Quote Originally Posted by pbromaghin View Post
Your stops and shutter speed dials are infinitely variable analog, not hard digital clicks. Just put them partway between.
I'm not sure that is the case for the shutter speeds - some cameras yes, but does it apply for this Rollieflex's shutter?

And to the OP: less than one stop over-exposure would most likely work very well with Portra 160 and most other negative films. If you decide to shoot slide film, get back in touch!