I have a bronica s2 and recently acquired a RZ67. In order to get sharp focus on these cameras I use the pop up magnifier. My technique is to frame the shot at waist level then lift the camera to my eye for sharp focus through the magnifier. Then return to waist level and shoot This seems wrong because of the possibility of not getting the focus right at large apertures. I am fairly new to all this and I am looking for how experienced users go about this.