bug99
Pulling my weight
- Dec 27, 2016
- 398
- 154
I need some help understanding the focus on this camera. I have it zoomed all the way (which is not enough by about 50%) to see a car on the far side of the road in front of my house clearly. When I go to the zoom & focus setup tab, I see this image, with the “speed” always on 20, which appears to be the word used for the step size when selecting + or -. It seems that the focus is always at 80 when I return to this page, no matter what I select when I leave (no save), or an increment of 20. There seems to be a range of around 70 to 85 where things are not too far out of focus while in preview mode, but as I said, it reverts to 80 when I go to/from Live view. I am not even sure it is in or out of auto focus.
I tried having someone hold a broom head still 3 ft from the camera. It did not appear to focus on that on its own. If I tweaked the preview focus to 85 it was much better.
One odd thing was after removing the broom and going to live view, the focus appeared to stay at 85, but returning to the settings showed 80 as it normally was, but it was clearly not (in this case not clear).
Selecting auto focus changed the true focus to what is below, all the while showing 80.
A minor oddity is that going from 80 to 85 is in the direction of “FAR”, but it is actually the opposite affect with the broom focus.
I think the focus is a compromise in the frame, trying to have the most stuff with a clear high frequency signal at the image sensor. I think the tree limbs etc. make that compromise sub-optimal for the car across the street. Is there a normal way to change this and save it? Is the camera actually in auto-focus mode, or is that just a button push?
I tried having someone hold a broom head still 3 ft from the camera. It did not appear to focus on that on its own. If I tweaked the preview focus to 85 it was much better.
One odd thing was after removing the broom and going to live view, the focus appeared to stay at 85, but returning to the settings showed 80 as it normally was, but it was clearly not (in this case not clear).
Selecting auto focus changed the true focus to what is below, all the while showing 80.
A minor oddity is that going from 80 to 85 is in the direction of “FAR”, but it is actually the opposite affect with the broom focus.
I think the focus is a compromise in the frame, trying to have the most stuff with a clear high frequency signal at the image sensor. I think the tree limbs etc. make that compromise sub-optimal for the car across the street. Is there a normal way to change this and save it? Is the camera actually in auto-focus mode, or is that just a button push?
Now we have over 15 of those in our states with most of them in my town. We like it because there no left turn signal to wait for and no long left turn traffic backing us up.
