Focus Oscillation in K3 iii?

Started 4 months ago | Discussions thread
Polacofede Senior Member • Posts: 1,404
Re: Focus Oscillation in K3 iii?

JoeOptics314 wrote:

Polacofede wrote:

Are you shooting in single shot mode? Have you set up the camera in order to use the back button to focus and the release to just take the shot or when pressing the release button is also focusing?

I am shooting single shot mode. I push the button half way down, listen for the high pitched tone and red lines for a second in the viewfinder telling me I am in focus and then push the rest of the way down to take the picture. When I do that repeatedly , waiting before each shot for the audio and visual focus cues, I see significant variation in how sharp the focus is. Even on a tripod viewing a fixed target. The amount of defocus across 3 to 5 shots seems larger with the 70-210 mm lens than with my 55-300 mm PLM

So you are re focusing on each shot. Can You try to configure the camera to focusing using back button and just use the trigger to do the shot? Then, you avoid re focusing on each shot?

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