why not f/1.2 by Sony?

Started May 14, 2013 | Discussions thread
tomtom50
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Re: why not f/1.2 by Sony?
In reply to EinsteinsGhost, May 17, 2013

The f-stop, however, is not an accurate representative of exposure (light transmission), and more so at larger apertures. Unfortunately, manufacturers get away with simply quoting f-stops. I wish t-stop would be included, as they do for cine lenses.

Agreed. It is like the 60's when a car advertised at 250HP could only produce that air cleaner and exhaust removed, etc.

Now HP is SAE net and meas something. A similar regulation for lenses would be nice.

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