Because the rangefinders you will use this on have viewfinders that are designed for the angle of view of 50mm lenses, you will need a special viewfinder to put in the accessory shoe in order to properly frame your subject.

• 由于测距仪你将使用这对有取景器，这种设计是为视角的50毫米隐形眼镜，你会需要一种特殊的取景器投放配件鞋，以适当帧你的课题。