Re: Official: Sony A7 and A7R Fullframe Mirrorless
Focus magnification is just that - an excellent method of setting focus - two levels - after which most sensible photographers will simply return to the full screen view and set up their shot or shoot.
Cameras have another facility called exposure. Most of the sophisticated systems use various cues from across the frame, but permit the old centre weighted arrangement or spot metering.
To meter in real time a variable patch of screen real estate, user changable in a moment, with very likely deleterious effects on responsiveness - metering has to remain active or you will gripe about that too.
Now menuing. Many users are already having trouble with the rather logical layout of Alpha menus. You would just be adding to this complexity with : focus assist by level of magnification by mode of metering, because you want options right? Also, you cannot sensibly shoot directly from focus magnification, you can\'t see the image right, but just a bit of it.
And what if most users do not want \'spot\' metering of the kind you ask for? They don\'t, many don\'t even know what it means...
On brightness on FA, Sony think you are smart enough not to do too many things at once - it is the same issue in another direction...changing aperture will change every part of the image not just the magnified part! Why should the camera adjust for perhaps 5% of the image? You assume the only object of interest is that focus assisted on - I may focus on an eye, but want the whole face rendered well.
It\'s FOCUS assist, not aperture change assist or exposure assist, which are \'all of frame\' issues in photography. Your suggestion runs counter to the KISS principle - Sony would be wise to ignore it. It also puts \'might\' in place of \'will\' - the equal treatment of 1% needs (might) against the 99% that (will) happen or be wanted. A common interface mistake.
Nov 28, 2013 at 03:56 PM
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