Looking for some resources, please read..short.

[clark_king1]

I would like to find some technical resources on DOF, in all it's

glory, I mean physics, math, geometry whatever..tech stuff...where

do I find it. I've read leslie stroeble, robert wheeler, leonard

evens, would like to find more from Paul Hansma, or steven

peterson..any suggestions?

 

C King

[s._c.]

Try Q. Tuan Luong's largeformatphotography.info/ It has a lot of technical information such as dof calculators and spreadsheets on determining the plane of focus. It would probably add to the large amount of knowledge you already have from those books.

[leonard_evens]

It depends on what you want to know. I've spent considerable time trying to find good sources for this information, without a lot of success. Jacobson's tutorial and FAQ are about as good a starting point as there is. They are accessible at the photo.net website you are currently using. Unfortunately, they can be a bit misleading in some respects. I ended up deriving everything myself. In my essay, I outlined the results but left out the derivations.

 

There really isn't that much to depth of field theory, per se, at least for parallel film plane, subject plane, and lens plane. For tilted lens planes, it gets more complicated, and except for Wheeler and Merklinger, I wasn't able to find a whole lot.

 

The large format web site also has some other references which explain various aspects. Hansma's Phototechniques article is there, but that doesn't have a lot of detail.

 

Start off with Jacobson, and if you get stuck on some point, let me know and I will see if I can help you.

[michael_briggs2]

There is a good chapter on the subject in "Applied Photographic Optics" by Sidney Ray.

 

The derivation of DOF is normally done using geometric optics, which is just drawing ray diagrams and figuring dimensions from similar triangles. Biology enters via the acuity of human vision, which determines the largest acceptable circle of confusion. The best way to deal with the circle of confusion is probably to make prints and judge them yourself. Deeper physics enters if you want to consider apertures sufficiently small that diffraction becomes important.

[emmanuel_bigler]

Clark.

 

I have written two papers on Scheimpflug and DOF.

 

The English versions are here.

 

Scheimpflugs'rule, a simple ray-tracing for high school ?

http://www.galerie-photo.com/demonstration-scheimpflug_english.html

 

 

Depth of field and scheimpflug's rule : a minimalist geometrical approach

http://www.galerie-photo.com/profondeur-de-champ-scheimpflug-english.html

 

Both papers are available in .pdf format

 

http://www.largeformatphotography.info/how-to-focus.html

 

http://www.largeformatphotography.info/scheimpflug-bigler-english.pdf

http://www.largeformatphotography.info/scheimpflug-DOF-bigler-english.pdf

 

 

on Tuan Luongs most excellent web site, your preferred starting web site in this quest for DOF.

 

 

Please feel free to ask me any questions you would have about the

geometry and maths involved in these papers.

[clark_king1]

Leonard thank you I have your paper and am enjoying it for the second time, thank you for doing that work.

 

Clark