I read a lot about lensquality, filmsharpeness etc.. For a sharp picture my main concern at this moment is how to keep the film flat in the filmholder. Should I cut the strips in the filmholder and use spray (non-permanent 3M) to glue the f ilm inside? Does it affect the film? How do you store loaded filmholders if you want to keep the film flat inside and don't use glue? Is this a problem or shoul d'nt I be worried?