我们所需的国产高档单反相机山夫时下，高中档单镜头反光照相机几乎都是青一色的进口货，以海鸥ＤＦ—３００为代表的国产相机（此处仅指单反相机）一直有销售不畅的问题，对此许多专家和摄影爱好者曾著文揭示原因、探讨对策、提出建议，抱着“匹夫有责”的热情，期望国产... We need domestic high-end SLR camera Shan Fu nowadays, high profile single-lens reflex cameras are almost all-green imports, the seagull DF-300 represented by the domestic camera (here only refers to the SLR) has been poor sales Many experts and photographers have published articles to reveal the reasons, explore countermeasures, make suggestions, and hold the passion of “everybody has responsibility”, expecting domestic ...