Fuji 23 1.4 vs. Sony A7 35 2.8

Started 11 months ago | Discussions thread
Red5TX
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Re: Fuji 23 1.4 vs. Sony A7 35 2.8
In reply to DonSantos, 11 months ago

DonSantos wrote:

FF vs APS ~ 1 stop less DOF APS

f/2.8 vs f/1.4 = 2 stops less DOF

2 -1 = 1 stop shallower DOF in favor of Fuji wide open!!! In a smaller, more attractive system. Sorry Sony, no sale.

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Fuji XE1 w/14, 18-55, 55-200, Rokinon 8mm Fisheye & Tamron 90mm f/2.8 Macro

Typical advertised 1.4 lenses are really around 1.5-1.6.
There is a 1 1/3 stop advantage to ff.

So at most the fuji is around 1/2 to 2/3 stop faster.

Pure conjecture about the "actual" aperture of the Fuji lens.  Please provide a test or source demonstrating this to be true in this case.

If we take the crop factor of 1.5 and we multiply f/1.4 * 1.5, we get an equivalent aperture of f/2.1 for the Fuji lens.  That's pretty darn close to a full stop faster than the Sony.

It's still funny to hear this blogger marvel at what Sony has accomplished when the Fuji is, by either of our maths, better still.  Creamy bokeh and shallow DOF with a 35mm equiv on a small camera!  Incredible!

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