Longshadow wrote:
Interesting!
From what I could find, T-mount and M42 mount are both 42mm diameter (≈1.65 inches), but different thread pitches, and they are not compatible with each other.
≈5/8 inch is 15.875mm.
Good luck!
Yup and it's a 35mm lens and it's supposed to be a wide angle lens so it must be for at least 35mm format not smaller format like 16mm cine etc.. But the 5/8" screw mount is way too small for 35mm format.