Oysters

Thanks Timotheus.. Forgot about Tito's calculator.. I think ill leave it at 4m, i have a few others so it should be fine

yes its is fixed focus at 4m, there is also a 3m variant if you mod it to infinity, then sharpness nearby suffers significantly. I would only suggest this if you want to use a single focus solution like Rectilux, Rangefinder or the new Aivascope (although that last one may not fit) if you want to know how the lens works on different sensors, use Tito's calculator you can use diopters to decrease the focus distance