Entire stack is backfocused?
Posted: 05.01.2021 00:19
I'm shooting with a Nikon D4s and 200mm f/4 macro lens. Camera and lens are set to autofocus (AF-S mode in camera), lens is set for Full focus range. USB connection from camera to computer running Helicon Remote is good. I have used the procedure in the instructions to determine a focus correction factor of 8.2 for this lens and entered that into the software. I used the auto focus button in Helicon Remote to focus on my near point at roughly 27 inches from the focal plane and set that to point A and saved it. I then used the arrows in HR to move the focus to the far point (a little over 29 1/2 inches) and set that to point B and saved that. With this, Helicon computed 26 shots at an interval of 7. I clicked Start Shooting and it took the 26 shots.
The first shot was focused about half an inch behind Point A, and the last 7 or 8 shots were entirely blurred and focused behind point B. I have been repeating this over and over, and also tried using a 60mm F/2.8 macro with the same basic result. I have taken single shots from HR remotely and they are fine. when I set the initial focus point (Point A) I first focus from the camera and then confirm that by clicking on that point to auto focus in HR before I set and save that point. I don’t know what I could have set wrong to make the software backfocus like that? Anything you could do to help would be much appreciated.
The first shot was focused about half an inch behind Point A, and the last 7 or 8 shots were entirely blurred and focused behind point B. I have been repeating this over and over, and also tried using a 60mm F/2.8 macro with the same basic result. I have taken single shots from HR remotely and they are fine. when I set the initial focus point (Point A) I first focus from the camera and then confirm that by clicking on that point to auto focus in HR before I set and save that point. I don’t know what I could have set wrong to make the software backfocus like that? Anything you could do to help would be much appreciated.