Hi guys, Upgraded to E-M1 v4.0 firmware and trying out focus stacking/bracketing feature on 12-40 pro. Something I've noticed is if I take a normal image on ISO 200, the image is properly exposed with a longer shutter speed which is fine as i'll be on a tripod or sturdy mount. If I then enable focus stacking or bracketing and take a number of shots on ISO 200, the images are really dark - they seem to have a short shutter speed. If I enable AUTO ISO, the images are properly exposed but the ISO is high. It seems as though I can't get Shutter Stacking/Bracketing to use a longer shutter speed and low ISO. I've tried both Aperture Priority mode and Manual Mode Has anyone else found this? I've attacked examples. Both are in Manual mode at f/2.8 on ISO 200. One is focus stacked, the other is a normal image. Both are full resolution direct from the camera. The exif data of the focus stack shows the shutter speed is 1/8sec while the normal image is 1/3sec. Why doesn't the focus stack properly expose for each photo? edit: it seems focus stack/bracket can't go any slower than 1/8sec in manual mode. why?