ruby.monkey
Veteran
The Pro TL can be made much lighter than the Pentax 645N by fitting a waist-level finder and basic wind-on crank. With an 80mm f/2.8 it still makes for an easy all-day-long carry; substitute a 45mm f/2.8 and 150mm 3.5 and it's still a reasonable load. Even adding the GL402 L-grip won't push up the weight much.