相对廉价的f42mm螺口镜头转各种卡口接口,是我国广大摄影爱好者关注的、长期不衰的热点话题之一。特别是把廉价的前苏联和独联体f42mm螺口镜头,通过用转换接环连接到各种卡口相机上,成为许多影友热衷的摄影器材实践活动之一。虽然全开光圈调焦、收缩光圈拍摄,给使用者带来? Relatively cheap f42mm screw camera turn various bayonet interface, is the majority of photography enthusiasts in China concern, one of the long-term hot topics. In particular, the cheap f42mm screw-in lenses of the former USSR and the CIS, connected to a variety of bayonet cameras with adapter rings, have become one of the many photographic equipment practice activities that are popular with film enthusiasts. Although fully open aperture focus, shrink aperture shooting, to the user?