omegon polfinder eq300 reticle (2018).jpeg

This is a compact camera shot of the view through my Omegon Polar Finder for the EQ-300 of the same manufacturer. (taken with Canon Powershot SX110 IS)

It shows the reticle, which is not especially practical, since there's no mark facing years and no angular distance scale.

So I used direct shots at the background scene with known focal and FoV to calibrate the finder resolution, then used it to mark the 2018 distance for Polaris-NCP.