Sony claims they can theoretically do f/0,63 fast Full Frame E-mount lenses!

During the Sony A6400 presentation (video here on minute 8) Sony officially addressed the (negative) E-mount myths that are “running” on the web:

Myth 1:
E-mount was built for APS-C but not for Full Frame

Back in September Leica CEO claimed that E-mount was designed for E-mount and therefore Sony had challenges in making FF work:

In 2010 (long before the first Full Frame E-mount camera launch) Sony stated that E-mount is made for Full Frame too (Article here on DC.watch).

Myth 2 and 3:
E-mount is too small to allow for f/1.0 lenses and it’s difficult to design fast lenses for E-mount

Sony also answered to the myth saying E-mount cannot allow for fast lens designs:

The theoretical fastest lens Sony can make is f/0,63 which is on par with the Leica L. Canon RF can do f/0,62 and Nikon can do f/0,58. But keep in mind that we will never reach those numbers  because the lens would be incredibly big, impossible to focus and expensive like a supercar

The Nikon 58mm f/0,95 lens is bulky, expensive (rumored to cost $6,000) and does work with manual focus only:

Nikon management creates all that fuzz back when they announced the Nikon Z with that huge mount. Truth is many Sony lenses are rated as being the best on the market. And the Nikon Z lenses we have seen so far are certainly good but not living up the “marketing-hype” and certainly are not better than what Sony has to offer.

Sony Tidbits…


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Sigma 56mm f/1.4 DC DN Contemporary E-mount Review (Lensvid).
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Zeiss ZX1 displayed at the Cp+ show but still no new info

Zeiss did display the ZX1 at the CP+ show but did not unveil further details about the possible release date. Dpreview posted a new ZX1 hands-on report. This is their summary:

One advantage the Zeiss has over previous attempts at Android-based cameras is that it’s not trying to compete on price with less-sophisticated mass-market models, meaning (in theory) fewer corners should need to be cut in terms of processing power or memory.

The company say they’ve also stripped the Android implementation back to the bare essentials and focused on building a camera interface, rather than trying to use any of the operating system’s built-in camera capabilities. And even in this non-final form, this decision appear to have paid-off, with the interface working smoothly.

If anything, it’s Zeiss’s decision to include an ISO dial, rather than an exposure comp control (or an unmarked dial to let you choose which you want access to), that took us longest to adapt to in our brief time with the camera. Zeiss believes that a lot of people will manually set exposure, leaving ISO effectively playing the role of exposure compensation. I guess we’ll see how that feels once we get our hands on a testable camera in the coming months.