Developer for spatial frequency

[Mustafa Umut Sarac]

Is there a development technique which contrast change with the spatial frequency of the image ?

Thank you ,

Umut
Istanbul

 

[Monito]

High acutance developers.

 

[Mustafa Umut Sarac]

Monito , thank you. Could you please give mea brief on how they are working parallel to difference on lp/mm per image part ?

Umut

 

[Monito]

"difference on lp/mm per image part" makes no sense in relation to your question about contrast change.

A lens may resolve more line pairs in the center than the edge, but a developer is not going to fix that.

Your original question as phrased seemed to be more about things like the Einstein / Marilyn picture combination. A high acutance developer enhances edges (high spatial frequency) but it doesn't actually make it sharper, only apparently sharper.

Digitally you can make an image have low overall contrast and high microcontrast or vice versa.

 

[Mustafa Umut Sarac]

My main interest is to change MTF curve of a negative. If I am not wrong , MTF curve documents low to high lp/mm of image and its contrast.
Is it possible to change low and high lp/mm high contrast , middle lp/mm to lower contrast like Leica lenses.
Thats why a nude woman at night looks whiter , her hairs glow but her criss cross shirt seems lower contrast.

Umut

 

[Monito]

You can't get something for nothing.

 

[Alan Johnson]

My main interest is to change MTF curve of a negative. If I am not wrong , MTF curve documents low to high lp/mm of image and its contrast.
Is it possible to change low and high lp/mm high contrast , middle lp/mm to lower contrast like Leica lenses.
Thats why a nude woman at night looks whiter , her hairs glow but her criss cross shirt seems lower contrast.

Umut

Here is included a discussion of developer effect on film MTF curve:
http://www.normankoren.com/Tutorials/MTF1A.html
The adjacency effect in a dilute one shot developer is visible on the red line at low frequency.

 

[Mustafa Umut Sarac]

Thank you very much Alan.