- ETTR shouldn't actually be an extra metering mode, but a new exposure calculation mode. So it could work in parallel to preexisting metering philosophies. For example ETTR + spot metering would mean you want to expose the metered point as much as possible right before clipping it.
This implementation with the spot mode could be very useful indeed!
On the other hand, I don't see as well an ETTR calculation based on the center-weighted average.
But that's just why we pay some good money to camera makers, to elegantly resolve these kind of things - for the moment we're working in their place, unpaid!
And about names, I think the "Expose to the Right" has been enough debated to keep its name, even if I'm also more on the "clipping protection" side.
This subject is debated from time to time on french forums and I'm bewildered about how many photographers just look at the middle tones as (beginners) in the old chemical days and don't pay any attention to clipping, and then complaining that their digital camera doesn't handle highlights well enough (this example
, if you read french, is much less caricatural but still to the point : the debate started with an advanced amateur who associated ETTR with
partial color clipping - hey guys ETTR is crap! ).
It's fair to say that in France, good technical information is quite scarce, and as many frenchmen are really poor at any foreign language, that hinders them to seek the information where it is - namely on english-speaking resources like here.
Even within these restrictions, I think that such a feature would indeed make many people progress
, allowing them to realize that 18% grey is a thing of the past regarding raw exposure metering.
Call me an optimistic if you want, but hoping for camera makers to release such a innovative thing is also optimism, isn't it?