This was raised partially in another forum much earlier.
I did not know in the current M4/3 zoom lens, the aperture control was in the body.
Even when you set the aperture priority mode to the largest opening, when you zoom to the max, the body electronic will adjust to a smaller opening to compensate in order to have a "perfect" picture.
I thought this applied for M4/3 system only.
Last week in ICT, have a small chat with a fellow reservist. He told me he was a wedding photographer using Nikon D800 with zoom lens instead of a fix lens.
I asked him whether the (Nikon)zoom lens aperture could be fix at a particular opening even when he zoomed the lens to the max. He gave me a blank look. He told me that he never pay attention to that or set the aperture opening in the lens before.
For those who have continusously taking photo with interchangeable lens from film era to today digital. Is it thru now a days, the lenses have no aperture settings?
Sometimes I feel like Rip Van Winkle wakes up from a long sleep.