No Longer Actively Fixing Bugs

But if you create a PR I'll be happy to merge them in.

create-isocam

Create ISO Camera addon for Blender 2.8+

Initial creator, 2.8 update and bitbucket thread can be found Blender Artist

To Find it Blender 2.82+

Try to Shift+tab+a and there is a option to "Create Isocam" - As reported in this issue