It works, that means you don't need the button, but have you still have to meter and then recompose.Is it just me, but exposure lock doesn't work when you're in Manual mode
The black and white looks good too, but personally I actually don't see a need to throw away those nice brown and yellow forest colors at all...You have "image editing OK" so I played with this a bit. Of course, you could do more with the original file. I probably made the shadows too dark, though. I cropped to 16:9 because there were some high distractions in the lower right and across the top.
Tried a B&W conversion to.
Good advice!!!In short: change your position when the content of the situation is 'normal'.