Thank you for the quick response!

I have been getting this message on my last two projects when I try to save the render. The image file path in each error message is different of course. The save seems to come out ok at the end and I am able to view the final save.
Helicon Focus version 8.2.2

Failed to write image Metadata error ...

I have a Canon 70D with a 100mm 2.8 USM Macro lens (not the L). I can program the tube fine. I have sent the following in the utility program: Aperture 8, direction to camera and infinity, tried different stops 20, 30 and 40 plus I have tried suppress focus on and off. Tried camera in live view and ...