Modern DSLR component question

[george013]

Dave,
I think the diaphragm on a modern lens/camera is electronic operated.

Manfred,
I don't know what you mean with a burst. Continue shooting? I thought the mirror stays up then. I can't select live view and continue. It's on the same selection wheel.

George

PS. I must correct that. Mirror goes up and down with continue shooting. D700.

George

[Inkanyezi]

I think the diaphragm on a modern lens/camera is electronic operated.

There are different approaches. Nikon cameras stop down mechanically, which allows compatibility with lenses made before electronic control.

[Stagecoach]

Ed, George...............

For further info regarding the function of the RGB sensor, its evolution to present and where it plays a part in exposure and colour in Nikons here's a good article.

Look at 'Evolution of Matrix Metering' about half way down.

http://dpanswers.com/content/nikon_exposure.php

[george013]

Thanks for the link. Looks good and logical builded. I'll read it more careful later.

George