Hiya, That sounds like you imported each render separately. You want to import them as a sequence of numbered stills. Your renders should have a number suffix on the file name, like "render001.tif, render002.tif, render003.tif", etc. When you choose "File / Import / File ..." in Premiere, select just the FIRST file in your sequence, and then check the little check-box labeled "Numbered Stills" at the bottom of the import file dialog box (it'll be greyed-out until you select your first file). Premiere then imports the whole sequence as one chunk of video. If your renders are NOT sequentially numbered ... It might be just as easy to rename the renders so that they ARE sequentially numbered, and then re-import them. But, if you've already imported them separately and placed them on your timeline in Premiere, then you can control the duration by creating a "virtual clip" ... Use the "Block Select Tool" in Premiere to select the whole sequence on the timeline, then "click-and-drag" the sequence to another location on the timeline -- this will create your "virtual clip". Then, just adjust the "duration" of your virtual clip to the correct value (30 stills equaling 1 second). Hope that helps!