I was recently importing numbered stills and it seems that Premiere is using the Preferences Setting "Still Image Default Duration" for the entire clip of stills, rather than for each individual still. Is there any way to change this other than to edit the duration on the time line?
When importing a typical set of still-image files, do not check the Numbered Stills box in the Import dialog box. When that box is checked, Adobe Premiere Pro will import each still image as a single frame. This is an option useful for importing still-image sequences generated by various animation and editing programs, but not for importing still images downloaded from, say, a digital still camera.