Hands On: Do Sony NEX Lenses Work With The Sony A7/A7R? [Video]


Two of the latest and greatest mirrorless cameras taking the photography world by storm are the Sony A7 and A7R. They aren’t exactly replacements for the NEX line of mirrorless cameras, but they do share the same E-Mount lens mounting system. That means, in theory at least, you should be able to attach any lenses you purchased for a Sony NEX camera to the new A7 or A7R.

But it’s not that simple.

The entire line of NEX cameras use an APS-C sensor with a 1.5x crop, and the lenses made for them are designed with that crop in mind. If you’re using Sony’s 16mm f/2.8 pancake lens on the NEX-7, for example, you’re effectively getting a 24mm image once you factor in the 1.5x crop factor.

So, you’d think if you put that same 16mm f/2.8 pancake lens on a full-frame camera such as the A7 or A7R, you’d get rid of the lens cropping and get a full 16mm view, right?


In the video below, I show you three different Sony NEX lenses mounted on my Sony A7 and how each performs. First, we look at the 16mm f/2.8 pancake, then we add Sony’s fisheye converter to it. Next, we look at my favorite lens, the 10-18mm f/4 super wide angle lens (spoiler alert: it works, sort of!). Last, we’ll look at the 18-55mm kit glass that shipped with the NEX-7.

If you have any questions about the NEX or A7/A7R cameras and compatible lenses, let me know in the comments at the source link below or on Twitter: @mbchp.

[Source: Backpacking Earth]

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  • brian p.

    off topic, but what’s that tripod you have the a7 mounted to?

  • Guest

    One important detail – when you turn on “Capture APC-S size” the image is not downsized, it is cropped to APC-S size. It’s not just that the resolution decreases, the image is actually cropped to a 1.5 factor (same angle of view as if you took the photo through your NEX 7)

    • Tom

      It captures only the central part of the sensors is exposed to, leaving the edges out of the final print.
      That’s why the file is smaller-there are less pixels involved