film left to shoot. Is that a problem that I didn't set it to 100 before the first exposure? Is it going to affect my film in any way?