Hi I've just bought a Minox 35 EL for my daughter for a trip to Asia and Australia. Changed the battery and loaded with ISO 200 film. Took the camera out today so she could get used to it. It was a fairly sunny autumn day and the light meter almost always indicated an over exposure. She was forced to shoot with F16 all the time. Now I presume that her holiday will be even sunnier and she wants to take lots of shots in the sun. As she can't manually set the shutter speed I guess the only thing she can do to shoot at different F stops in sunny conditions is a lower ISO film such as 100 ? Correct ?