Guides to depth of field, hyperfocal distance, focus pulling and optics from the makers of DoF Mate.https://dof.korsund.com/https://dof.korsund.com/blog/depth-of-field-explained/https://dof.korsund.com/blog/depth-of-field-explained/What depth of field is, the four things that control it, and how to get exact near, far and total DoF for any camera and lens — with worked examples on iPhone.Tue, 16 Jun 2026 00:00:00 GMThttps://dof.korsund.com/blog/hyperfocal-distance-guide/https://dof.korsund.com/blog/hyperfocal-distance-guide/Hyperfocal distance is the focusing trick that keeps landscapes sharp from the foreground to infinity. Here is what it means, how to calculate it, and how to use it on location.Sun, 14 Jun 2026 00:00:00 GMThttps://dof.korsund.com/blog/how-to-pull-focus/https://dof.korsund.com/blog/how-to-pull-focus/Pulling focus is part math, part muscle memory. Learn how to set marks, read a focus-pull chart, measure distance fast, and hand clean numbers to your crew.Fri, 12 Jun 2026 00:00:00 GMT