I have been using LF for a short time, and I have been reading a few articles co ncerning pre-exposure for transparency film. Two methods have been proposed: a white card or white plexiglass. Any preferences? Mention has been made of pre-exposing for Zone II or III on some film before lea ving home, and others have done the pre-exposure on-site with the camera in the position needed for the shot. Which is the better alternative? If one decides to pre-expose on site, what is a good step by step procedure? Spe cifically,should you pre-expose focused at infinity before setting up any needed camera movements, or is it ok to set all movements and then pre-expose before t he final exposure. Thanks
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