Halfway
Halfway tells you where to focus so everything from the foreground to infinity is sharp. It is made for the Hasselblad X2D II 100C and the XCD 2,5/25V, 38V, 55V and 90V lenses, and it works entirely offline.
Using it
Pick a lens at the top and tap an aperture in the table. The large number is where to focus; everything from the near limit underneath it to infinity is sharp. The table shows the same figures for every half-stop at once.
The Standard tab sets how strict "sharp" is: Print, Large, Pixel or your own value. Apertures marked in orange are ones where diffraction alone exceeds that standard.
The Info tab explains the method and lists every formula the app uses.
Distances look slightly off at close range
Halfway measures distance from the lens, using the thin-lens model. Hasselblad quotes focus distance from the image plane, so expect small differences at close range.
Contact
Questions, bugs or suggestions: konrad@tonalphoto.com
Privacy
Halfway collects no data. Read the privacy policy.