Since I published this model I realised it cannot focus to infinity. I made a mistake when testing it, I tested it inside.
I'ill be fixing this issue.
This modification to your Helios 44M allows you to mount it to your Nikon DSLR (Nikon F).
When taking apart your Helios 44M be careful not remove your aperture ring because you won't be able to put back both of the balls for the clicking.
If you want to declick it, then remove them.
The author marked this model as their own original creation.