Heading off to the US for a holiday in a few weeks and am going to take a Mamiya 645 with one lens attached for B&W film in addition to the colour imaging device (dSLR). Photogenic places we're going to include Yosemite, Death Valley & Utah (road trip loop out of LV).

This is going to be travelling in checked baggage. Should I mount a 55mm or 80mm?

Cheers, Nige