I was playing with zx-50, no film was installed. Suddenly, the shutter seems stuck after I pressed the shutter release button. The viewfinder was all black, i didn't hear shutter release sound but some noise, which sounded like motor sound and lasted for more than 1 second.
Now the camera won't function at all. Whenever I touch any button or change setting, or even just install batteries, that noise will come up.
Also, the lens aperture is not always wide open when I turn the aperture ring.
I guess something got stuck? Any heads-up? Thanks.