Dear Mike,
Thank you for your kind reply, it indeed helps me a lot. On the other hand, when a mentioned that the film will be shown on a big screen a meant: a THEATER screen (film festival) Therefore, I yet wonder whether the resolution you recommended will be OK (?) and match the rest of the footage –all regular 16mm film and transfered to Digibeta. Also, you are right: all my stills have a slow zoom-in. In addition to it, could you please briefly explain what deselecting to “Default scale to frame size” does to the pictures?
With best regards, Pete