timparkin wrote:How easy is it to take a reading off a part of the scene, decide to place it at -1 and then see how the other exposure readings you've taken fit in? And then realise that your highlight value is at +2.5 and so pull the whole range down by half a stop?
The first problem would be that you have to either work in half-stop increments or third-stop increments; switching from one to the other involves switching the meter off, changing the increment in the setup, and restarting the meter; although it will remember your original readings.
Likewise, altering the shadow offset would mean the same switch off, adjust and restart cycle.
I would tend to simply make the adjustment, to the displayed exposure, in my head.
timparkin wrote:I might be working on an iPhone light meter at some point this year which would could make all of the working out a hell of a lot easier...

I tested the basic light meter on the iPhone this morning against my pentax and was surprised to find it accurate to half a stop from 3Ev to 15Ev! wow!
Hmmm, interesting. but, I would assume it wouldn't qualify as a 1° spot meter
