Finally, Sony representatives said they will proactively support the development of third-party lenses and adaptors for the E-mount. Because the E-mount has the shortest flange-sensor distance in the industry, there's more room to fit in an adapter and still have foreign lenses focus properly. Mr. Katsumoto made a point of saying that Sony was very much in favor of this, and was interested in proactively working with various companies to make more adapters. In a private conversation with Imaging-Resource.com Publisher Dave Etchells after the formal presentation, Mr. Katsumoto underscored that Sony would release full engineering specifications for the E-mount to third party adapter makers; a pretty unusual stance in an industry where manufacturers tend to jealously guard such information.
最后,索尼代表说他们将积极支持E卡口的第三方镜头和转接环的开发。因为E卡口有工业界最短的法兰距,所以有足够的空间安装转接环并且让第三方镜头能够对焦。胜本徹先生强调索尼对此非常赞赏,并且对主动和第三方公司合作制作更多的转接环有着很大兴趣。在和i-r的私人会谈上,胜本徹强调索尼将会把E卡口的全部工程资料交给第三方转接环制造者。这在业界是一个非常不寻常的举动,因为制造商一般更喜欢保持这些秘密。