Dave Hartburn created a new topic ' Canon lens and remote focus' in the forum. 3 years ago

Does anyone have time to write a bit of information on manually focusing a Canon lens, or know if there is a guide anywhere? I've been unable to find one that works.

It may be that I'm expecting the wrong thing here. I have a Canon 700D which I have just connected up with Astroberry. Live view and manually focusing the lens is all fine. I'm testing in the less challenging daylight conditions and have my camera pointing out the window at some distant trees. If I flick the lens into auto-focus mode then bring up a live preview, it does a reasonable job of continuing to try and focus, just the same as it would if in live preview if it were not connected and I was just using the internal screen.

What I was wanting to try was to be able to stop the lens continually autofocusing and click a couple of icons to focus in and focus out. From the indi panel, there is the focus out and focus in button which don't seem to do anything. In Ekos, there is the focus tab. Going to that, there are autofocus options and the two buttons to focus in or out a number of steps. Leaving auto off and sticking with the default step size of 100, I don't notice much change. Stepping up to 10,000 steps, I can push it out of focus, but it immediately refocuses.

Is there any way I can obtain full manual focus control of the lens and get it to stay where I put it? Is my problem that I'm experimenting in daylight, looking at trees and Ekos was really not designed for that?

We have had 2 month of cloudy nights here, so when finally get out, I don't want to waste a rare clear evening fighting my camera and software!

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