That 3D effect ...

[dmr]

For the life of me I can't find the original thread on this topic, I know it was only a couple days ago. 🙁

Anyway, here's one I took yesterday where I tried intentionally to show that effect, and when I view it on the laptop or on a print, it is quite striking. It's not as pronounced here on the CRT monitor, though.

I exposed with as wide an aperture as I could with the 400 film (setting sun, mostly clear, subject in open shade) and focused on the foreground and made sure there was nothing significant between the foreground and background.

I think what helps with this effect is to have the background out of focus to the degree that it would be similar when viewed by the human eye when focused on the foreground.

This was with the Mamiya SD, stock 48mm f1.7 lens, 1/500, and overexposed intentionally a stop or so to limit the depth of field.

 

[Roger Hicks]

A lot depends on focal length and repro size, too: the 3d effect tends to be strongest when the angle subtended by the images in the print are similar to the angles subtended in real life. Personally I find more 3d effect in 'deep field' compositions than with o-o-f backgrounds, because the eye automatically adjusts for focus in real life.

Cheers,

Roger (www.rogerandfrances.com)