|I changed the focus from the yellow to the blue cages and lowered angle a bit. The yellow and red cages seem to be in focus less than when the camera was focused on the yellow cages. You will need to look into hyperfocus.|
200mm @ f/13
At a long focal length, 200mm, the depth of field is shallow even at a rather small aperture, f/13.
I used a shorter focal length here, 42mm @ f/4.4
Here the aperture is close to wide open, f/4.4, the depth of field is greater then the above two photographs because of the shorter focal length.
Pelargonium 135mm @ f/22
Here again, long focal length decreases the depth of field.
Try some test images on your own camera.
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