This is a continuation of a report on new ways to look at depth of field. The series starts here: A new way to look at depth of field In the preceding post, I discussed a new way of calculating hyperfocal distances in which the criterion was degradation in resolution for objects at infinity relative… [Read More]
Archives for June 2016
Calculating hyperfocal distances using MTF50 ratios
This is a continuation of a report on new ways to look at depth of field. The series starts here: A new way to look at depth of field I’m going to leave the object-field approach for a bit, and continue on with refinements to the more traditional image plane methods, although I freely admit… [Read More]
Object-field methods for DOF management
This is a continuation of a report on new ways to look at depth of field. The series starts here: A new way to look at depth of field I will have more to say about the hyper-hyperfocal distance that I talked about yesterday, but I want to get started on something that I promised… [Read More]
Maximizing DOF in the face of diffraction
This is a continuation of a report on new ways to look at depth of field. The series starts here: A new way to look at depth of field We’ve seen in this series that stopping down giveth depth of field (DOF), and taketh away sharpness (measured in terms of MTF50, Is there a way… [Read More]
The hyper-hyperfocal distance
This is a continuation of a report on new ways to look at depth of field. The series starts here: A new way to look at depth of field Yesterday, we looked at the focus distance that made a minimal impact on the sharpness for objects at infinity, with minimal being defined as a… [Read More]