Originally posted by photoptimist Spare batteries are pretty cheap and lightweight. But each photographer has to decide if the hassles of swapping exceed batteries whatever other benefits the camera might offer (if any).
On mirrorless , battery life is not quite the same as on DSLR. On a mirrorless camera, you can setup EVF such that is switches off when not using it but if you do so there is a lag to restart streaming to EVF when it switches on again. The other EVF setup alternative is to have the image streaming from the sensor running all the time and then alternate between EVF when you approach your eye or back LCD looking away from the EVF, so in that case there is not lag when looking at the EVF, but in that case the camera drains current from the battery. That is why, if you switch off / on a mirrorless camera after every shot, you may be able to get 1000 shots out of one battery but if you don't switch off because you want instant response of the mirrorless camera like it is for a DSLR, then, depending for how long you want to leave the camera switched on, you may get 100 shots or even less , or even not shot at all. I've use the A7 III quite a bit, if I wanted no lag in EVF, I needed to have it always on.
---------- Post added 24-08-18 at 05:17 ----------
Originally posted by kooks but not pros, pros will continue to move over to Sony..
One pro moved from D5 to 1Dx II, he did not even consider mirrorless. There are pros and pros, the real ones aren't spending time in online discussions, they don't have time for that kind of thing.
---------- Post added 24-08-18 at 05:22 ----------
The real pros (not just the ones who do two paid shot sessions per year) represent a very small revenue overall. Sony and Nikon mirrorless camera are designed for consumers who have the money to spend.