I was trying a quick side by side test of my lenses (I'll post the geso presently) and had a weird problem with the K-3 III. I was bracketing in manual exposure mode, and it insisted on bracketing aperture rather than shutter speed. I wasn't able to find the setting to change that. I even tried doing a text search in the user manual. Does anyone have a clue how to set it for bracketing shutter speed? __ Larry Colen from Lothlorien lrc@red4est.com

A few posts from PentaxForums might help: "it is the shooting mode; set to AV , choose the aperture and correspondingly the shutter should be adjusted.just tested it and it works" "Go to Rec mode menu (camera icon) page 4, choose E-Dial Programming, choose M mode (on page 2), set Green Button function to Tv Shift. As an undocumented side effect of this setting bracketing in M mode changes only shutter speed. See pages 22 and 78 of the manual." This is for the K3II, but it wouldn't surprise me if the K3III works the same way. For sure you should be able to force auto bracketing into shutter speed adjustment by putting the camera in AV mode. bill On 8/9/2025 3:58 AM, Larry Colen wrote: > I was trying a quick side by side test of my lenses (I'll post the geso presently) and had a weird problem with the K-3 III. I was bracketing in manual exposure mode, and it insisted on bracketing aperture rather than shutter speed. I wasn't able to find the setting to change that. I even tried doing a text search in the user manual. > > Does anyone have a clue how to set it for bracketing shutter speed? > __ > Larry Colen from Lothlorien > lrc@red4est.com > >