Weird aperture opening behavior

[GeneImages]

Hi,

I've noticed a very strange behavior that I'd like to understand (and hopefully fix)

When I have  tight apperture (e.g. f16) set, and auto SS, half-pressing the release button goes to an exposure preview. If I release the button, shutter goes back to wide open immediately in AF-C or M, but in AF-S it opens in multiple steps. This behavior is worst in low light conditions, as these steps are becoming pretty slow.

Can somebody please explain what is going on in this case?

Thanks,

Gene

[GeneImages]

Some reverse-engineering and googling:

- Noise is a "feature" of 18-55

- The behavior looks like a firmware bug. Apparently, in this mode aperture is opened stop-by-stop, adjusting screen amplification on each step.

[pete1959]

Check your settings....

"Wrench,Pg2:"Natural Live View">Off

(If "ON" you will see the real image as if you were looking thru glass optics ie; No EVF amd no exposure(gain) adjustment)

Also:

Wrench Page 2: Preview EXP/WB>PREVIEW EXP/WB

Edited April 21, 2019 by pete1959