Fuji 23 1.4 vs. Sony A7 35 2.8

Started Nov 7, 2013 | Discussions thread
viking79
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Re: Fuji 23 1.4 vs. Sony A7 35 2.8
In reply to DonSantos, Nov 7, 2013

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.

The Sony Zeiss has the same issue, maybe f/3.  Bottom line is the f/1.4 will probably drop off a bit more from sensor vignetting (microlenses don't work as well with large aperture lenses) in addition to transmission losses in the lens.

Bottom line is Sony Zeiss 35mm f/2.8 is pretty equivalent to the 24mm f/1.8 in their own mount, but the Fuji is going to be half stop larger effective aperture.

Given that the Zeiss is $800 and the Fuji 23mm f/1.4 $900, I think the 23mm is the better priced lens.

Eric

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