- NEX stands for New E-mount eXperience.
- “E” is chosen because of the flange focal distance (mount-to-sensor distance) of eighteen (18) mm.
- With E-mount lenses, Intelligent AF (where the scene is continuously monitored for changes to ensure fast contrast detection AF) will kick in. This works in both still photo and movie shooting.
- During MF or DMF mode, you can rotate the focus ring to enlarge the image on the LCD by 7 or 14x.
- NEX-5 can record HD movies in either AVCHD (1920 x 1080 @ 59.94i / 50i) or MP4 (1440 x 1080 @ 29.97 / 25 fps). 60i or 50i / NTSC or PAL depends on where you bought the camera.
- NEX-3 records HD movies in MP4 (1280 x 720 @ 29.97 fps).
- The 3D Sweep Panorama photo is created by generating two shots – 1 for each eye – thus there’s no need for 2 lenses.
- The Auto HDR function now captures and combines 3 photos into 1 for a maximum of 6 EV between exposures.
- Other than the final HDR photo, an additional photo (the 2nd of the 3 shots) is saved.
- The NEX works with Apple’s iMovie.
- The NEX has only a single card slot, but it’s compatible with both Memory Stick and SD cards. SDXC is supported.
- The NEX is compatible with Eye-Fi cards, including the latest Pro X2 card.
- An optional optical viewfinder attachment (FDA-SV1) is available.
- An optional mount adapter (LA-EA1) lets you use your A-mount lenses (manual focus) on the NEX. But not with the 2 A-mount teleconverters.
- The new E-mount 18-200mm F3.5-6.3 OSS lens has an additional Active mode that also exists in some of Sony’s latest Handycam camcorders. Active mode allows the lens to shift over a greater range of motion, thus enabling even greater camera shake compensation.
based on info from info from several different websites and edited to the points I found interesting