Sony E-mount

The E-mount is a lens mount designed by Sony for their NEX ("New E-mount eXperience") and ILCE series of camcorders and mirrorless cameras. The E-mount supplements Sony's A-mount allowing the company to develop more compact imaging devices while maintaining compatiblity with 35mm sensors. E-mount achieves this by:

The short flange focal distance prohibits the use of a optical viewfinder as a mirror box mechanism cannot be included in this reduced distance. As such all E-mount cameras use an electronic viewfinder.

Initially E-mount was implemented on the Sony α NEX-3 and NEX-5 consumer targeted devices with APS-C sized sensors. E-mount integration into Sony camcorder products was provided with the Sony Handycam NEX-VG10. On 24 August 2011 new products were announced, specifically the NEX-5N as a successor for the NEX-5, and the NEX-7 as a prosumer product, as well as the NEX-VG20 as the successor to the NEX-VG10. The Sony E-mount was brought to the 35 milimeter video camera market with the Sony FS-100.

The first third-party camera to use the E-mount was the Hasselblad Lunar, announced at photokina on 18 September 2012 and released in early 2013.

In September 2013, Sony announced the first model from new ILCE series, the Sony α3000. In October 2013, the first models with full-frame sensor size were released, the Sony α7 and Sony α7R.

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